taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098743/files/figure.png	https://doi.org/10.5281/zenodo.22098743	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098758/files/figure.png	https://doi.org/10.5281/zenodo.22098758	Fig. 98. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrow indicates the hypoepimeron. A. L. sopinci (Crawford, 1932) – mesepisternum rugulose and impunctate. B. L. aspilurus (Cockerell, 1925) – mesepisternum rugulose and without distinct punctures, except the hypoepimeron, which is smooth and punctate. C. L. ovaliceps (Cockerell, 1898) – mesepisternum smooth with distinct punctures.	Fig. 98. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrow indicates the hypoepimeron. A. L. sopinci (Crawford, 1932) – mesepisternum rugulose and impunctate. B. L. aspilurus (Cockerell, 1925) – mesepisternum rugulose and without distinct punctures, except the hypoepimeron, which is smooth and punctate. C. L. ovaliceps (Cockerell, 1898) – mesepisternum smooth with distinct punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098745/files/figure.png	https://doi.org/10.5281/zenodo.22098745	Fig. 94. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrows mark the anterior margin of the mesoscutum, yellow arrows mark the tegula. A. L. kincaidii (Cockerell, 1898) – anterior margin rugulose; tegula enlarged and punctate. B. L. nelumbonis (Robertson, 1890) – anterior margin rugulose; tegula normal and largely impunctate. C. L. pectorale (Smith, 1853) –anterior margin distinctly punctate.	Fig. 94. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrows mark the anterior margin of the mesoscutum, yellow arrows mark the tegula. A. L. kincaidii (Cockerell, 1898) – anterior margin rugulose; tegula enlarged and punctate. B. L. nelumbonis (Robertson, 1890) – anterior margin rugulose; tegula normal and largely impunctate. C. L. pectorale (Smith, 1853) –anterior margin distinctly punctate.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098556/files/figure.png	https://doi.org/10.5281/zenodo.22098556	Fig. 18. Metasoma of Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀ ♀ (EMEC). A. light morph. B. Dark morph. Scale bar = 1 mm.	Fig. 18. Metasoma of Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀ ♀ (EMEC). A. light morph. B. Dark morph. Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098571/files/figure.png	https://doi.org/10.5281/zenodo.22098571	Fig. 24. Metasoma of Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925). A–B. Light morphs of females (UCRC). C. Dark morph of female (UCRC). D. Light morph of male (UCRC). E. Dark morph of male (UCRC). Scale bar = 1 mm.	Fig. 24. Metasoma of Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925). A–B. Light morphs of females (UCRC). C. Dark morph of female (UCRC). D. Light morph of male (UCRC). E. Dark morph of male (UCRC). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098578/files/figure.png	https://doi.org/10.5281/zenodo.22098578	Fig. 27. Lasioglossum (Hemihalictus) buccale (Pérez, 1903), ♀ (WRME). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 27. Lasioglossum (Hemihalictus) buccale (Pérez, 1903), ♀ (WRME). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098751/files/figure.png	https://doi.org/10.5281/zenodo.22098751	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098753/files/figure.png	https://doi.org/10.5281/zenodo.22098753	Fig. 96. Head and mesosoma females of Lasioglossum (Hemihalictus) Cockerell, 1897 species showing tomentum density and colour. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev.	Fig. 96. Head and mesosoma females of Lasioglossum (Hemihalictus) Cockerell, 1897 species showing tomentum density and colour. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098536/files/figure.png	https://doi.org/10.5281/zenodo.22098536	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098543/files/figure.png	https://doi.org/10.5281/zenodo.22098543	Fig. 13. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), ♀♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 13. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), ♀♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098545/files/figure.png	https://doi.org/10.5281/zenodo.22098545	Fig. 14. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), holotype, ♀ (USNM Type No. 10930). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 14. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), holotype, ♀ (USNM Type No. 10930). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098523/files/figure.png	https://doi.org/10.5281/zenodo.22098523	Fig. 6. Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), ♀ (EMEC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 6. Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), ♀ (EMEC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098553/files/figure.png	https://doi.org/10.5281/zenodo.22098553	Fig. 17. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀♀ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 17. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀♀ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098531/files/figure.png	https://doi.org/10.5281/zenodo.22098531	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098756/files/figure.png	https://doi.org/10.5281/zenodo.22098756	Fig. 97. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species, highlighting pronotal angle (outlined in top left corner of each panel). A–B. Species with pronotal angle ~ 90 degrees. A. L. pectinatum (Robertson, 1890). B. L. sopinci (Crawford, 1932). C–E. Species with pronotal angle obtuse. C. L. opata sp. nov. D. L. angustius (Cockerell, 1897). E. L. buccale (Pérez, 1903).	Fig. 97. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species, highlighting pronotal angle (outlined in top left corner of each panel). A–B. Species with pronotal angle ~ 90 degrees. A. L. pectinatum (Robertson, 1890). B. L. sopinci (Crawford, 1932). C–E. Species with pronotal angle obtuse. C. L. opata sp. nov. D. L. angustius (Cockerell, 1897). E. L. buccale (Pérez, 1903).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098760/files/figure.png	https://doi.org/10.5281/zenodo.22098760	Fig. 99. Inner metatibial spur of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–E. Teeth shorter than the width of rachis. A. L. buccale (Pérez, 1903). B. L. pectinatum (Robertson, 1890). C. L. sequoiae (Michener, 1936). D. L. lustrans (Cockerell, 1897). E. L. villosulum (Kirby, 1802). F–H. Basal teeth length longer than the width of rachis. F. L. pectoraloides (Cockerell, 1895). G. L. engleri sp. nov. H. L. angusticulum sp. nov..	Fig. 99. Inner metatibial spur of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–E. Teeth shorter than the width of rachis. A. L. buccale (Pérez, 1903). B. L. pectinatum (Robertson, 1890). C. L. sequoiae (Michener, 1936). D. L. lustrans (Cockerell, 1897). E. L. villosulum (Kirby, 1802). F–H. Basal teeth length longer than the width of rachis. F. L. pectoraloides (Cockerell, 1895). G. L. engleri sp. nov. H. L. angusticulum sp. nov..	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098779/files/figure.png	https://doi.org/10.5281/zenodo.22098779	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098766/files/figure.png	https://doi.org/10.5281/zenodo.22098766	Fig. 101. Variation in tegula among selected females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. glabriventre (Crawford, 1907) – elongate and punctate. B. L. glabriventre – variation showing fewer punctures and subtle shape differences. C. L. birkmanni (Crawford, 1906) – ovate and broadly impunctate. D. L. pectoraloides (Cockerell, 1895) – ovate and broadly impunctate.	Fig. 101. Variation in tegula among selected females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. glabriventre (Crawford, 1907) – elongate and punctate. B. L. glabriventre – variation showing fewer punctures and subtle shape differences. C. L. birkmanni (Crawford, 1906) – ovate and broadly impunctate. D. L. pectoraloides (Cockerell, 1895) – ovate and broadly impunctate.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098768/files/figure.png	https://doi.org/10.5281/zenodo.22098768	Fig. 102. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the apical impressed area of T2. A. L. engleri sp. nov. – lacking coriarious microsculpture; metasomal hairs dense. B. L. macoupinense (Robertson, 1895) – with coriarious microsculpture; metasomal hairs sparse. Scale bars = 1 mm.	Fig. 102. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the apical impressed area of T2. A. L. engleri sp. nov. – lacking coriarious microsculpture; metasomal hairs dense. B. L. macoupinense (Robertson, 1895) – with coriarious microsculpture; metasomal hairs sparse. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098770/files/figure.png	https://doi.org/10.5281/zenodo.22098770	Fig. 103. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–B. Metasoma with basal patches. A. L. pathiranae sp. nov. B. L. subobscurum (Cockerell, 1895). C. Metasoma without basal patches, L. foxii (Robertson, 1895).	Fig. 103. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–B. Metasoma with basal patches. A. L. pathiranae sp. nov. B. L. subobscurum (Cockerell, 1895). C. Metasoma without basal patches, L. foxii (Robertson, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098775/files/figure.png	https://doi.org/10.5281/zenodo.22098775	Fig. 105. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897; inset boxes highlight mesoscutal punctation, ‘doubly punctate’ refers to the presence of two distinct puncture sizes – large punctures intermixed with minute punctures. A. L. angusticulum sp. nov. – mesoscutum mostly polished and with a distinctly double punctation. B. L. angustius (Cockerell, 1897) – mesoscutum imbricate without a distinct double punctation.	Fig. 105. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897; inset boxes highlight mesoscutal punctation, ‘doubly punctate’ refers to the presence of two distinct puncture sizes – large punctures intermixed with minute punctures. A. L. angusticulum sp. nov. – mesoscutum mostly polished and with a distinctly double punctation. B. L. angustius (Cockerell, 1897) – mesoscutum imbricate without a distinct double punctation.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098782/files/figure.png	https://doi.org/10.5281/zenodo.22098782	Fig. 107. Lateral view of heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in genal tomentum. A–B. Genal surface obscured by tomentum. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. subobscurum (Cockerell, 1895). C–D. Genal surface not obscured by tomentum. C. L. swenki (Crawford, 1906). D. L. fedorense (Crawford, 1906).	Fig. 107. Lateral view of heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in genal tomentum. A–B. Genal surface obscured by tomentum. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. subobscurum (Cockerell, 1895). C–D. Genal surface not obscured by tomentum. C. L. swenki (Crawford, 1906). D. L. fedorense (Crawford, 1906).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098762/files/figure.png	https://doi.org/10.5281/zenodo.22098762	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098614/files/figure.png	https://doi.org/10.5281/zenodo.22098614	Fig. 40. Dorsal view of mesosoma of female Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A. UCMC. B. USGS. C. OSAC. D. RSKM. E–F. EMEC. Scale bars = 1 mm.	Fig. 40. Dorsal view of mesosoma of female Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A. UCMC. B. USGS. C. OSAC. D. RSKM. E–F. EMEC. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098786/files/figure.png	https://doi.org/10.5281/zenodo.22098786	Fig. 108. T2–T3 of females of Lasioglossum (Hemihalictus) Cockerell, 1897; white line drawing shows the premarginal line of T1. A. L. ruficorne (Crawford, 1907). B. L. foxii (Robertson, 1895).	Fig. 108. T2–T3 of females of Lasioglossum (Hemihalictus) Cockerell, 1897; white line drawing shows the premarginal line of T1. A. L. ruficorne (Crawford, 1907). B. L. foxii (Robertson, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098788/files/figure.png	https://doi.org/10.5281/zenodo.22098788	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098790/files/figure.png	https://doi.org/10.5281/zenodo.22098790	Fig. 110. Dorsal mesosoma views of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrows mark the anterior margin of the mesoscutum. A–B. Enlarged, broadly punctate tegula. A. L. kincaidii (Cockerell, 1898). B. L. glabriventre (Crawford, 1907). C–D. Normal, broadly impunctate tegula. C. L. pathiranae sp. nov. D. L. nelumbonis (Robertson, 1890).	Fig. 110. Dorsal mesosoma views of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrows mark the anterior margin of the mesoscutum. A–B. Enlarged, broadly punctate tegula. A. L. kincaidii (Cockerell, 1898). B. L. glabriventre (Crawford, 1907). C–D. Normal, broadly impunctate tegula. C. L. pathiranae sp. nov. D. L. nelumbonis (Robertson, 1890).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098796/files/figure.png	https://doi.org/10.5281/zenodo.22098796	Fig. 111. Propodeum of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture; white arrows mark the apical carina. A–B. Apical carina prominently raised. A. L. nelumbonis (Robertson, 1890). B. L. pathiranae sp. nov. C. Apical carina not distinctly raised, L. pectoraloides (Cockerell, 1895).	Fig. 111. Propodeum of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture; white arrows mark the apical carina. A–B. Apical carina prominently raised. A. L. nelumbonis (Robertson, 1890). B. L. pathiranae sp. nov. C. Apical carina not distinctly raised, L. pectoraloides (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098802/files/figure.png	https://doi.org/10.5281/zenodo.22098802	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098806/files/figure.png	https://doi.org/10.5281/zenodo.22098806	Fig. 113. Pronotal dorsolateral ridge of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. pectorale (Smith, 1853) – smoothly rounded. B. L. angusticulum sp. nov. – sharply angled. Note: panels are shown at slightly different viewing angles.	Fig. 113. Pronotal dorsolateral ridge of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. pectorale (Smith, 1853) – smoothly rounded. B. L. angusticulum sp. nov. – sharply angled. Note: panels are shown at slightly different viewing angles.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098811/files/figure.png	https://doi.org/10.5281/zenodo.22098811	Fig. 114. T1 of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. pectorale (Smith, 1853) – anterior face lacking a fan, though scattered straight hairs are present. B. L. angusticulum sp. nov. – anterior face with a weak fan of overlapping, appressed hairs.	Fig. 114. T1 of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. pectorale (Smith, 1853) – anterior face lacking a fan, though scattered straight hairs are present. B. L. angusticulum sp. nov. – anterior face with a weak fan of overlapping, appressed hairs.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098817/files/figure.png	https://doi.org/10.5281/zenodo.22098817	Fig. 115. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species in view showing the mandibles. A–D. Mandible elongate. A. L. absurdiceps (Timberlake, 1960). B. L. lustrans (Cockerell, 1897). C. L. pectinatum (Robertson, 1890). D. L. swenki (Crawford, 1906). E–F. Mandible short. E. L. villosulum (Kirby, 1802). F. L. subobscurum (Cockerell, 1895).	Fig. 115. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species in view showing the mandibles. A–D. Mandible elongate. A. L. absurdiceps (Timberlake, 1960). B. L. lustrans (Cockerell, 1897). C. L. pectinatum (Robertson, 1890). D. L. swenki (Crawford, 1906). E–F. Mandible short. E. L. villosulum (Kirby, 1802). F. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098527/files/figure.png	https://doi.org/10.5281/zenodo.22098527	Fig. 7. Macrocephalic Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), holotype, ♂ (CAS). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 7. Macrocephalic Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), holotype, ♂ (CAS). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098529/files/figure.png	https://doi.org/10.5281/zenodo.22098529	Fig. 8. Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 8. Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098558/files/figure.png	https://doi.org/10.5281/zenodo.22098558	Fig. 19. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., paratype, ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 19. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., paratype, ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098824/files/figure.png	https://doi.org/10.5281/zenodo.22098824	Fig. 116. Antenna of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing the relative lengths of the pedicel, flagellomere 1, and flagellomere 2 (arrows). A. L. diatretum (Vachal, 1904) – long. B. L. buccale (Pérez, 1903) – short.	Fig. 116. Antenna of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing the relative lengths of the pedicel, flagellomere 1, and flagellomere 2 (arrows). A. L. diatretum (Vachal, 1904) – long. B. L. buccale (Pérez, 1903) – short.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098828/files/figure.png	https://doi.org/10.5281/zenodo.22098828	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098832/files/figure.png	https://doi.org/10.5281/zenodo.22098832	Fig. 118. A–B. Hind legs of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. diatretum (Vachal, 1904). B. L. ruficorne (Crawford, 1907). C–E. Dorso-lateral view of male abdomen. C. L. foxii (Robertson, 1895). D. L. diatretum. E. L. ruficorne. F–H. Line drawing showing T3–4 apical rim depression of the male abdomens. F. L. foxii. G. L. diatretum. H. L. ruficorne. I–K. Dorsal view of male abdomen. I. L. foxii. J. L. diatretum. K. L. ruficorne.	Fig. 118. A–B. Hind legs of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. diatretum (Vachal, 1904). B. L. ruficorne (Crawford, 1907). C–E. Dorso-lateral view of male abdomen. C. L. foxii (Robertson, 1895). D. L. diatretum. E. L. ruficorne. F–H. Line drawing showing T3–4 apical rim depression of the male abdomens. F. L. foxii. G. L. diatretum. H. L. ruficorne. I–K. Dorsal view of male abdomen. I. L. foxii. J. L. diatretum. K. L. ruficorne.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098616/files/figure.png	https://doi.org/10.5281/zenodo.22098616	Fig. 41. Dorsal view of mesosoma of male Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A, D. EMEC. B–C, F. UCRC. E. PMAE. Scale bars = 1 mm.	Fig. 41. Dorsal view of mesosoma of male Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A, D. EMEC. B–C, F. UCRC. E. PMAE. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098836/files/figure.png	https://doi.org/10.5281/zenodo.22098836	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098717/files/figure.png	https://doi.org/10.5281/zenodo.22098717	Fig. 81. Lasioglossum (Hemihalictus) sequoiae (Michener, 1936), ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 81. Lasioglossum (Hemihalictus) sequoiae (Michener, 1936), ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF7FFCBFDFCFDE1FE8CFB1B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098567/files/figure.png	https://doi.org/10.5281/zenodo.22098567	Fig. 23. Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925), ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 23. Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925), ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098523/files/figure.png	https://doi.org/10.5281/zenodo.22098523	Fig. 6. Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), ♀ (EMEC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 6. Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), ♀ (EMEC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098527/files/figure.png	https://doi.org/10.5281/zenodo.22098527	Fig. 7. Macrocephalic Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), holotype, ♂ (CAS). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 7. Macrocephalic Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), holotype, ♂ (CAS). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098529/files/figure.png	https://doi.org/10.5281/zenodo.22098529	Fig. 8. Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 8. Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098531/files/figure.png	https://doi.org/10.5281/zenodo.22098531	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098536/files/figure.png	https://doi.org/10.5281/zenodo.22098536	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098538/files/figure.png	https://doi.org/10.5281/zenodo.22098538	Fig. 11. Genitalia of Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), holotype, ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 11. Genitalia of Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960), holotype, ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098540/files/figure.png	https://doi.org/10.5281/zenodo.22098540	Fig. 12. Georeferenced collection records of Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 12. Georeferenced collection records of Lasioglossum (Hemihalictus) absurdiceps (Timberlake, 1960) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098551/files/figure.png	https://doi.org/10.5281/zenodo.22098551	Fig. 16. Distribution map of four species in Lasioglossum (Hemihalictus) arizonense group: L. absurdiceps (Timberlake, 1960) (red dots), L. arizonense (Crawford, 1907) (blue dots), L. tomentosum sp. nov. (yellow dots), and L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (green dots). Note: holotype locations are marked with stars inside dots; however, the blue dot with star is centrally placed, as holotype location is only known as Arizona. Produced by Simplemappr (Shorthouse 2010).	Fig. 16. Distribution map of four species in Lasioglossum (Hemihalictus) arizonense group: L. absurdiceps (Timberlake, 1960) (red dots), L. arizonense (Crawford, 1907) (blue dots), L. tomentosum sp. nov. (yellow dots), and L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (green dots). Note: holotype locations are marked with stars inside dots; however, the blue dot with star is centrally placed, as holotype location is only known as Arizona. Produced by Simplemappr (Shorthouse 2010).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098751/files/figure.png	https://doi.org/10.5281/zenodo.22098751	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098753/files/figure.png	https://doi.org/10.5281/zenodo.22098753	Fig. 96. Head and mesosoma females of Lasioglossum (Hemihalictus) Cockerell, 1897 species showing tomentum density and colour. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev.	Fig. 96. Head and mesosoma females of Lasioglossum (Hemihalictus) Cockerell, 1897 species showing tomentum density and colour. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098817/files/figure.png	https://doi.org/10.5281/zenodo.22098817	Fig. 115. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species in view showing the mandibles. A–D. Mandible elongate. A. L. absurdiceps (Timberlake, 1960). B. L. lustrans (Cockerell, 1897). C. L. pectinatum (Robertson, 1890). D. L. swenki (Crawford, 1906). E–F. Mandible short. E. L. villosulum (Kirby, 1802). F. L. subobscurum (Cockerell, 1895).	Fig. 115. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species in view showing the mandibles. A–D. Mandible elongate. A. L. absurdiceps (Timberlake, 1960). B. L. lustrans (Cockerell, 1897). C. L. pectinatum (Robertson, 1890). D. L. swenki (Crawford, 1906). E–F. Mandible short. E. L. villosulum (Kirby, 1802). F. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098553/files/figure.png	https://doi.org/10.5281/zenodo.22098553	Fig. 17. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀♀ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 17. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀♀ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098543/files/figure.png	https://doi.org/10.5281/zenodo.22098543	Fig. 13. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), ♀♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 13. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), ♀♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFF1FFD6FE71FD67FDBDFBD1.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098547/files/figure.png	https://doi.org/10.5281/zenodo.22098547	Fig. 15. Lasioglossum (Hemihalictus) tomentosum sp. nov., holotype, ♀ (SEMC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 15. Lasioglossum (Hemihalictus) tomentosum sp. nov., holotype, ♀ (SEMC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFEBFFDAFE6EFBBCFDEFFD4F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098531/files/figure.png	https://doi.org/10.5281/zenodo.22098531	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFEBFFDAFE6EFBBCFDEFFD4F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098536/files/figure.png	https://doi.org/10.5281/zenodo.22098536	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFEBFFDAFE6EFBBCFDEFFD4F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098543/files/figure.png	https://doi.org/10.5281/zenodo.22098543	Fig. 13. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), ♀♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 13. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), ♀♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFEBFFDAFE6EFBBCFDEFFD4F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098545/files/figure.png	https://doi.org/10.5281/zenodo.22098545	Fig. 14. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), holotype, ♀ (USNM Type No. 10930). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 14. Lasioglossum (Hemihalictus) arizonense (Crawford, 1907), holotype, ♀ (USNM Type No. 10930). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFEBFFDAFE6EFBBCFDEFFD4F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098551/files/figure.png	https://doi.org/10.5281/zenodo.22098551	Fig. 16. Distribution map of four species in Lasioglossum (Hemihalictus) arizonense group: L. absurdiceps (Timberlake, 1960) (red dots), L. arizonense (Crawford, 1907) (blue dots), L. tomentosum sp. nov. (yellow dots), and L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (green dots). Note: holotype locations are marked with stars inside dots; however, the blue dot with star is centrally placed, as holotype location is only known as Arizona. Produced by Simplemappr (Shorthouse 2010).	Fig. 16. Distribution map of four species in Lasioglossum (Hemihalictus) arizonense group: L. absurdiceps (Timberlake, 1960) (red dots), L. arizonense (Crawford, 1907) (blue dots), L. tomentosum sp. nov. (yellow dots), and L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (green dots). Note: holotype locations are marked with stars inside dots; however, the blue dot with star is centrally placed, as holotype location is only known as Arizona. Produced by Simplemappr (Shorthouse 2010).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE7FFDDFE3FFD38FDE9FAC0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098531/files/figure.png	https://doi.org/10.5281/zenodo.22098531	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE7FFDDFE3FFD38FDE9FAC0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098536/files/figure.png	https://doi.org/10.5281/zenodo.22098536	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE7FFDDFE3FFD38FDE9FAC0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098547/files/figure.png	https://doi.org/10.5281/zenodo.22098547	Fig. 15. Lasioglossum (Hemihalictus) tomentosum sp. nov., holotype, ♀ (SEMC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 15. Lasioglossum (Hemihalictus) tomentosum sp. nov., holotype, ♀ (SEMC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE7FFDDFE3FFD38FDE9FAC0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098551/files/figure.png	https://doi.org/10.5281/zenodo.22098551	Fig. 16. Distribution map of four species in Lasioglossum (Hemihalictus) arizonense group: L. absurdiceps (Timberlake, 1960) (red dots), L. arizonense (Crawford, 1907) (blue dots), L. tomentosum sp. nov. (yellow dots), and L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (green dots). Note: holotype locations are marked with stars inside dots; however, the blue dot with star is centrally placed, as holotype location is only known as Arizona. Produced by Simplemappr (Shorthouse 2010).	Fig. 16. Distribution map of four species in Lasioglossum (Hemihalictus) arizonense group: L. absurdiceps (Timberlake, 1960) (red dots), L. arizonense (Crawford, 1907) (blue dots), L. tomentosum sp. nov. (yellow dots), and L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (green dots). Note: holotype locations are marked with stars inside dots; however, the blue dot with star is centrally placed, as holotype location is only known as Arizona. Produced by Simplemappr (Shorthouse 2010).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE7FFDDFE3FFD38FDE9FAC0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098751/files/figure.png	https://doi.org/10.5281/zenodo.22098751	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE7FFDDFE3FFD38FDE9FAC0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098753/files/figure.png	https://doi.org/10.5281/zenodo.22098753	Fig. 96. Head and mesosoma females of Lasioglossum (Hemihalictus) Cockerell, 1897 species showing tomentum density and colour. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev.	Fig. 96. Head and mesosoma females of Lasioglossum (Hemihalictus) Cockerell, 1897 species showing tomentum density and colour. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098531/files/figure.png	https://doi.org/10.5281/zenodo.22098531	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 9. Frons of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the frons was removed in B and C; in A and D, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098536/files/figure.png	https://doi.org/10.5281/zenodo.22098536	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	Fig. 10. Dorsal view of females of Lasioglossum (Hemihalictus) species. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. absurdiceps (Timberlake, 1960). C. L. tomentosum sp. nov. D. L. arizonense (Crawford, 1907). (Note: pilosity on the mesosoma was removed in C; in the remaining panels, specimens with reduced pilosity due to wear were selected to facilitate observation of integumental sculpture).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098553/files/figure.png	https://doi.org/10.5281/zenodo.22098553	Fig. 17. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀♀ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 17. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀♀ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098556/files/figure.png	https://doi.org/10.5281/zenodo.22098556	Fig. 18. Metasoma of Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀ ♀ (EMEC). A. light morph. B. Dark morph. Scale bar = 1 mm.	Fig. 18. Metasoma of Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., ♀ ♀ (EMEC). A. light morph. B. Dark morph. Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098558/files/figure.png	https://doi.org/10.5281/zenodo.22098558	Fig. 19. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., paratype, ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 19. Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., paratype, ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098560/files/figure.png	https://doi.org/10.5281/zenodo.22098560	Fig. 20. Genitalia of Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., paratype, ♂ (EMEC). A. Dorsal view. B. Ventral view.	Fig. 20. Genitalia of Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev., paratype, ♂ (EMEC). A. Dorsal view. B. Ventral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098562/files/figure.png	https://doi.org/10.5281/zenodo.22098562	Fig. 21. Georeferenced collection records of Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 21. Georeferenced collection records of Lasioglossum (Hemihalictus) vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098753/files/figure.png	https://doi.org/10.5281/zenodo.22098753	Fig. 96. Head and mesosoma females of Lasioglossum (Hemihalictus) Cockerell, 1897 species showing tomentum density and colour. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev.	Fig. 96. Head and mesosoma females of Lasioglossum (Hemihalictus) Cockerell, 1897 species showing tomentum density and colour. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098762/files/figure.png	https://doi.org/10.5281/zenodo.22098762	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098782/files/figure.png	https://doi.org/10.5281/zenodo.22098782	Fig. 107. Lateral view of heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in genal tomentum. A–B. Genal surface obscured by tomentum. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. subobscurum (Cockerell, 1895). C–D. Genal surface not obscured by tomentum. C. L. swenki (Crawford, 1906). D. L. fedorense (Crawford, 1906).	Fig. 107. Lateral view of heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in genal tomentum. A–B. Genal surface obscured by tomentum. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. subobscurum (Cockerell, 1895). C–D. Genal surface not obscured by tomentum. C. L. swenki (Crawford, 1906). D. L. fedorense (Crawford, 1906).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFE0FFE5FEE3FAA3FE06FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098551/files/figure.png	https://doi.org/10.5281/zenodo.22098551	Fig. 16. Distribution map of four species in Lasioglossum (Hemihalictus) arizonense group: L. absurdiceps (Timberlake, 1960) (red dots), L. arizonense (Crawford, 1907) (blue dots), L. tomentosum sp. nov. (yellow dots), and L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (green dots). Note: holotype locations are marked with stars inside dots; however, the blue dot with star is centrally placed, as holotype location is only known as Arizona. Produced by Simplemappr (Shorthouse 2010).	Fig. 16. Distribution map of four species in Lasioglossum (Hemihalictus) arizonense group: L. absurdiceps (Timberlake, 1960) (red dots), L. arizonense (Crawford, 1907) (blue dots), L. tomentosum sp. nov. (yellow dots), and L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. (green dots). Note: holotype locations are marked with stars inside dots; however, the blue dot with star is centrally placed, as holotype location is only known as Arizona. Produced by Simplemappr (Shorthouse 2010).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098564/files/figure.png	https://doi.org/10.5281/zenodo.22098564	Fig. 22. Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925), ♀ (UCR). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 22. Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925), ♀ (UCR). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098567/files/figure.png	https://doi.org/10.5281/zenodo.22098567	Fig. 23. Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925), ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 23. Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925), ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098571/files/figure.png	https://doi.org/10.5281/zenodo.22098571	Fig. 24. Metasoma of Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925). A–B. Light morphs of females (UCRC). C. Dark morph of female (UCRC). D. Light morph of male (UCRC). E. Dark morph of male (UCRC). Scale bar = 1 mm.	Fig. 24. Metasoma of Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925). A–B. Light morphs of females (UCRC). C. Dark morph of female (UCRC). D. Light morph of male (UCRC). E. Dark morph of male (UCRC). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098573/files/figure.png	https://doi.org/10.5281/zenodo.22098573	Fig. 25. Genitalia of Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925), ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 25. Genitalia of Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925), ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098575/files/figure.png	https://doi.org/10.5281/zenodo.22098575	Fig. 26. Georeferenced collection records of Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 26. Georeferenced collection records of Lasioglossum (Hemihalictus) aspilurus (Cockerell, 1925) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098751/files/figure.png	https://doi.org/10.5281/zenodo.22098751	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098758/files/figure.png	https://doi.org/10.5281/zenodo.22098758	Fig. 98. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrow indicates the hypoepimeron. A. L. sopinci (Crawford, 1932) – mesepisternum rugulose and impunctate. B. L. aspilurus (Cockerell, 1925) – mesepisternum rugulose and without distinct punctures, except the hypoepimeron, which is smooth and punctate. C. L. ovaliceps (Cockerell, 1898) – mesepisternum smooth with distinct punctures.	Fig. 98. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrow indicates the hypoepimeron. A. L. sopinci (Crawford, 1932) – mesepisternum rugulose and impunctate. B. L. aspilurus (Cockerell, 1925) – mesepisternum rugulose and without distinct punctures, except the hypoepimeron, which is smooth and punctate. C. L. ovaliceps (Cockerell, 1898) – mesepisternum smooth with distinct punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098802/files/figure.png	https://doi.org/10.5281/zenodo.22098802	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098836/files/figure.png	https://doi.org/10.5281/zenodo.22098836	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD8FFECFE17FE86FC15FADB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098578/files/figure.png	https://doi.org/10.5281/zenodo.22098578	Fig. 27. Lasioglossum (Hemihalictus) buccale (Pérez, 1903), ♀ (WRME). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 27. Lasioglossum (Hemihalictus) buccale (Pérez, 1903), ♀ (WRME). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098580/files/figure.png	https://doi.org/10.5281/zenodo.22098580	Fig. 28. Lasioglossum (Hemihalictus) buccale (Pérez, 1903), ♂ (OSAC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 28. Lasioglossum (Hemihalictus) buccale (Pérez, 1903), ♂ (OSAC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098584/files/figure.png	https://doi.org/10.5281/zenodo.22098584	Fig. 29. Genitalia of Lasioglossum (Hemihalictus) buccale (Pérez, 1903), ♂ (OSAC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 29. Genitalia of Lasioglossum (Hemihalictus) buccale (Pérez, 1903), ♂ (OSAC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098587/files/figure.png	https://doi.org/10.5281/zenodo.22098587	Fig. 30. Georeferenced collection records of Lasioglossum (Hemihalictus) buccale (Pérez, 1903) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 30. Georeferenced collection records of Lasioglossum (Hemihalictus) buccale (Pérez, 1903) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098751/files/figure.png	https://doi.org/10.5281/zenodo.22098751	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098756/files/figure.png	https://doi.org/10.5281/zenodo.22098756	Fig. 97. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species, highlighting pronotal angle (outlined in top left corner of each panel). A–B. Species with pronotal angle ~ 90 degrees. A. L. pectinatum (Robertson, 1890). B. L. sopinci (Crawford, 1932). C–E. Species with pronotal angle obtuse. C. L. opata sp. nov. D. L. angustius (Cockerell, 1897). E. L. buccale (Pérez, 1903).	Fig. 97. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species, highlighting pronotal angle (outlined in top left corner of each panel). A–B. Species with pronotal angle ~ 90 degrees. A. L. pectinatum (Robertson, 1890). B. L. sopinci (Crawford, 1932). C–E. Species with pronotal angle obtuse. C. L. opata sp. nov. D. L. angustius (Cockerell, 1897). E. L. buccale (Pérez, 1903).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098802/files/figure.png	https://doi.org/10.5281/zenodo.22098802	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098824/files/figure.png	https://doi.org/10.5281/zenodo.22098824	Fig. 116. Antenna of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing the relative lengths of the pedicel, flagellomere 1, and flagellomere 2 (arrows). A. L. diatretum (Vachal, 1904) – long. B. L. buccale (Pérez, 1903) – short.	Fig. 116. Antenna of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing the relative lengths of the pedicel, flagellomere 1, and flagellomere 2 (arrows). A. L. diatretum (Vachal, 1904) – long. B. L. buccale (Pérez, 1903) – short.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098836/files/figure.png	https://doi.org/10.5281/zenodo.22098836	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFD1FFF1FE35FAB5FD92F956.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFCCFFF9FDDFF936FC51FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098591/files/figure.png	https://doi.org/10.5281/zenodo.22098591	Fig. 31. Lasioglossum (Hemihalictus) engleri sp. nov., holotype, ♀ (OSAC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 31. Lasioglossum (Hemihalictus) engleri sp. nov., holotype, ♀ (OSAC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFCCFFF9FDDFF936FC51FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098595/files/figure.png	https://doi.org/10.5281/zenodo.22098595	Fig. 32. Lasioglossum (Hemihalictus) engleri sp. nov., paratype, ♂ (CSCA). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 32. Lasioglossum (Hemihalictus) engleri sp. nov., paratype, ♂ (CSCA). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFCCFFF9FDDFF936FC51FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098597/files/figure.png	https://doi.org/10.5281/zenodo.22098597	Fig. 33. Genitalia of Lasioglossum (Hemihalictus) engleri sp. nov., ♂ (CSCA). A. Dorsal view. B. Ventral view. C. Lateral view. (note: one penis valve is broken).	Fig. 33. Genitalia of Lasioglossum (Hemihalictus) engleri sp. nov., ♂ (CSCA). A. Dorsal view. B. Ventral view. C. Lateral view. (note: one penis valve is broken).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFCCFFF9FDDFF936FC51FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098599/files/figure.png	https://doi.org/10.5281/zenodo.22098599	Fig. 34. Georeferenced collection records of Lasioglossum (Hemihalictus) engleri sp. nov. (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 34. Georeferenced collection records of Lasioglossum (Hemihalictus) engleri sp. nov. (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFCCFFF9FDDFF936FC51FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098768/files/figure.png	https://doi.org/10.5281/zenodo.22098768	Fig. 102. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the apical impressed area of T2. A. L. engleri sp. nov. – lacking coriarious microsculpture; metasomal hairs dense. B. L. macoupinense (Robertson, 1895) – with coriarious microsculpture; metasomal hairs sparse. Scale bars = 1 mm.	Fig. 102. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the apical impressed area of T2. A. L. engleri sp. nov. – lacking coriarious microsculpture; metasomal hairs dense. B. L. macoupinense (Robertson, 1895) – with coriarious microsculpture; metasomal hairs sparse. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFCCFFF9FDDFF936FC51FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098828/files/figure.png	https://doi.org/10.5281/zenodo.22098828	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFCCFFF9FDDFF936FC51FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098836/files/figure.png	https://doi.org/10.5281/zenodo.22098836	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFCCFFF9FDDFF936FC51FEA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098601/files/figure.png	https://doi.org/10.5281/zenodo.22098601	Fig. 35. Lasioglossum (Hemihalictus) glabriventre (Crawford, 1907), ♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 35. Lasioglossum (Hemihalictus) glabriventre (Crawford, 1907), ♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098603/files/figure.png	https://doi.org/10.5281/zenodo.22098603	Fig. 36. Lasioglossum (Hemihalictus) glabriventre (Crawford, 1907), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 36. Lasioglossum (Hemihalictus) glabriventre (Crawford, 1907), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098605/files/figure.png	https://doi.org/10.5281/zenodo.22098605	Fig. 37. Genitalia of Lasioglossum (Hemihalictus) glabriventre (Crawford, 1907), ♂ (UCRC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 37. Genitalia of Lasioglossum (Hemihalictus) glabriventre (Crawford, 1907), ♂ (UCRC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098607/files/figure.png	https://doi.org/10.5281/zenodo.22098607	Fig. 38. Georeferenced collection records of Lasioglossum (Hemihalictus) glabriventre (Crawford, 1907) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 38. Georeferenced collection records of Lasioglossum (Hemihalictus) glabriventre (Crawford, 1907) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098743/files/figure.png	https://doi.org/10.5281/zenodo.22098743	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098766/files/figure.png	https://doi.org/10.5281/zenodo.22098766	Fig. 101. Variation in tegula among selected females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. glabriventre (Crawford, 1907) – elongate and punctate. B. L. glabriventre – variation showing fewer punctures and subtle shape differences. C. L. birkmanni (Crawford, 1906) – ovate and broadly impunctate. D. L. pectoraloides (Cockerell, 1895) – ovate and broadly impunctate.	Fig. 101. Variation in tegula among selected females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. glabriventre (Crawford, 1907) – elongate and punctate. B. L. glabriventre – variation showing fewer punctures and subtle shape differences. C. L. birkmanni (Crawford, 1906) – ovate and broadly impunctate. D. L. pectoraloides (Cockerell, 1895) – ovate and broadly impunctate.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098788/files/figure.png	https://doi.org/10.5281/zenodo.22098788	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098790/files/figure.png	https://doi.org/10.5281/zenodo.22098790	Fig. 110. Dorsal mesosoma views of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrows mark the anterior margin of the mesoscutum. A–B. Enlarged, broadly punctate tegula. A. L. kincaidii (Cockerell, 1898). B. L. glabriventre (Crawford, 1907). C–D. Normal, broadly impunctate tegula. C. L. pathiranae sp. nov. D. L. nelumbonis (Robertson, 1890).	Fig. 110. Dorsal mesosoma views of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrows mark the anterior margin of the mesoscutum. A–B. Enlarged, broadly punctate tegula. A. L. kincaidii (Cockerell, 1898). B. L. glabriventre (Crawford, 1907). C–D. Normal, broadly impunctate tegula. C. L. pathiranae sp. nov. D. L. nelumbonis (Robertson, 1890).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFC4FF83FE66FE87FD21F929.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098612/files/figure.png	https://doi.org/10.5281/zenodo.22098612	Fig. 39. Lasioglossum (Hemihalictus) diatretum (Vachal, 1904), ♀ (UCMC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 39. Lasioglossum (Hemihalictus) diatretum (Vachal, 1904), ♀ (UCMC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098614/files/figure.png	https://doi.org/10.5281/zenodo.22098614	Fig. 40. Dorsal view of mesosoma of female Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A. UCMC. B. USGS. C. OSAC. D. RSKM. E–F. EMEC. Scale bars = 1 mm.	Fig. 40. Dorsal view of mesosoma of female Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A. UCMC. B. USGS. C. OSAC. D. RSKM. E–F. EMEC. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098616/files/figure.png	https://doi.org/10.5281/zenodo.22098616	Fig. 41. Dorsal view of mesosoma of male Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A, D. EMEC. B–C, F. UCRC. E. PMAE. Scale bars = 1 mm.	Fig. 41. Dorsal view of mesosoma of male Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A, D. EMEC. B–C, F. UCRC. E. PMAE. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098618/files/figure.png	https://doi.org/10.5281/zenodo.22098618	Fig. 42. Lasioglossum (Hemihalictus) diatretum (Vachal, 1904), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 42. Lasioglossum (Hemihalictus) diatretum (Vachal, 1904), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098620/files/figure.png	https://doi.org/10.5281/zenodo.22098620	Fig. 43. Genitalia of Lasioglossum (Hemihalictus) diatretum (Vachal, 1904), ♂ (UCRC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 43. Genitalia of Lasioglossum (Hemihalictus) diatretum (Vachal, 1904), ♂ (UCRC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098622/files/figure.png	https://doi.org/10.5281/zenodo.22098622	Fig. 44. Georeferenced collection records of Lasioglossum (Hemihalictus) diatretum (Vachal, 1904) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 44. Georeferenced collection records of Lasioglossum (Hemihalictus) diatretum (Vachal, 1904) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098626/files/figure.png	https://doi.org/10.5281/zenodo.22098626	Fig. 45. Halictus supranitens Cockerell, 1919, syntype, ♀, junior synonym of L. diatretum (Vachal, 1904) (USNM Type No. 27999). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 45. Halictus supranitens Cockerell, 1919, syntype, ♀, junior synonym of L. diatretum (Vachal, 1904) (USNM Type No. 27999). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098824/files/figure.png	https://doi.org/10.5281/zenodo.22098824	Fig. 116. Antenna of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing the relative lengths of the pedicel, flagellomere 1, and flagellomere 2 (arrows). A. L. diatretum (Vachal, 1904) – long. B. L. buccale (Pérez, 1903) – short.	Fig. 116. Antenna of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing the relative lengths of the pedicel, flagellomere 1, and flagellomere 2 (arrows). A. L. diatretum (Vachal, 1904) – long. B. L. buccale (Pérez, 1903) – short.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098828/files/figure.png	https://doi.org/10.5281/zenodo.22098828	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098832/files/figure.png	https://doi.org/10.5281/zenodo.22098832	Fig. 118. A–B. Hind legs of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. diatretum (Vachal, 1904). B. L. ruficorne (Crawford, 1907). C–E. Dorso-lateral view of male abdomen. C. L. foxii (Robertson, 1895). D. L. diatretum. E. L. ruficorne. F–H. Line drawing showing T3–4 apical rim depression of the male abdomens. F. L. foxii. G. L. diatretum. H. L. ruficorne. I–K. Dorsal view of male abdomen. I. L. foxii. J. L. diatretum. K. L. ruficorne.	Fig. 118. A–B. Hind legs of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. diatretum (Vachal, 1904). B. L. ruficorne (Crawford, 1907). C–E. Dorso-lateral view of male abdomen. C. L. foxii (Robertson, 1895). D. L. diatretum. E. L. ruficorne. F–H. Line drawing showing T3–4 apical rim depression of the male abdomens. F. L. foxii. G. L. diatretum. H. L. ruficorne. I–K. Dorsal view of male abdomen. I. L. foxii. J. L. diatretum. K. L. ruficorne.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFB9FF99FDF8FE72FD7BFB52.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098614/files/figure.png	https://doi.org/10.5281/zenodo.22098614	Fig. 40. Dorsal view of mesosoma of female Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A. UCMC. B. USGS. C. OSAC. D. RSKM. E–F. EMEC. Scale bars = 1 mm.	Fig. 40. Dorsal view of mesosoma of female Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A. UCMC. B. USGS. C. OSAC. D. RSKM. E–F. EMEC. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098616/files/figure.png	https://doi.org/10.5281/zenodo.22098616	Fig. 41. Dorsal view of mesosoma of male Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A, D. EMEC. B–C, F. UCRC. E. PMAE. Scale bars = 1 mm.	Fig. 41. Dorsal view of mesosoma of male Lasioglossum (Hemihalictus) species. A–C. L. diatertum (Vachal, 1904). D–F. L. ruficorne (Crawford, 1907). A, D. EMEC. B–C, F. UCRC. E. PMAE. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098628/files/figure.png	https://doi.org/10.5281/zenodo.22098628	Fig. 46. Lasioglossum (Hemihalictus) ruficorne (Crawford, 1907), ♀ (UCMC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 46. Lasioglossum (Hemihalictus) ruficorne (Crawford, 1907), ♀ (UCMC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098630/files/figure.png	https://doi.org/10.5281/zenodo.22098630	Fig. 47. Lasioglossum (Hemihalictus) ruficorne (Crawford, 1907), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 47. Lasioglossum (Hemihalictus) ruficorne (Crawford, 1907), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098632/files/figure.png	https://doi.org/10.5281/zenodo.22098632	Fig. 48. Genitalia of Lasioglossum (Hemihalictus) ruficorne (Crawford, 1907), ♂ (PMAE). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 48. Genitalia of Lasioglossum (Hemihalictus) ruficorne (Crawford, 1907), ♂ (PMAE). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098634/files/figure.png	https://doi.org/10.5281/zenodo.22098634	Fig. 49. Georeferenced collection records of Lasioglossum (Hemihalictus) ruficorne (Crawford, 1907) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 49. Georeferenced collection records of Lasioglossum (Hemihalictus) ruficorne (Crawford, 1907) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098636/files/figure.png	https://doi.org/10.5281/zenodo.22098636	Fig. 50. Halictus pulveris Cockerell, 1930, syntype, ♀ (AMNH_IZC 00323614), junior synonym of Lasioglossum ruficorne (Crawford, 1907). A. Mesoscutum. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm. (photo credit: C.S. Smith, AMNH).	Fig. 50. Halictus pulveris Cockerell, 1930, syntype, ♀ (AMNH_IZC 00323614), junior synonym of Lasioglossum ruficorne (Crawford, 1907). A. Mesoscutum. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm. (photo credit: C.S. Smith, AMNH).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098639/files/figure.png	https://doi.org/10.5281/zenodo.22098639	Fig. 51. Halictus vaporellus Cockerell, 1910, syntype, ♀ (USNM Type No. 23324), junior synonym of Lasioglossum ruficorne (Crawford, 1907). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 51. Halictus vaporellus Cockerell, 1910, syntype, ♀ (USNM Type No. 23324), junior synonym of Lasioglossum ruficorne (Crawford, 1907). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098786/files/figure.png	https://doi.org/10.5281/zenodo.22098786	Fig. 108. T2–T3 of females of Lasioglossum (Hemihalictus) Cockerell, 1897; white line drawing shows the premarginal line of T1. A. L. ruficorne (Crawford, 1907). B. L. foxii (Robertson, 1895).	Fig. 108. T2–T3 of females of Lasioglossum (Hemihalictus) Cockerell, 1897; white line drawing shows the premarginal line of T1. A. L. ruficorne (Crawford, 1907). B. L. foxii (Robertson, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098788/files/figure.png	https://doi.org/10.5281/zenodo.22098788	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098832/files/figure.png	https://doi.org/10.5281/zenodo.22098832	Fig. 118. A–B. Hind legs of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. diatretum (Vachal, 1904). B. L. ruficorne (Crawford, 1907). C–E. Dorso-lateral view of male abdomen. C. L. foxii (Robertson, 1895). D. L. diatretum. E. L. ruficorne. F–H. Line drawing showing T3–4 apical rim depression of the male abdomens. F. L. foxii. G. L. diatretum. H. L. ruficorne. I–K. Dorsal view of male abdomen. I. L. foxii. J. L. diatretum. K. L. ruficorne.	Fig. 118. A–B. Hind legs of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. diatretum (Vachal, 1904). B. L. ruficorne (Crawford, 1907). C–E. Dorso-lateral view of male abdomen. C. L. foxii (Robertson, 1895). D. L. diatretum. E. L. ruficorne. F–H. Line drawing showing T3–4 apical rim depression of the male abdomens. F. L. foxii. G. L. diatretum. H. L. ruficorne. I–K. Dorsal view of male abdomen. I. L. foxii. J. L. diatretum. K. L. ruficorne.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FFA4FFAFFDF6FB32FB0BFDF7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF92FFB1FDCFFDD3FAF0F96E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098645/files/figure.png	https://doi.org/10.5281/zenodo.22098645	Fig. 52. Halictus (Evylaeus) synthyridis Cockerell 1906, paratype, ♀ (USNM Type No. 12048). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 52. Halictus (Evylaeus) synthyridis Cockerell 1906, paratype, ♀ (USNM Type No. 12048). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF92FFB1FDCFFDD3FAF0F96E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098647/files/figure.png	https://doi.org/10.5281/zenodo.22098647	Fig. 53. Genitalia of Lasioglossum (Hemihalictus) synthyridis (Cockerell, 1906), paratype, ♀ (USNM Type No. 12048). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 53. Genitalia of Lasioglossum (Hemihalictus) synthyridis (Cockerell, 1906), paratype, ♀ (USNM Type No. 12048). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF92FFB1FDCFFDD3FAF0F96E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098828/files/figure.png	https://doi.org/10.5281/zenodo.22098828	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF92FFB1FDCFFDD3FAF0F96E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF8CFFB4FDC4F95EFBD0FB4D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098654/files/figure.png	https://doi.org/10.5281/zenodo.22098654	Fig. 54. Lasioglossum (Hemihalictus) opata sp. nov., holotype, ♀ (EMEC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 54. Lasioglossum (Hemihalictus) opata sp. nov., holotype, ♀ (EMEC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF8CFFB4FDC4F95EFBD0FB4D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098656/files/figure.png	https://doi.org/10.5281/zenodo.22098656	Fig. 55. Distribution map of Lasioglossum (Hemihalictus) opata sp. nov. Produced by Simplemappr (Shorthouse 2010).	Fig. 55. Distribution map of Lasioglossum (Hemihalictus) opata sp. nov. Produced by Simplemappr (Shorthouse 2010).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF8CFFB4FDC4F95EFBD0FB4D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098743/files/figure.png	https://doi.org/10.5281/zenodo.22098743	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF8CFFB4FDC4F95EFBD0FB4D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098756/files/figure.png	https://doi.org/10.5281/zenodo.22098756	Fig. 97. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species, highlighting pronotal angle (outlined in top left corner of each panel). A–B. Species with pronotal angle ~ 90 degrees. A. L. pectinatum (Robertson, 1890). B. L. sopinci (Crawford, 1932). C–E. Species with pronotal angle obtuse. C. L. opata sp. nov. D. L. angustius (Cockerell, 1897). E. L. buccale (Pérez, 1903).	Fig. 97. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species, highlighting pronotal angle (outlined in top left corner of each panel). A–B. Species with pronotal angle ~ 90 degrees. A. L. pectinatum (Robertson, 1890). B. L. sopinci (Crawford, 1932). C–E. Species with pronotal angle obtuse. C. L. opata sp. nov. D. L. angustius (Cockerell, 1897). E. L. buccale (Pérez, 1903).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF8CFFB4FDC4F95EFBD0FB4D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF8CFFB4FDC4F95EFBD0FB4D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098779/files/figure.png	https://doi.org/10.5281/zenodo.22098779	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098658/files/figure.png	https://doi.org/10.5281/zenodo.22098658	Fig. 56. Lasioglossum (Hemihalictus) ovaliceps (Cockerell, 1898), ♀. A–C. EMEC. D. EMEC. A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 56. Lasioglossum (Hemihalictus) ovaliceps (Cockerell, 1898), ♀. A–C. EMEC. D. EMEC. A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098660/files/figure.png	https://doi.org/10.5281/zenodo.22098660	Fig. 57. Lasioglossum (Hemihalictus) ovaliceps (Cockerell, 1898), ♂ (UCRC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 57. Lasioglossum (Hemihalictus) ovaliceps (Cockerell, 1898), ♂ (UCRC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098662/files/figure.png	https://doi.org/10.5281/zenodo.22098662	Fig. 58. Genitalia of Lasioglossum (Hemihalictus) ovaliceps (Cockerell, 1898), ♂ (UCRC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 58. Genitalia of Lasioglossum (Hemihalictus) ovaliceps (Cockerell, 1898), ♂ (UCRC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098664/files/figure.png	https://doi.org/10.5281/zenodo.22098664	Fig. 59. Georeferenced collection records of Lasioglossum (Hemihalictus) ovaliceps (Cockerell, 1898) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 59. Georeferenced collection records of Lasioglossum (Hemihalictus) ovaliceps (Cockerell, 1898) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098751/files/figure.png	https://doi.org/10.5281/zenodo.22098751	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098758/files/figure.png	https://doi.org/10.5281/zenodo.22098758	Fig. 98. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrow indicates the hypoepimeron. A. L. sopinci (Crawford, 1932) – mesepisternum rugulose and impunctate. B. L. aspilurus (Cockerell, 1925) – mesepisternum rugulose and without distinct punctures, except the hypoepimeron, which is smooth and punctate. C. L. ovaliceps (Cockerell, 1898) – mesepisternum smooth with distinct punctures.	Fig. 98. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species; white arrow indicates the hypoepimeron. A. L. sopinci (Crawford, 1932) – mesepisternum rugulose and impunctate. B. L. aspilurus (Cockerell, 1925) – mesepisternum rugulose and without distinct punctures, except the hypoepimeron, which is smooth and punctate. C. L. ovaliceps (Cockerell, 1898) – mesepisternum smooth with distinct punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098802/files/figure.png	https://doi.org/10.5281/zenodo.22098802	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098836/files/figure.png	https://doi.org/10.5281/zenodo.22098836	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF88FF41FE17FEE2FAA3FD73.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098666/files/figure.png	https://doi.org/10.5281/zenodo.22098666	Fig. 60. Lasioglossum (Hemihalictus) angusticulum sp. nov., holotype, ♀ (CAS GIBBS-14439). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 60. Lasioglossum (Hemihalictus) angusticulum sp. nov., holotype, ♀ (CAS GIBBS-14439). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098668/files/figure.png	https://doi.org/10.5281/zenodo.22098668	Fig. 61. Lasioglossum (Hemihalictus) angusticulum sp. nov., paratype, ♂ (ASUHIC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 61. Lasioglossum (Hemihalictus) angusticulum sp. nov., paratype, ♂ (ASUHIC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098670/files/figure.png	https://doi.org/10.5281/zenodo.22098670	Fig. 62. Genitalia of Lasioglossum (Hemihalictus) angusticulum sp. nov., ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 62. Genitalia of Lasioglossum (Hemihalictus) angusticulum sp. nov., ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098676/files/figure.png	https://doi.org/10.5281/zenodo.22098676	Fig. 63. Georeferenced collection records of Lasioglossum (Hemihalictus) angusticulum sp. nov. (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 63. Georeferenced collection records of Lasioglossum (Hemihalictus) angusticulum sp. nov. (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098775/files/figure.png	https://doi.org/10.5281/zenodo.22098775	Fig. 105. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897; inset boxes highlight mesoscutal punctation, ‘doubly punctate’ refers to the presence of two distinct puncture sizes – large punctures intermixed with minute punctures. A. L. angusticulum sp. nov. – mesoscutum mostly polished and with a distinctly double punctation. B. L. angustius (Cockerell, 1897) – mesoscutum imbricate without a distinct double punctation.	Fig. 105. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897; inset boxes highlight mesoscutal punctation, ‘doubly punctate’ refers to the presence of two distinct puncture sizes – large punctures intermixed with minute punctures. A. L. angusticulum sp. nov. – mesoscutum mostly polished and with a distinctly double punctation. B. L. angustius (Cockerell, 1897) – mesoscutum imbricate without a distinct double punctation.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098779/files/figure.png	https://doi.org/10.5281/zenodo.22098779	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098788/files/figure.png	https://doi.org/10.5281/zenodo.22098788	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098806/files/figure.png	https://doi.org/10.5281/zenodo.22098806	Fig. 113. Pronotal dorsolateral ridge of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. pectorale (Smith, 1853) – smoothly rounded. B. L. angusticulum sp. nov. – sharply angled. Note: panels are shown at slightly different viewing angles.	Fig. 113. Pronotal dorsolateral ridge of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. pectorale (Smith, 1853) – smoothly rounded. B. L. angusticulum sp. nov. – sharply angled. Note: panels are shown at slightly different viewing angles.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098811/files/figure.png	https://doi.org/10.5281/zenodo.22098811	Fig. 114. T1 of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. pectorale (Smith, 1853) – anterior face lacking a fan, though scattered straight hairs are present. B. L. angusticulum sp. nov. – anterior face with a weak fan of overlapping, appressed hairs.	Fig. 114. T1 of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A. L. pectorale (Smith, 1853) – anterior face lacking a fan, though scattered straight hairs are present. B. L. angusticulum sp. nov. – anterior face with a weak fan of overlapping, appressed hairs.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF7FFF49FE36FD39FD64FDE2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF74FF4DFE6BFDCCFCE7FCE7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098678/files/figure.png	https://doi.org/10.5281/zenodo.22098678	Fig. 64. Lasioglossum (Hemihalictus) angustius (Cockerell, 1897), paralectotype, ♀ (USNM Type No. 3388). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 64. Lasioglossum (Hemihalictus) angustius (Cockerell, 1897), paralectotype, ♀ (USNM Type No. 3388). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF74FF4DFE6BFDCCFCE7FCE7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098680/files/figure.png	https://doi.org/10.5281/zenodo.22098680	Fig. 65. Georeferenced collection records of Lasioglossum (Hemihalictus) angustius (Cockerell, 1897) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 65. Georeferenced collection records of Lasioglossum (Hemihalictus) angustius (Cockerell, 1897) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF74FF4DFE6BFDCCFCE7FCE7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098743/files/figure.png	https://doi.org/10.5281/zenodo.22098743	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF74FF4DFE6BFDCCFCE7FCE7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098756/files/figure.png	https://doi.org/10.5281/zenodo.22098756	Fig. 97. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species, highlighting pronotal angle (outlined in top left corner of each panel). A–B. Species with pronotal angle ~ 90 degrees. A. L. pectinatum (Robertson, 1890). B. L. sopinci (Crawford, 1932). C–E. Species with pronotal angle obtuse. C. L. opata sp. nov. D. L. angustius (Cockerell, 1897). E. L. buccale (Pérez, 1903).	Fig. 97. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species, highlighting pronotal angle (outlined in top left corner of each panel). A–B. Species with pronotal angle ~ 90 degrees. A. L. pectinatum (Robertson, 1890). B. L. sopinci (Crawford, 1932). C–E. Species with pronotal angle obtuse. C. L. opata sp. nov. D. L. angustius (Cockerell, 1897). E. L. buccale (Pérez, 1903).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF74FF4DFE6BFDCCFCE7FCE7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF74FF4DFE6BFDCCFCE7FCE7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098775/files/figure.png	https://doi.org/10.5281/zenodo.22098775	Fig. 105. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897; inset boxes highlight mesoscutal punctation, ‘doubly punctate’ refers to the presence of two distinct puncture sizes – large punctures intermixed with minute punctures. A. L. angusticulum sp. nov. – mesoscutum mostly polished and with a distinctly double punctation. B. L. angustius (Cockerell, 1897) – mesoscutum imbricate without a distinct double punctation.	Fig. 105. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897; inset boxes highlight mesoscutal punctation, ‘doubly punctate’ refers to the presence of two distinct puncture sizes – large punctures intermixed with minute punctures. A. L. angusticulum sp. nov. – mesoscutum mostly polished and with a distinctly double punctation. B. L. angustius (Cockerell, 1897) – mesoscutum imbricate without a distinct double punctation.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF74FF4DFE6BFDCCFCE7FCE7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098779/files/figure.png	https://doi.org/10.5281/zenodo.22098779	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF70FF5CFE12FCC1FC7AFAD9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22212836/files/figure.png	https://doi.org/10.5281/zenodo.22212836	Fig. 66 Lasioglossum (Hemihalictus) kincaidii (Cockerell, 1898), ♀ (OSAC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 66 Lasioglossum (Hemihalictus) kincaidii (Cockerell, 1898), ♀ (OSAC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF70FF5CFE12FCC1FC7AFAD9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098682/files/figure.png	https://doi.org/10.5281/zenodo.22098682	Fig. 67. Lasioglossum (Hemihalictus) kincaidii (Cockerell, 1898), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 67. Lasioglossum (Hemihalictus) kincaidii (Cockerell, 1898), ♂ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF70FF5CFE12FCC1FC7AFAD9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098684/files/figure.png	https://doi.org/10.5281/zenodo.22098684	Fig. 68. Genitalia of Lasioglossum (Hemihalictus) kincaidii (Cockerell, 1898), ♂ (UCRC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 68. Genitalia of Lasioglossum (Hemihalictus) kincaidii (Cockerell, 1898), ♂ (UCRC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF70FF5CFE12FCC1FC7AFAD9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098686/files/figure.png	https://doi.org/10.5281/zenodo.22098686	Fig. 69. Georeferenced collection records of Lasioglossum (Hemihalictus) kincaidii (Cockerell, 1898) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 69. Georeferenced collection records of Lasioglossum (Hemihalictus) kincaidii (Cockerell, 1898) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF70FF5CFE12FCC1FC7AFAD9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098688/files/figure.png	https://doi.org/10.5281/zenodo.22098688	Fig. 70. Lasioglossum (Hemihalictus) pathiranae sp. nov., holotype, ♀ (LACM). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 70. Lasioglossum (Hemihalictus) pathiranae sp. nov., holotype, ♀ (LACM). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098690/files/figure.png	https://doi.org/10.5281/zenodo.22098690	Fig. 71. Lasioglossum (Hemihalictus) pathiranae sp. nov., paratype, ♂ (ASUHIC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 71. Lasioglossum (Hemihalictus) pathiranae sp. nov., paratype, ♂ (ASUHIC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098692/files/figure.png	https://doi.org/10.5281/zenodo.22098692	Fig. 72. Genitalia of Lasioglossum (Hemihalictus) pathiranae sp. nov., ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 72. Genitalia of Lasioglossum (Hemihalictus) pathiranae sp. nov., ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098694/files/figure.png	https://doi.org/10.5281/zenodo.22098694	Fig. 73. Georeferenced collection records of Lasioglossum (Hemihalictus) pathiranae sp. nov. (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 73. Georeferenced collection records of Lasioglossum (Hemihalictus) pathiranae sp. nov. (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098751/files/figure.png	https://doi.org/10.5281/zenodo.22098751	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	Fig. 95. Heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–C. Species with dense facial tomentum. A. L. tomentosum sp. nov. B. L. absurdiceps (Timberlake, 1960) C. L. swenki (Crawford, 1906). D–H. Species without obvious facial tomentum. D. L. sopinci (Crawford, 1932). E. L. aspilurus (Cockerell, 1925). F. L. ovaliceps (Cockerell, 1898). G. L. pathiranae sp. nov. H. L. pectinatum (Robertson, 1890). I. L. buccale (Pérez, 1903). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098770/files/figure.png	https://doi.org/10.5281/zenodo.22098770	Fig. 103. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–B. Metasoma with basal patches. A. L. pathiranae sp. nov. B. L. subobscurum (Cockerell, 1895). C. Metasoma without basal patches, L. foxii (Robertson, 1895).	Fig. 103. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–B. Metasoma with basal patches. A. L. pathiranae sp. nov. B. L. subobscurum (Cockerell, 1895). C. Metasoma without basal patches, L. foxii (Robertson, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098796/files/figure.png	https://doi.org/10.5281/zenodo.22098796	Fig. 111. Propodeum of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture; white arrows mark the apical carina. A–B. Apical carina prominently raised. A. L. nelumbonis (Robertson, 1890). B. L. pathiranae sp. nov. C. Apical carina not distinctly raised, L. pectoraloides (Cockerell, 1895).	Fig. 111. Propodeum of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture; white arrows mark the apical carina. A–B. Apical carina prominently raised. A. L. nelumbonis (Robertson, 1890). B. L. pathiranae sp. nov. C. Apical carina not distinctly raised, L. pectoraloides (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098802/files/figure.png	https://doi.org/10.5281/zenodo.22098802	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF61FF63FE27FA8AFE3EFDEB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098696/files/figure.png	https://doi.org/10.5281/zenodo.22098696	Fig. 74. Lasioglossum (Hemihalictus) pectoraloides (Cockerell, 1895), ♀. A–B, D. ASUHIC. C. UCMC. A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 74. Lasioglossum (Hemihalictus) pectoraloides (Cockerell, 1895), ♀. A–B, D. ASUHIC. C. UCMC. A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098698/files/figure.png	https://doi.org/10.5281/zenodo.22098698	Fig. 75. Lasioglossum (Hemihalictus) pectoraloides (Cockerell, 1895), ♂ (ASUHIC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 75. Lasioglossum (Hemihalictus) pectoraloides (Cockerell, 1895), ♂ (ASUHIC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098700/files/figure.png	https://doi.org/10.5281/zenodo.22098700	Fig. 76. Genitalia of Lasioglossum (Hemihalictus) pectoraloides (Cockerell, 1895), ♂ (EMEC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 76. Genitalia of Lasioglossum (Hemihalictus) pectoraloides (Cockerell, 1895), ♂ (EMEC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098702/files/figure.png	https://doi.org/10.5281/zenodo.22098702	Fig. 77. Georeferenced collection records of Lasioglossum (Hemihalictus) pectoraloides (Cockerell, 1895) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 77. Georeferenced collection records of Lasioglossum (Hemihalictus) pectoraloides (Cockerell, 1895) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098743/files/figure.png	https://doi.org/10.5281/zenodo.22098743	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 93. Mesepisternal sculpturing in females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout. B. L. opata sp. nov. – rugulose, becoming strigate-rugulose anteroventrally. C. L. angustius (Cockerell, 1897) – reticulate-rugose, rugose ventrally. D. L. pectoraloides (Cockerell, 1895) – partially rugose but polished with distinctive punctures (white arrow). E. L. birkmanni (Crawford, 1906) – smooth with distinctive punctures. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098766/files/figure.png	https://doi.org/10.5281/zenodo.22098766	Fig. 101. Variation in tegula among selected females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. glabriventre (Crawford, 1907) – elongate and punctate. B. L. glabriventre – variation showing fewer punctures and subtle shape differences. C. L. birkmanni (Crawford, 1906) – ovate and broadly impunctate. D. L. pectoraloides (Cockerell, 1895) – ovate and broadly impunctate.	Fig. 101. Variation in tegula among selected females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. glabriventre (Crawford, 1907) – elongate and punctate. B. L. glabriventre – variation showing fewer punctures and subtle shape differences. C. L. birkmanni (Crawford, 1906) – ovate and broadly impunctate. D. L. pectoraloides (Cockerell, 1895) – ovate and broadly impunctate.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098788/files/figure.png	https://doi.org/10.5281/zenodo.22098788	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	Fig. 109. Mesepisternal sculpturing in males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pectorale (Smith, 1853) – coarsely rugose throughout and impunctate. B. L. kincaidii (Cockerell, 1898) – coarsely rugose throughout and impunctate. C. L. pectoraloides (Cockerell, 1895) – mostly rugose with distinctive punctures (appearing smoother in some specimens). D. L. angusticulum sp. nov. – reticulate-rugose, impunctate. E. L. ruficorne (Crawford, 1907) – rugulose/reticulate-punctate, imbricate ventrally. F. L. glabriventre (Crawford, 1907) – smooth with distinctive punctures.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098796/files/figure.png	https://doi.org/10.5281/zenodo.22098796	Fig. 111. Propodeum of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture; white arrows mark the apical carina. A–B. Apical carina prominently raised. A. L. nelumbonis (Robertson, 1890). B. L. pathiranae sp. nov. C. Apical carina not distinctly raised, L. pectoraloides (Cockerell, 1895).	Fig. 111. Propodeum of males of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture; white arrows mark the apical carina. A–B. Apical carina prominently raised. A. L. nelumbonis (Robertson, 1890). B. L. pathiranae sp. nov. C. Apical carina not distinctly raised, L. pectoraloides (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF5EFF6CFE7FFDC4FCD0FC07.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF51FF70FE6AFBE1FDB9FB53.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098704/files/figure.png	https://doi.org/10.5281/zenodo.22098704	Fig. 78. Lasioglossum (Hemihalictus) robertsoni (Crawford, 1906), syntype, ♀ (USNM Type No. 12039). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 78. Lasioglossum (Hemihalictus) robertsoni (Crawford, 1906), syntype, ♀ (USNM Type No. 12039). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF51FF70FE6AFBE1FDB9FB53.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098713/files/figure.png	https://doi.org/10.5281/zenodo.22098713	Fig. 79. Distribution map of Lasioglossum (Hemihalictus) robertsoni (Crawford, 1906) (red dots) and potential new species closely related to L. robertsoni (blue triangles). Note: Holotype location is marked with stars inside dots. Produced by Simplemappr (Shorthouse 2010).	Fig. 79. Distribution map of Lasioglossum (Hemihalictus) robertsoni (Crawford, 1906) (red dots) and potential new species closely related to L. robertsoni (blue triangles). Note: Holotype location is marked with stars inside dots. Produced by Simplemappr (Shorthouse 2010).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF51FF70FE6AFBE1FDB9FB53.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098773/files/figure.png	https://doi.org/10.5281/zenodo.22098773	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	Fig. 104. Propodeum of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in propodeal triangle sculpture. A–I. Propodeal triangle posterior margin with an apical carina. A.L. pathiranae sp. nov. B. L. robertsoni (Crawford, 1906). C. L. nelumbonis (Robertson, 1890). D. L. kincaidii (Cockerell, 1898). E. L. angusticulum sp. nov. F. L. angustius (Cockerell, 1897). G. L. pectoraloides (Cockerell, 1895). H. L. opata sp. nov. I. L. sopinci (Crawford, 1932). J–L. Propodeal triangle posterior margin smoothly rounded without an apical carina. J. L. swenki (Crawford, 1906). K. L. aspilurus (Cockerell, 1925). L. L. ovaliceps (Cockerell, 1898). A–F, K. Propodeal triangle with rugae clearly reaching posterior margin. G–I. Propodeal triangle with rugae appears reaching posterior margin medially.. H, J, L. Propodeal triangle with rugae not reaching posterior margin. White arrows indicate the posterior surface of the propodeum, showing the presence or absence of dense appressed tomentum. Yellow arrow indicates the apical carina.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF51FF70FE6AFBE1FDB9FB53.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098779/files/figure.png	https://doi.org/10.5281/zenodo.22098779	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4DFF76FE13FB3CFEE0F940.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098715/files/figure.png	https://doi.org/10.5281/zenodo.22098715	Fig. 80. Lasioglossum (Hemihalictus) sequoiae (Michener, 1936), ♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 80. Lasioglossum (Hemihalictus) sequoiae (Michener, 1936), ♀ (UCRC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4DFF76FE13FB3CFEE0F940.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098717/files/figure.png	https://doi.org/10.5281/zenodo.22098717	Fig. 81. Lasioglossum (Hemihalictus) sequoiae (Michener, 1936), ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 81. Lasioglossum (Hemihalictus) sequoiae (Michener, 1936), ♂ (EMEC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4DFF76FE13FB3CFEE0F940.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098719/files/figure.png	https://doi.org/10.5281/zenodo.22098719	Fig. 82. Genitalia of Lasioglossum (Hemihalictus) sequoiae (Michener, 1936), ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 82. Genitalia of Lasioglossum (Hemihalictus) sequoiae (Michener, 1936), ♂ (CAS). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4DFF76FE13FB3CFEE0F940.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098721/files/figure.png	https://doi.org/10.5281/zenodo.22098721	Fig. 83. Georeferenced collection records of Lasioglossum (Hemihalictus) sequoiae (Michener, 1936) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 83. Georeferenced collection records of Lasioglossum (Hemihalictus) sequoiae (Michener, 1936) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4DFF76FE13FB3CFEE0F940.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098762/files/figure.png	https://doi.org/10.5281/zenodo.22098762	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4DFF76FE13FB3CFEE0F940.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098779/files/figure.png	https://doi.org/10.5281/zenodo.22098779	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4DFF76FE13FB3CFEE0F940.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098828/files/figure.png	https://doi.org/10.5281/zenodo.22098828	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4DFF76FE13FB3CFEE0F940.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098723/files/figure.png	https://doi.org/10.5281/zenodo.22098723	Fig. 84. Lasioglossum (Hemihalictus) subobscurum (Cockerell, 1895), ♀ (EMEC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 84. Lasioglossum (Hemihalictus) subobscurum (Cockerell, 1895), ♀ (EMEC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098725/files/figure.png	https://doi.org/10.5281/zenodo.22098725	Fig. 85. Lasioglossum (Hemihalictus) subobscurum (Cockerell, 1895), ♂ (ASUHIC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 85. Lasioglossum (Hemihalictus) subobscurum (Cockerell, 1895), ♂ (ASUHIC). A. Dorsal habitus showing head and mesosoma. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098727/files/figure.png	https://doi.org/10.5281/zenodo.22098727	Fig. 86. Genitalia of Lasioglossum (Hemihalictus) subobscurum (Cockerell, 1895), ♂ (ASUHIC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 86. Genitalia of Lasioglossum (Hemihalictus) subobscurum (Cockerell, 1895), ♂ (ASUHIC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098731/files/figure.png	https://doi.org/10.5281/zenodo.22098731	Fig. 87. Georeferenced collection records of Lasioglossum (Hemihalictus) subobscurum (Cockerell, 1895) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 87. Georeferenced collection records of Lasioglossum (Hemihalictus) subobscurum (Cockerell, 1895) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098762/files/figure.png	https://doi.org/10.5281/zenodo.22098762	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098770/files/figure.png	https://doi.org/10.5281/zenodo.22098770	Fig. 103. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–B. Metasoma with basal patches. A. L. pathiranae sp. nov. B. L. subobscurum (Cockerell, 1895). C. Metasoma without basal patches, L. foxii (Robertson, 1895).	Fig. 103. Metasoma of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A–B. Metasoma with basal patches. A. L. pathiranae sp. nov. B. L. subobscurum (Cockerell, 1895). C. Metasoma without basal patches, L. foxii (Robertson, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098782/files/figure.png	https://doi.org/10.5281/zenodo.22098782	Fig. 107. Lateral view of heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in genal tomentum. A–B. Genal surface obscured by tomentum. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. subobscurum (Cockerell, 1895). C–D. Genal surface not obscured by tomentum. C. L. swenki (Crawford, 1906). D. L. fedorense (Crawford, 1906).	Fig. 107. Lateral view of heads of females of Lasioglossum (Hemihalictus) Cockerell, 1897 showing variation in genal tomentum. A–B. Genal surface obscured by tomentum. A. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. B. L. subobscurum (Cockerell, 1895). C–D. Genal surface not obscured by tomentum. C. L. swenki (Crawford, 1906). D. L. fedorense (Crawford, 1906).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098817/files/figure.png	https://doi.org/10.5281/zenodo.22098817	Fig. 115. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species in view showing the mandibles. A–D. Mandible elongate. A. L. absurdiceps (Timberlake, 1960). B. L. lustrans (Cockerell, 1897). C. L. pectinatum (Robertson, 1890). D. L. swenki (Crawford, 1906). E–F. Mandible short. E. L. villosulum (Kirby, 1802). F. L. subobscurum (Cockerell, 1895).	Fig. 115. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species in view showing the mandibles. A–D. Mandible elongate. A. L. absurdiceps (Timberlake, 1960). B. L. lustrans (Cockerell, 1897). C. L. pectinatum (Robertson, 1890). D. L. swenki (Crawford, 1906). E–F. Mandible short. E. L. villosulum (Kirby, 1802). F. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098828/files/figure.png	https://doi.org/10.5281/zenodo.22098828	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	Fig. 117. Propodeal triangle of males of Lasioglossum (Hemihalictus) Cockerell, 1897. A–D. Rugae reaching posterior margin. A. L. synthyridis (Cockerell, 1906). B. L. sequoiae (Michener, 1936). C–E. Rugae not reaching posterior margin. C. L. diatretum (Vachal, 1904). D. L. engleri sp. nov. E. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098836/files/figure.png	https://doi.org/10.5281/zenodo.22098836	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF4BFF7DFE71F923FB84FAD2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098733/files/figure.png	https://doi.org/10.5281/zenodo.22098733	Fig. 88. Lasioglossum (Hemihalictus) villosulum (Kirby, 1802), ♀ (OSAC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	Fig. 88. Lasioglossum (Hemihalictus) villosulum (Kirby, 1802), ♀ (OSAC). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. E. Metatibial spur. F. Protibial spur. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098735/files/figure.png	https://doi.org/10.5281/zenodo.22098735	Fig. 89. Lasioglossum (Hemihalictus) villosulum (Kirby, 1802), ♂ (WRME). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	Fig. 89. Lasioglossum (Hemihalictus) villosulum (Kirby, 1802), ♂ (WRME). A. Dorsal habitus. B. Face. C. Lateral habitus. D. Metasoma. Scale bars = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098737/files/figure.png	https://doi.org/10.5281/zenodo.22098737	Fig. 90. Genitalia of Lasioglossum (Hemihalictus) villosulum (Kirby, 1802), ♂ (OSAC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	Fig. 90. Genitalia of Lasioglossum (Hemihalictus) villosulum (Kirby, 1802), ♂ (OSAC). A. Dorsal view. B. Ventral view. C. Apical view. D. Lateral view.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098739/files/figure.png	https://doi.org/10.5281/zenodo.22098739	Fig. 91. Georeferenced collection records of Lasioglossum (Hemihalictus) villosulum (Kirby, 1802) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	Fig. 91. Georeferenced collection records of Lasioglossum (Hemihalictus) villosulum (Kirby, 1802) (black squares) and predicted distribution by maximum entropy ecological niche modeling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098762/files/figure.png	https://doi.org/10.5281/zenodo.22098762	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	Fig. 100. Dorsal mesosoma views of females of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. villosulum (Kirby, 1802). B. L. sequoiae (Michener, 1936). C. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. D. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098779/files/figure.png	https://doi.org/10.5281/zenodo.22098779	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	Fig. 106. T1 of females of Lasioglossum (Hemihalictus) Cockerell, 1897. A–B. Anterior face strongly coriarious with a very narrow dorsal opening on the fan. A. L. robertsoni (Crawford, 1906). B. L. opata sp. nov. C. Anterior face strongly coriarious with a very broad dorsal opening on the fan, L. angustius (Cockerell, 1897). D. Anterior face mostly polished with a very broad dorsal opening on the fan, L. angusticulum sp. nov. E. Anterior face polished with the fan, L. villosulum (Kirby, 1802). F. Anterior face polished without a fan, L. sequoiae (Michener, 1936).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098802/files/figure.png	https://doi.org/10.5281/zenodo.22098802	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	Fig. 112. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species. A. L. pathiranae sp. nov. B. L. nelumbonis (Robertson, 1890). C. L. buccale (Pérez, 1903). D. L. ovaliceps (Cockerell, 1898). E. L. aspilurus (Cockerell, 1925). F. L. villosulum (Kirby, 1802). Scale bar = 1 mm.	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098817/files/figure.png	https://doi.org/10.5281/zenodo.22098817	Fig. 115. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species in view showing the mandibles. A–D. Mandible elongate. A. L. absurdiceps (Timberlake, 1960). B. L. lustrans (Cockerell, 1897). C. L. pectinatum (Robertson, 1890). D. L. swenki (Crawford, 1906). E–F. Mandible short. E. L. villosulum (Kirby, 1802). F. L. subobscurum (Cockerell, 1895).	Fig. 115. Heads of males of Lasioglossum (Hemihalictus) Cockerell, 1897 species in view showing the mandibles. A–D. Mandible elongate. A. L. absurdiceps (Timberlake, 1960). B. L. lustrans (Cockerell, 1897). C. L. pectinatum (Robertson, 1890). D. L. swenki (Crawford, 1906). E–F. Mandible short. E. L. villosulum (Kirby, 1802). F. L. subobscurum (Cockerell, 1895).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098836/files/figure.png	https://doi.org/10.5281/zenodo.22098836	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	Fig. 119. Dorsal mesosoma of males of Lasioglossum (Hemihalictus) Cockerell, 1897; white arrows indicate the laterad side of the parapsidal line, and yellow arrows indicate the mesad side. A. L. ovaliceps (Cockerell, 1898). B. L. aspilurus (Cockerell, 1925). C. L. buccale (Pérez, 1903). D. L. subobscurum (Cockerell, 1895). E. L. engleri sp. nov. F. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF40FF04FEB3FABDFE76FE5F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098838/files/figure.png	https://doi.org/10.5281/zenodo.22098838	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	Fig. 120. Male genitalia of Lasioglossum (Hemihalictus) Cockerell, 1897 illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom of each figure, in lateral view, positioned parallel to the plane of vision. A–B. L. arizonense species group. A. L. absurdiceps (Timberlake, 1960). B. L. vanduzeei (Sandhouse & Cockerell, 1924) stat. rev. C. L. aspilurus (Cockerell, 1925). D. L. buccale (Pérez, 1903). E. L. engleri sp. nov. F. L. glabriventre (Crawford, 1907). G–I. L. nitidiusculum species group. G. L. diatretum (Vachal, 1904). H. L. ruficorne (Crawford, 1907). I. L. synthyridis (Cockerell, 1906). J. L. ovaliceps (Cockerell, 1898). K–N. L. pectorale species group. K. L. angusticulum sp. nov. L. L. kincaidii (Cockerell, 1898). M. L. pathiranae sp. nov. N. L. pectoraloides (Cockerell, 1895), O. L. sequoiae (Michener, 1936). P. L. subobscurum (Cockerell, 1895). Q. L. villosulum (Kirby, 1802).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
03EC87C3FF39FF05FE1FFE08FC19F8E0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/22098741/files/figure.png	https://doi.org/10.5281/zenodo.22098741	Fig. 92. Major geographic regions with species of Lasioglossum (Hemihalictus) Cockerell, 1897. Borders are intentionally blurred because the limits of these regions are approximate, and spillover near transition zones is well known. A. Cascadia (also including northern Great Basin). B. California. C. High desert (including southern Great Basin, Mojave Desert, and Colorado Plateau). D. Western low desert (including Sonoran Desert and western Chihuahuan Desert). E. Eastern low desert (including most of Chihuahuan Desert). F. Western Great Plains. G. Eastern. H. Southeastern. I. Neotropical. (Reproduced from Gardner & Gibbs 2023: fig. 77).	Fig. 92. Major geographic regions with species of Lasioglossum (Hemihalictus) Cockerell, 1897. Borders are intentionally blurred because the limits of these regions are approximate, and spillover near transition zones is well known. A. Cascadia (also including northern Great Basin). B. California. C. High desert (including southern Great Basin, Mojave Desert, and Colorado Plateau). D. Western low desert (including Sonoran Desert and western Chihuahuan Desert). E. Eastern low desert (including most of Chihuahuan Desert). F. Western Great Plains. G. Eastern. H. Southeastern. I. Neotropical. (Reproduced from Gardner & Gibbs 2023: fig. 77).	2026-08-20	Hettiarachchi, Thilina;Gibbs, Jason		Zenodo	biologists	Hettiarachchi, Thilina;Gibbs, Jason			
