Lasioglossum (Dialictus) ellisiae ( Sandhouse, 1924 )

Gardner, Joel & Gibbs, Jason, 2023, Revision of the Nearctic species of the Lasioglossum (Dialictus) gemmatum species complex (Hymenoptera: Halictidae), European Journal of Taxonomy 858 (1), pp. 1-222 : 61-70

Lasioglossum (Dialictus) ellisiae ( Sandhouse, 1924)

Figs 18–20 , 95B , 99A , 102B , 113B , 120A

Halictus (Chloralictus) ellisiae Sandhouse, 1924: 11 (holotype, ♀, deposited in USNM, type no. 26400, USNMENT01570255, examined).

Halictus hunteri Crawford, 1932: 72 (holotype, ♀, deposited in USNM, examined) syn. nov.

Halictus (Chloralictus) ellisiae – Graenicher 1927: 205 (comparative notes with lepidii).

Lasioglossum (Chloralictus) ellisiae – Michener 1951: 1113 (catalogue).

Lasioglossum (Chloralictus) hunteri – Michener 1951: 1114 (catalogue).

Dialictus tegularis – Mitchell 1960: 423 (in part, synonymy, redescription). — Hurd 1979: 1972 (in part, catalogue). — Moure & Hurd 1987: 134 (in part, catalogue).

Lasioglossum tegulare – Donovall & vanEngelsdorp 2010: 16 (in part, checklist).

Lasioglossum (Dialictus) tegulare – Krombein 1967: 466 (in part, catalogue).

Dialictus hunteri – Hurd 1979: 1966 (catalogue). — Moure & Hurd 1987: 104 (catalogue).

Lasioglossum (Dialictus) ellisiae – Gibbs 2009a: 18 (resurrection from synonymy, revision); 2010: 37, 45 (key to species), 120 (redescription); 2011: 25, 32 (key to species), 88 (review). — Wolf & Ascher 2009: 143 (checklist). — Gibbs et al. 2013: 80 (checklist). — Dibble et al. 2017: 13 (checklist). — Kilpatrick et al. 2020: 54 (checklist).

Diagnosis

Females of L. ellisiae have the tegula somewhat small (reaching and sometimes slightly exceeding posterior margin of mesoscutum in dorsal view), relatively sparsely punctate laterally at midlength (at least IS = 1 PD, up to IS = 1–3 PD), and inner posterior margin weakly concave, with a gentle S-shaped curve coming to a narrow rounded point posteriorly; mesepisternum punctures distinct, round, and about as fine and dense as those of hypoepimeron; metapostnotum shiny with coarse rugae reaching posterior margin; mesoscutum and mesepisternum usually shiny or with weak microsculpture; T1 anterior slope coriarious; T3 without subapical band of tomentum (rarely with some sparse tomentum apicolaterally); and tegula and metasoma sometimes red-orange.

Females of L. ellisiae are most similar to those of L. diabolicum sp. nov., L. gaudiale , L. indagator sp. nov., and L. tegulare . Females of L. diabolicum have the tegula slightly smaller (often not reaching posterior margin of mesoscutum in dorsal view) with inner posterior margin usually straight and metapostnotum usually dulled by strong microsculpture. Females of L. gaudiale have the T1 anterior slope shiny with microsculpture absent or very weak and the tegula inner posterior margin more strongly concave. Females of L. indagator have the metapostnotal rugae usually not reaching posterior margin and more extensive tomentum on the mesoscutum lateral and posterior margins, metanotum, and pleura. Females of L. tegulare have the mesoscutum and mesepisternum entirely dull with strong microsculpture and mesepisternum with crowded punctures (IS = 0 PD) some of which are not distinctly round. Some other species in the L. stictaspis species complex (particularly L. stictaspis s. str.) can also be very similar, but have the mesepisternum punctures larger and slightly sparser than those of hypoepimeron, mesoscutum more irregularly and sparsely punctate (as in L. diabolicum ), tegula inner posterior margin usually more strongly concave and usually more densely punctate (IS ≤ 1 PD), metapostnotum usually dull with fine rugae, and T3 usually with dense and complete subapical band of tomentum.

Males of L. ellisiae have the tegula somewhat small (as in the female); metapostnotum usually shiny with strong subparallel rugae; mesoscutum between parapsidal lines uniformly densely punctate (IS ≤ 1 PD); and discs of T2–T3 becoming more sparsely punctate on premarginal line, not contrasting with impunctate apical rims (punctures in basal half of T2–T3 may be deep and dense (IS ≤ 1 PD) or fine and moderately sparse (IS = 1–2 PD)).

Males of L. ellisiae are most similar to those of L. diabolicum sp. nov., L. lepidii , L. puteulanum , and L. tegulare . All of these species have the mesoscutum more irregularly and slightly more sparsely punctate between the parapsidal lines (some IS <1 PD and some IS = 1–2 PD). Males of L. diabolicum and L. lepidii have the disc of T2 uniformly finely and moderately sparsely punctate (IS = 1–2 PD). In direct comparison, males of L. lepidii also have the facial tomentum denser and more tightly appressed (more completely obscuring the surface underneath) and the mesothoracic spiracle more deeply impressed. Males of L. puteulanum and L. tegulare have the disc of T2 uniformly deeply and densely punctate (IS ≤ 1 PD) including the premarginal line. Some other species in the L. stictaspis species complex can also be very similar, but have the tegula slightly larger, with inner posterior margin more strongly concave, and more often entirely densely punctate (IS <1 PD) and mesoscutum more irregularly and sparsely punctate (as above).

Etymology

Sandhouse (1924) dedicated this species to her fellow bee taxonomist Marion Durbin Ellis.

Material examined

Holotype UNITED STATES – Massachusetts • 1 ♀; Forest Hills ; [42.29° N, 71.11° W]; 5 Aug. 1911; USNM 26400 .

Other material

CANADA – Manitoba • 1 ♀; Delta Beach along Hackberry Road, near Portage La Prairie ; 50.18585° N, 98.32591° W; 2–5 Aug. 2007; A.M. Patenaude leg.; WRME • 2 ♀♀; Hadashville ; 49.6761° N, 95.8984° W; 28 May 2019; K. Morgan and S. Shukla leg.; WRME 0419384 , 0419385 • 1 ♀; Portage La Prairie ; 49.93° N, 98.33° W; 27 Jun. 2018; E. Hanuschuk leg.; WRME 0390284 . – Ontario • 1 ♀; Haldimand-Norfolk Co., Nixon West Pr. ; [42.85° N, 80.4° W]; 11 May 1998; H. Douglas leg.; PCYU • 1 ♀; ibid.; 28 May 1998; H. Douglas leg.; PCYU • 1 ♀; Leamington ; [42.05° N, 82.6° W]; 17 Aug. 1987; T. D. Galloway leg.; WRME 0293748 • 1 ♀; Ottawa ; [45.42° N, 75.7° W]; 6 Aug. 1981; L. Masner leg.; TAMU-ENTO X1396609 • 1 ♂; ibid.; 6 Aug. 1981; L. Masner leg.; TAMU-ENTO X1383279 • 1 ♀; Pterophylla Plant Nursery ; 42.6401° N, 80.573° W; 13–22 Aug. 2006; P.J. Carson leg.; PCYU • 1 ♀; Toronto, Cedarvale Park ; 43.69° N, 79.42° W; 30 Aug. 2008; J. Gibbs and Y. Nozoe leg.; WRME 0427965 • 1 ♀; Toronto, Ulster Street ; 43.65898° N, 79.41332° W; Oct. 2006; J. Gibbs leg.; PCYU • 1 ♂; Toronto, York campus; 43.773° N, 79.506° W; 11 Aug. 2008; J. Gibbs leg.; WRME 0427964 .

MEXICO – Tamaulipas • 1 ♀; 8 mi. NE of San Fernando ; [24.93° N, 98.06° W]; 27 Aug. 1954; SEMC .

UNITED STATES – Colorado • 5 ♀♀; El Paso Co., Foster Ranch, T15 S R65 W Sec. 14 S1/2; [38.741° N, 104.637° W]; elev. 1737 m; 30 May 1976; F.M. Brown leg.; ex Cardaria ; UCMC • 2 ♀♀; ibid.; 26 Apr. 1977; F.M. Brown leg.; ex Cymopterus ; UCMC • 2 ♀♀; ibid.; 27 Apr. 1977; F.M. Brown leg.; ex Cymopterus ; UCMC • 2 ♀♀; ibid.; 3 May 1977; F.M. Brown leg.; ex Cymopterus ; UCMC • 1 ♀; ibid.; 31 May 1977; F.M. Brown leg.; ex Cardaria ; UCMC • 1 ♀; El Paso Co., Foster Ranch, T15 S R65 W Sec. 14 SW1/4; [38.741° N, 104.642° W]; elev. 1737 m; 29 May 1978; G.H. Kemper leg.; ex Cardaria ; UCMC • 3 ♀♀; El Paso Co., Foster Ranch, T15 S R65 W Sec. 22 NE1/4; [38.734° N, 104.651° W]; elev. 1737 m; 10 Jun. 1976; F.M. Brown leg.; ex Cardaria ; UCMC • 1 ♀; ibid.; 29 Apr. 1977; F.M. Brown leg.; ex dandelion; UCMC • 3 ♀♀; ibid.; 22 May 1977; F.M. Brown leg.; ex Cardaria ; UCMC • 3 ♀♀; ibid.; 22 May 1977; G.H. Kemper leg.; ex Cardaria ; UCMC • 1 ♀; ibid.; 31 May 1977; F.M. Brown leg.; ex dandelion; UCMC • 3 ♀♀; ibid.; 31 May 1977; F.M. Brown leg.; ex Cardaria ; UCMC • 2 ♀♀; ibid.; 14 Apr. 1978; F.M. Brown leg.; ex Lepidium ; UCMC • 2 ♀♀; ibid.; 24 Apr. 1978; F.M. Brown leg.; ex Lepidium ; UCMC • 1 ♀; ibid.; 26 Apr. 1978; F.M. Brown leg.; ex Prunus ; UCMC • 1 ♀; ibid.; 22 May 1978; F.M. Brown leg.; ex dandelion; UCMC • 2 ♀♀; ibid.; 22 May 1978; F.M. Brown leg.; ex Lepidium ; UCMC • 1 ♀; ibid.; 6 Jun. 1978; F.M. Brown leg.; ex Cardaria ; UCMC • 1 ♀; ibid.; 25 Jul. 1978; F.M. Brown leg.; ex Melilotus ; UCMC • 1 ♀; ibid.; 28 Jul. 1978; F.M. Brown leg.; ex Melilotus ; UCMC • 1 ♀; ibid.; 15 Aug. 1978; F.M. Brown leg.; ex Eriogonum effusum ; UCMC • 1 ♀; ibid.; 29 Sep. 1978; F.M. Brown leg.; ex Aster ; UCMC • 7 ♀♀; ibid.; 10 Jun. 1980; F.M. Brown leg.; ex Cardaria ; UCMC • 1 ♀; ibid.; 2 May 1981; F.M. Brown leg.; ex sandy stream bed; UCMC • 1 ♀; ibid.; 22 May 1981; F.M. Brown leg.; ex dandelion; CUIC • 1 ♀; ibid.; 22 May 1981; F.M. Brown leg.; ex dandelion; UCMC • 1 ♀; ibid.; 25 May 1981; F.M. Brown leg.; ex Cardaria ; UCMC • 1 ♀; ibid.; 25 May 1981; F.M. Brown leg.; UCMC • 9 ♀♀; El Paso Co., Foster Ranch, T15 S R65 W Sec. 23 N1/2; [38.734° N, 104.638° W]; elev. 1737 m; 13 Jun. 1976; F.M. Brown leg.; ex Cardaria ; UCMC • 2 ♀♀; ibid.; 10 May 1977; F.M. Brown leg.; ex dandelion; UCMC • 2 ♀♀; Logan Co.; 40.56755° N, 103.50417° W; 31 May 2012; M. Vandever et al. leg.; CSUC • 1 ♀; Logan Co.; 40.572° N, 103.54303° W; 14 Jun. 2012; M. Vandever et al. leg.; CSUC • 1 ♀; Logan Co.; 40.58675° N, 103.54398° W; 12 Jul. 2012; M. Vandever et al. leg.; CSUC • 1 ♀; Prowers Co., 1 mi. S of Granada ; [38.05° N, 102.31° W]; 28 Aug. 1963; N. and B. Marston leg.; AMNH • 1 ♀; Yuma Co., Bonny Dam State Recreation Area , 21 mi. N of Burlington; [39.61° N, 102.18° W]; 10 Jul. 1976; E. R. Hoebeke leg.; CUIC • 1 ♂; Boulder ; [40.01° N, 105.27° W]; 1 Aug. 1903; S.A. Rohwer leg.; UCMC • 2 ♀♀; Fort Lupton ; [40.08° N, 104.81° W]; 20 Jun. 1950; C.D. Michener leg.; ex Rorippa sinuata ; SEMC • 1 ♀; Julesburg ; 40.9833° N, 102.25° W; elev. 1055 m; 7 Jun. 1920; AMNH • 1 ♀; Lamar ; [38.09° N, 102.62° W]; 22 Jul. 1950; C.D. Michener leg.; ex Melilotus alba ; SEMC • 1 ♀; Logan City ; 40.58675° N, 103.54398° W; 12 Jul. 2012; M. Vandever et al. leg.; CSUC • 5 ♀♀; Regnier ; 37° N, 102.8333° W; elev. 1372 m; 6–9 Jun. 1919; AMNH . – Illinois • 3 ♀♀; Bureau Co., 3 mi. NW of La Moille ; [41.56° N, 89.32° W]; 13 May 1970; LaBerge and Molina leg.; ex Salix ; INHS • 1 ♀; Champaign Co., Brownfield Woods, Urbana ; [40.145° N, 88.165° W]; 29 Mar. 1968; LaBerge and Ribble leg.; INHS • 1 ♀; Kankakee Co., Hooper Branch ; [41.02° N, 87.54° W]; 2 Jul. 2003; R. P. Jean leg.; ex sumac; PCYU • 1 ♀; Lake Co., 2 mi. NW of Volo ; [42.35° N, 88.2° W]; 22 Jun. 1967; LaBerge and Ribble leg.; INHS • 1 ♀; Lake Co., Long Lake , bog; [42.37° N, 88.12° W]; 11 Aug. 1906; ex smartweed; INHS • 1 ♂; Macoupin Co., Plainview ; [39.16° N, 89.99° W]; 22 Jul. 1915; INHS • 1 ♀; Mason Co., Bath ; [40.19° N, 90.14° W]; 2 Jul. 1968; J.C. Marlin leg.; INHS • 1 ♀; Mason Co., Mason State Forest ; [40.39° N, 89.87° W]; 2 Jun. 1966; W.J. Knee leg.; INHS • 1 ♀; McHenry Co., Chain O’Lakes State Park ; [42.46° N, 88.19° W]; 22 Jun. 1967; LaBerge and Ribble leg.; INHS • 1 ♀; Whiteside Co., Morrison ; [41.81° N, 89.97° W]; 10 Jul. 1968; J.C. Marlin leg.; INHS • 1 ♀; Woodford Co., 9 mi. N of East Peoria ; [40.8° N, 89.58° W]; 7 Aug. 1968; J.C. Marlin leg.; INHS • 10 ♀♀; Algonquin ; [42.17° N, 88.29° W]; 16 Jun. 1909; Nason leg.; INHS • 2 ♀♀; ibid.; 24 Jun. 1909; Nason leg.; INHS . – Indiana • 1 ♀; Jackson Co.; 38.8799° N, 86.056° W; 26 Jul. 2003; S.W. Droege leg.; PCYU USGS-DRO 020992 • 2 ♀♀; Jasper Co., Nipsco ; [41.22° N, 87.03° W]; 16 Jul. 2003; R. P. Jean leg.; PCYU . – Iowa • 1 ♂; Allamakee Co., Weymiller Prairie , 12.5 km N of Lansing; 43.4542° N, 91.3036° W; elev. 323 m; 14 Aug. 2005; J. Krippel leg.; PCYU • 1 ♀; Hamilton Co., Union Pacific Railroad , 0.8 km S of Randall; 42.2228° N, 93.6° W; elev. 311 m; 18 May 2004; C. Hemsley leg.; PCYU • 1 ♀; Story Co.; 42.1138° N, 93.5856° W; 19 Jun. 2007; J. Hopwood leg.; PCYU • 1 ♀; Story Co.; 42.113° N, 93.5894° W; 31 Jul. 2007; J. Hopwood leg.; PCYU • 1 ♀; ibid.; 1 Aug. 2007; J. Hopwood leg.; PCYU • 1 ♂; Warren Co., 1.5 miles east of Hartford ; [41.46° N, 93.38° W]; 5–6 Jul. 1976; J.C. Schaffner leg.; TAMU-ENTO X1399456 . – Kansas • 1 ♀; Douglas Co., Lawrence vicinity; [38.96° N, 95.25° W]; 6 Jul. 1957; E. Ordway leg.; SEMC • 1 ♀; Haskell Co., 2 mi. SW of Satanta ; [37.42° N, 101.02° W]; 21 Aug. 1966; W.J. Hanson leg.; BBSL700690 • 1 ♀; 15 mi. W of Kalvesta ; [38.06° N, 100.56° W]; 12 Jun. 1952; Wille, Michener leg.; ex Melilotus officinalis ; SEMC • 1 ♂; Kinsley ; [37.92° N, 99.41° W]; 27 Jul. 1950; R. H. Beamer leg.; ex Euphorbia nuttallii ; SEMC • 3 ♀♀; Meade ; [37.29° N, 100.34° W]; 16 Jun. 1949; Michener, Beamer leg.; SEMC • 1 ♀; Pierceville ; [37.88° N, 100.68° W]; 11 Jun. 1952; Wille, Michener leg.; ex Thelesperma gracile ; SEMC • 1 ♀; Protection ; [37.2° N, 99.48° W]; 17 Jun. 1949; Michener, Beamer leg.; SEMC • 1 ♀; Satanta ; [37.44° N, 100.99° W]; 16 Jun. 1949; Michener, Beamer leg.; SEMC . – Massachusetts • 1 ♂; Franklin Co., 0.86 mi. SSW of W. Hawley ; [42.598° N, 72.932° W]; 19 Jul. 2006; M.F. Veit leg.; PCYU • 2 ♀♀; Middlesex Co., 0.1 mi. E of Airport ; [42.694° N, 71.551° W]; 29 Apr. 2006; M.F. Veit leg.; PCYU • 1 ♀; Middlesex Co., 0.2 mi. S of Townsend Gravel Pit ; [42.66° N, 71.71° W]; 27 May 2006; M.F. Veit leg.; PCYU . – Michigan • 1 ♀; Ingham Co., Fenner Arboretum ; 42.709° N, 84.522° W; 10 Aug. 2013; J. Gibbs leg.; WRME 0413041 • 1 ♂; ibid.; 10 Aug. 2013; J. Gibbs leg.; WRME • 1 ♀; Ingham Co., Haslett, Interurban path; 42.741° N, 84.419° W; 21 Jul. 2013; J. Gibbs leg.; WRME 0413042 • 1 ♀; Ingham Co., Lansing River Trail ; 42.707° N, 84.528° W; 3 Aug. 2013; J. Gibbs leg.; WRME 0414021 • 1 ♂; ibid.; 3Aug. 2013; J. Gibbs leg.; WRME 0414005 • 1 ♀; Ingham Co., MSU, south campus; 42.72° N, 84.473° W; 23 Aug. 2013; J. Gibbs leg.; WRME • 1 ♂; Van Buren Co., Paw Paw Prairie Fen Nature Preserve; 42.172° N, 85.768° W; 7 Jul. 2018; T. J. Wood leg.; WRME 0401748 • 1 ♀; Washtenau Co., Ann Arbor ; [42.28° N, 83.74° W]; Sep. 1976; R. W. Carlson leg.; SEMC . – Minnesota • 1 ♀; Clay Co., 3 mi. E, 2 mi. S of Felton, Felton Prairie ; 47.0472° N, 96.4379° W; 21 Jul. 2006; R. L. Andres leg.; PCYU • 1 ♀; Swift Co., Bengtson WPA; 45.2593° N, 95.2977° W; 2–3 Jul. 2017; Pennarola and Leone leg.; UMSP USGS-DRO 512761 . – Nebraska • 1 ♂; Keith Co., Ogallala ; [41.13° N, 101.72° W]; 17 Jun. 1963; R. M. Bohart leg.; UCDC • 2 ♀♀; Benkelman ; [40.05° N, 101.53° W]; 17 Aug.; Cockerell leg.; ex [P* serrulatum?]; UCMC . – New Mexico • 1 ♀; Chaves Co., Bottomless Lakes , 10 mi. E of Roswell; [33.34° N, 104.34° W]; 20 May 1969; Brothers, Krueger, Michener leg.; ex Tamarix gallica ; SEMC • 1 ♀; Chaves Co., Mescalero Sands ; [32.94° N, 103.95° W]; 3 Jun. 1974; H.E. Evans leg.; CSUC • 1 ♀; De Baca Co., Fort Sumner ; [34.47° N, 104.25° W]; 20 Aug. 1951; E.L. Kessel leg.; CAS • 2 ♀♀; Eddy Co.; 32.3283° N, 103.7817° W; 23 Jun. 1979; D. R. Delorme and H.L. Carrola leg.; TAMU-ENTO X1388437, X1388582 • 1 ♀; Eddy Co.; 32.3567° N, 103.7817°W; 21 Jul.1979; D. R. Delorme and C.P. McHugh leg.; TAMU-ENTO X1391808 • 1 ♀; Quay Co., 17 mi. S of Tucumcari ; [34.92° N, 103.73° W]; 19 May 1969; Brothers, Krueger, Michener leg.; ex Quincula lobata ; SEMC • 1 ♀; Quay Co., Tucumcari ; [35.17° N, 103.72° W]; 10 Jul. 1963; R. M. Bohart leg.; UCDC • 5 ♀♀; Roosevelt Co., 14 mi. SW of Portales near Boone Draw ; [34.05° N, 103.52° W]; 26 May 1972; Saul Frommer and N. Jorgensen leg.; UCRC ENT 525724 , 525725 , 525726 , 525727 , 525728 • 2 ♀♀; 7 miles E of Roswell ; [33.39° N, 104.4° W]; 18 May 1985; W.F. Chamberlain leg.; TAMU-ENTO X1389042, X1395614 • 1 ♀; Slaughter Canyon , 0.7 km E by S of Slaughter Cave; 32.1117° N, 104.5631° W; elev. 1324 m; 30 Mar. 2011; J.D. Herndon leg.; BBSL CAVE43430 • 1 ♀; ibid.; 3 Jun. 2011; J.D. Herndon, N. Klass leg.; BBSL CAVE39619 . – New York • 1 ♂; Albany Co., 2 mi. NW of Westerlo ; [42.54° N, 74.07° W]; 6 Jul. 1969; G.C. Eickwort leg.; CUIC • 2 ♀♀; Cayuga Co., Fair Haven Beach State Park ; [43.34° N, 76.68° W]; 27 May 1984; G.C. Eickwort leg.; CUIC • 1 ♀; Greene Co., Stony Clove Creek ; 42.1333° N, 74.2528° W; elev. 412 m; 28 Jun. 1978; T. L. McCabe leg.; CUIC • 1 ♀; Kings Co., Brooklyn, Prospect Park ; [40.66° N, 73.97° W]; 2 Jul. 2011; J.S. Ascher, C. Dong leg.; AMNH • 4 ♂♂; Nassau Co., Hempstead Lake State Park ; [40.69° N, 73.64° W]; 4–6 Jul. 1974; G.C. Eickwort leg.; CUIC • 4 ♀♀; Ontario Co., Selkirk Shores State Park ; [43.55° N, 76.2° W]; 12 Jun. 1976; G.C. Eickwort leg.; CUIC • 1 ♀; Otsego Co., East Worcester ; [42.62° N, 74.67° W]; 22 Jun. 1971; G. and K. Eickwort leg.; CUIC • 1 ♂; Otsego Co., East Worchester ; [42.62° N, 74.67° W]; 13 Aug. 1968; G. and K. Eickwort leg.; CUIC • 2 ♂♂; Schuyler Co., near Reynoldsville ; [42.47° N, 76.77° W]; 17 Jul. 1976; G.C. Eickwort leg.; CUIC • 1 ♀; Seneca Co., Junius Ponds , 6 mi. NW of Waterloo; [42.96° N, 76.95° W]; 24 Jun. 1986; G.C. Eickwort leg.; CUIC • 1 ♀; ibid.; 12 Aug. 1986; G.C. Eickwort leg.; CUIC • 1 ♂; Tompkins Co., 1 mi. S of McLean ; [42.54° N, 76.29° W]; 23 Jun. 1975; M.J. and C.A. Tauber leg.; CUIC • 4 ♂♂; Tompkins Co., Buttermilk Falls State Park, Ithaca ; [42.41° N, 76.51° W]; 7 Oct. 1967; G. and K. Eickwort leg.; CUIC • 1 ♂; Tompkins Co., Cornell University campus, Ithaca ; [42.45° N, 76.47° W]; 22 Jul. 1971; G. and K. Eickwort leg.; CUIC • 1 ♀; ibid.; 9 Jul. 1987; G.C. Eickwort leg.; CUIC • 1 ♂; Tompkins Co., Dryden ; [42.49° N, 76.3° W]; 18 Aug. 1968; G. and K. Eickwort leg.; CUIC • 1 ♀; Tompkins Co., Ithaca vicinity; [42.44° N, 76.5° W]; 21 May 1984; G. and K. Eickwort leg.; CUIC • 1 ♀; Tompkins Co., Ithaca vicinity, inlet; [42.45° N, 76.51° W]; 4 Jun. 1976; G. and K. Eickwort leg.; CUIC • 1 ♀; ibid.; 14 Jun. 1976; G. and K. Eickwort leg.; CUIC • 2 ♂♂; ibid.; 5 Aug. 1976; G. and K. Eickwort leg.; CUIC • 1 ♀; ibid.; 21 May 1984; G. and K. Eickwort leg.; CUIC • 2 ♀♀; Tompkins Co., Ithaca, Monkey Run ; [42.456° N, 76.451° W]; 1 Jun. 1984; B. Alexander leg.; CUIC • 1 ♀; ibid.; 26 Apr. 1986; G.C. Eickwort leg.; CUIC • 1 ♂; Tompkins Co., Michigan Hollow gravel pit, 5 mi. S of Danby; [42.28° N, 76.5° W]; 7 Sep. 1968; G. and K. Eickwort leg.; CUIC • 1 ♀; Tompkins Co., Robert H. Treman State Park , Ithaca ; [42.4° N, 76.57° W]; 14 Aug. 1971; G. and K. Eickwort leg.; CUIC • 1 ♀; Tompkins Co., Six Mile Creek , SE of Ithaca Reservoir; [42.41° N, 76.45° W]; 25 May 1968; G. and K. Eickwort leg.; CUIC • 1 ♂; Tompkins Co., Taughannock Falls State Park, Ithaca ; [42.54° N, 76.6° W]; 7 Oct. 1967; G. and K. Eickwort leg.; CUIC • 1 ♀; ibid.; 5 Jun. 1976; G. and K. Eickwort leg.; CUIC • 1 ♀; Ithaca ; [42.44° N, 76.5° W]; May 1913; CUIC • 1 ♀; ibid.; 2 May 1915; CUIC • 1 ♂; ibid.; 10 Aug. 1916; CUIC • 1 ♀, 1 ♂; ibid.; 22 Jun. 1936; CUIC • 1 ♀; ibid.; 6 Jul. 1947; C. Robinson leg.; CUIC • 1 ♂; ibid.; 20 Jun. 1962; CUIC • 2 ♂♂; Van Natta’s Dam, Ithaca ; [42.434° N, 76.485° W]; 14 Aug. 1931; P.P. Babiy leg.; CUIC • 1 ♀; ibid.; 23 May 1937; Babiy leg.; CUIC . – North Carolina • 1 ♂; Great Smoky Mountains National Park, Cataloochee overlook; 35.6399° N, 83.06017° W; 6 Aug. 2006; J. Gibbs leg.; GSNP • 1 ♀; S of Bryson City, Bryson City and Queen Branch Roads ; 35.28377° N, 83.4872° W; 8 Aug. 2006; J. Gibbs leg.; PCYU . – North Dakota • 1 ♀; Ransom Co., 7 miles southeast Sheldon ; [46.51° N, 97.39° W]; 24 Sep. 1983; J. R. Powers leg.; EMEC . – Oklahoma • 1 ♀; Jefferson Co., 1 mi. N of Terral ; [33.91° N, 97.94° W]; 4 Apr. 1954; R. E. Beer and party leg.; ex Crataegus ; SEMC . – Pennsylvania • 1 ♀; Stroud Co., Stroudsburg ; [40.99° N, 75.19° W]; 14 Jul. 1976; R. J. Pollack leg.; CUIC • 1 ♂; Lehigh Gap River ; [40.78° N, 75.61° W]; 19 Jul. 1903; J.C. Bradley leg.; CUIC • 1 ♂; Roberts [exact location unknown]; Aug. 1905; J.C. Bradley leg.; CUIC . – South Dakota • 2 ♀♀; Jackson Co.; 43.6617° N, 101.7683° W; 22–23 Aug. 2011; J. Devalez leg.; PWRC USGS-DRO 266771 , USGS-DRO 266784 • 2 ♀♀; Cedar Pass, Bad Lands ; [43.757° N, 101.936° W]; 14 Aug. 1940; H.E. Milliron leg.; UMSP . – Texas • 2 ♀♀; Anderson Co., 10 mi. SW of Elkhart ; [31.52° N, 95.7° W]; 5–6 Jun. 1976; H. R. Burke leg.; TAMU-ENTO X1365630, X1366170 • 1 ♀; Bailey Co., Muleshoe Wildlife Refuge; 33.9302° N, 102.7584° W; 13 May 2013; S.J. Galdek leg.; BBSL917863 • 3 ♀♀; Bailey Co., Muleshoe Wildlife Refuge; 33.963° N, 102.7282° W; 13 May 2013; S.J. Galdek leg.; BBSL916191 , BBSL916586 , BBSL916596 • 5 ♀♀; ibid.; 14 May 2013; S.J. Galdek leg.; BBSL916954 , BBSL917894 , BBSL917976 , BBSL917984 , BBSL917997 • 1 ♀; Bastrop Co., Camp Swift - Xrdburn; 30.2817° N, 97.3133° W; 10 May 2002; J.L. Neff leg.; CTMI 23455 • 1 ♀; ibid.; 11 Jun. 2002; J.L. Neff leg.; ex Monarda citriodora ; CTMI 23683 • 1 ♀; Bastrop Co., Camp Swift East ; 30.273° N, 97.264° W; 15 Oct. 2003; J.L. Neff leg.; ex Gutierrezia texana ; PCYU • 1 ♀; Bastrop Co., Sayers ; [29.37° N, 98.29° W]; 4 Apr. 1983; J.L. Neff leg.; ex Salix nigra ; CUIC • 1 ♂; ibid.; 14 May 1983; J.L. Neff leg.; ex Coreopsis basalis ; CUIC • 1 ♀; Bexar Co., Ebony Hill Research Station ( Kendall residence); [29.488° N, 98.696° W]; 12 May 2003; Roy O. Kendall leg.; TAMU-ENTO X0408802 • 1 ♀; Bexar Co.; [29.4° N, 98.5° W]; 24 Jun. 1930; H.B. Parks leg.; TAMU-ENTO X1388961 • 1 ♀; ibid.; 9 Oct. 1930; H.B. Parks leg.; TAMU-ENTO X1388818 • 1 ♀; ibid.; 20 Oct. 1930; H.B. Parks leg.; TAMU-ENTO X1388771 • 1 ♀; ibid.; 31 May 1951; H.B. Parks leg.; TAMU-ENTO X1387963 • 1 ♀; Blanco Co., 5 mi. W of Pedernales Falls ; [30.34° N, 98.33° W]; 6 Jun. 1987; J. Neff leg.; ex Aphanostephus ; CUIC • 1 ♀; Blanco Co., Sandy ; [30.36° N, 98.47° W]; 9 Jun. 1996; W.F. Chamberlain leg.; ex Mexican hat; TAMU-ENTO X1417301 • 1 ♀; Brazos Co.; [30.6° N, 96.3° W]; 15 Oct. 1962; A.H. Alex leg.; ex “ Aplopappus divaricatus ”; TAMU-ENTO X1388475 • 1 ♀; Burnet Co., 5 mi. SE of Marble Falls ; [30.53° N, 98.33° W]; 9 Sep. 2017; K.W. Wright leg.; ex Argemone albiflora ; TAMU-ENTO X1519857 • 2 ♀♀; ibid.; 9 Sep. 2017; K.W. Wright leg.; TAMU-ENTO X1519653 , X1519692 • 1 ♀; Collin Co., Allen ; [33.1° N, 96.67° W]; 27 May 1978; J.K. Weaver leg.; TAMU-ENTO X1395896 • 1 ♀; Erath Co., 5 mi. N of Stephenville ; [32.29° N, 98.2° W]; 21–23 May 1980; P. T. Riherd leg.; TAMU-ENTO X1365230 • 1 ♀; Erath Co., Stephenville ; [32.22° N, 98.2° W]; 27 Jul. 1982; Charles W. Agnew leg.; TAMU-ENTO X1399790 • 9 ♀♀; Fayetteville Co., Schulenberg ; [29.68° N, 96.9° W]; 28 Sep. 1965; G.E. Bohart leg.; ex Baccharis ; BBSL700712 , BBSL700713 , BBSL700714 , BBSL700715 , BBSL700716 , BBSL700717 , BBSL700718 , BBSL700719 , BBSL700726 • 5 ♀♀; Frio Co., 6 mi. SE of Pearsall ; [28.83° N, 99.02° W]; 7 Jul. 1972; E. Grissell, J. Smith leg.; TAMU-ENTO X1393566, X1395776, X1398969, X1399388 X1399455 • 2 ♂♂; ibid.; 7 Jul. 1972; E. Grissell, J. Smith leg.; TAMU-ENTO X1393544, X1399312 • 1 ♀; Gillespie Co., Morris Ranch ; [30.22° N, 99.01° W]; 11 Sep. 1994; W.F. Chamberlain leg.; TAMU-ENTO X1315845 • 1 ♀; Hidalgo Co., Bentsen Rio Grande Valley State Park ; [26.175° N, 98.385° W]; 22 Aug. 1978; C. Porter leg.; TAMU-ENTO X1365162 • 1 ♀; Hockley Co., 2 mi. S of Anton ; [33.78° N, 102.16° W]; 9 Sep. 1982; D.A. Dean leg.; ex cotton; TAMU-ENTO X1405014 • 3 ♂♂; Lavaca Co., 15 mi. S of Halletsville ; [29.22° N, 96.97° W]; 28 Aug. 1965; G.E. Bohart leg.; ex Croton ; BBSL700643 , BBSL700644 , BBSL700731 • 2 ♀♀; Lavaca Co., 15 mi. S of Hallettsville ; [29.22° N, 96.97° W]; 28 Aug. 1965; G.E. Bohart leg.; BBSL700720 , BBSL700730 • 6 ♀♀; ibid.; 28 Sep. 1965; G.E. Bohart leg.; ex Croton ; BBSL700708 , BBSL700709 , BBSL700711 , BBSL700722 , BBSL700727 , BBSL700729 • 1 ♀; Milam Co., 3.5 mi. S of Milano Highway 36; [30.67° N, 96.82° W]; 29 May 1976; S.J. Merritt leg.; ex Coreopsis ; TAMU-ENTO X1399244 • 1 ♀; Presidio Co., Fort Leaton State Park (2 mi. E of Presidio); [29.54° N, 104.33° W]; 31 May 1983; W.J. Pulawski leg.; CAS • 1 ♀; Randall Co., Palo Duro Canyon State Park ; [34.98° N, 101.7° W]; 28 Jul. 1972; G. Eickwort leg.; CUIC • 1 ♀; Reeves Co., TAMU Research Station at Pecos ; [31.37° N, 103.62° W]; 17 Aug. 1976; S.J. Merritt leg.; ex alfalfa; TAMU-ENTO X1400844 • 1 ♀; Refugio Co., 10 mi. SW of Woodsboro, Aransas River ; [28.14° N, 97.44° W]; 26 Mar. 1973; W.E. Clark leg.; TAMU-ENTO X1313097 • 1 ♀; Robertson Co., 13.9 miles east of junction of Highways 6 and OSR; [30.75° N, 96.22° W]; 11 Jun. 1977; S.J. Merritt leg.; ex Monarda ; TAMU-ENTO X1395766 • 3 ♀♀; Robertson Co., 2.3 mi. E of junction of Highways 6 and OSR; [30.75° N, 96.42° W]; 25 May 1980; S.J. Merritt leg.; ex Rudbeckia sp. ; TAMU-ENTO X1405581, X1405750, X1405761 • 1 ♂; Robertson Co., Salter Research Farms ; 31.0333° N, 96.7725° W; elev. 88 m; 21 Apr. 2017; K. Wright leg.; ex Lupinus texensis ; TAMU-ENTO X1533747 • 1 ♀, 1 ♂; San Patricio Co., Welder Preserve 7 mi. NE of Sinton; [28.11° N, 97.42° W]; 25 Apr. 1977; T. Eichlin, M. Wasbauer leg.; CUIC • 2 ♀♀; San Patricio Co., Welder Refuge ; 28.1122° N, 97.4167° W; elev. 20 m; Mar. 2004; Sty Reed leg.; PCYU • 1 ♀; San Patricio Co., Welder Wildlife Refuge ; [28.11° N, 97.42° W]; 15 Jun. 1974; J.C. Schaffner leg.; TAMU-ENTO X1393448 • 1 ♀; ibid.; 28 Jun. 1984; J.C. Schaffner leg.; ex hackberry motte; TAMU-ENTO X1391758 • 1 ♀; Taylor Co., Dyess Air Force Base ; 32.4072° N, 99.829° W; 6–9 May 2000; H.W. Ikerd leg.; TAMU-ENTO X1389797 • 1 ♀; Taylor Co., Dyess Air Force Base ; 32.4415° N, 99.8111° W; 12–13 Apr. 2001; H.W. Ikerd leg.; TAMU-ENTO X1312735 • 1 ♂; Travis Co., 10 mi. SE of Austin ; [30.16° N, 97.86° W]; 27 Sep. 1965; G.E. Bohart leg.; ex Chrysopsis viscida ; BBSL700642 • 1 ♂; Uvalde Co., Speir Ranch 3 mi. NW of Uvalde; [29.25° N, 99.8° W]; 2 May 1977; T. Eichlin, M. Wasbauer leg.; CUIC • 2 ♀♀; Val Verde Co., Langtry ; [29.81° N, 101.56° W]; 14 Jun. 1986; J.L. Neff leg.; ex Prosopis glandulosa ; CTMI • 1 ♀; Walker Co., Ellis Prison ; [30.88° N, 95.46° W]; 13 Jul. 1977; W.L. Sterling leg.; TAMU-ENTO X1395578 • 2 ♀♀; Williamson Co., CR 278 3.5 mi. SE of Liberty Hill ; [30.63° N, 97.89° W]; 9 Sep. 2017; K.W. Wright leg.; TAMU-ENTO X1519365, X1520556 • 1 ♀; Williamson Co., Highway 183 4 mi. N of Leander; [30.64° N, 97.87° W]; 9 Sep. 2017; K.W. Wright leg.; ex Gutierrezia ; TAMU-ENTO X1536156 • 2 ♀♀; 10 miles S of Austin ; [30.11° N, 97.74° W]; 28 Sep. 1965; G.E. Bohart leg.; BBSL700723 , BBSL700724 • 1 ♂; ibid.; 28 Sep. 1965; G.E. Bohart leg.; BBSL700646 • 1 ♀; 10 miles SE of Muleshoe ; [34.12° N, 102.6° W]; 17 Jun. 1999; W.F. Chamberlain leg.; TAMU-ENTO X1312786 • 1 ♀; 16 miles east of Sonora ; [30.57° N, 100.37° W]; 28 Jul. 1986; W.F. Chamberlain leg.; TAMU-ENTO X1387689 • 1 ♀; 5 mi. east of Riogrande ; [26.38° N, 98.74° W]; 12 Apr. 1950; Beamers, Stephen, Michener, Rozens leg.; SEMC • 1 ♀; 5 miles north of Benavides ; [27.67° N, 98.41° W]; 9 May 1988; W.F. Chamberlain leg.; TAMU-ENTO X1415318 • 2 ♀♀; 5 miles SE of Hondo ; [29.3° N, 99.08° W]; 7 Mar. 1993; W.F. Chamberlain leg.; TAMU-ENTO X1387859, 1388315 • 1 ♀; 7 miles west of Eldorado ; [30.86° N, 100.72° W]; 19 May 1985; W.F. Chamberlain leg.; ex Prosopis ; TAMU-ENTO X1388887 • 1 ♀; Austin ; [30.26° N, 97.74° W]; 29 Jun. 1976; Foerster leg.; ex cult. camphon weed; TAMU-ENTO X1365934 • 1 ♀; Edna ; [28.98° N, 96.65° W]; 24 Mar. 1907; J.D. Mitchell leg.; USNM • 1 ♀; Runge ; [28.88° N, 97.71° W]; 29 Sep. 1904; J.C. Crawford leg.; USNM • 1 ♀; Victoria ; [28.8° N, 97° W]; 26 Feb. 1904; J.C. Crawford leg.; USNM 40307 • 1 ♀; ibid.; 7 Apr. 1904; J.C. Crawford leg.; USNM • 1 ♀; ibid.; 17 Apr. 1904; A.W. Morrill leg.; USNM . – Wisconsin • 1 ♂; Iowa Co., Avoca Prairie ; 43.19501° N, 90.28733° W; 23 Jul. 2006; A. Wolf leg.; PCYU • 1 ♀; Sauk Co., Spring Green Preserve ; 43.19696° N, 90.0605° W; 29 Jul. 2006; A. Wolf leg.; ex sand; PCYU • 1 ♀; Sauk Co., Spring Green Preserve ; 43.19785° N, 90.05904° W; 23 Jul. 2006; A. Wolf leg.; WRME 0370768 . – Wyoming • 1 ♀; Goshen Co., 23 mi. S of Lusk ; [42.43° N, 104.45° W]; 11 Jun. 1981; U.N. Lanham leg.; ex Euphorbia esula ; UCMC .

Note: During final preparation of the manuscript some Montana specimens were discovered in MTEC.

Range

United States and Canada east of the Rocky Mountains and south to the Mexico border ( Fig. 20 ).

Floral hosts

ANACARDIACEAE : Rhus • APIACEAE : Cymopterus Raf. • ASTERACEAE : Aphanostephus DC. • Aster • Baccharis • Coreopsis : C. basalis • Gutierrezia : G. texana • Heterotheca : H. viscida • Ratibida Raf. : R. columnifera (Nutt.) Wooton and Standl. • Rudbeckia L. • Thelesperma Less. : T. megapotamicum (Spreng.) Kuntze • BRASSICACEAE : Lepidium • Rorippa Scop. : R. sinuata (Nutt.) Hitchc. • EUPHORBIACEAE : Croton • Euphorbia : E. esula L. • E. missurica Raf. • FABACEAE : Lupinus L.: L. texensis Hook. • Medicago : M. sativa • Melilotus : M. officinalis : M. o. subsp. alba • Prosopis : P. glandulosa • LAMIACEAE : Monarda : M. citriodora Cerv. ex Lag. • MALVACEAE : Gossypium • PAPAVERACEAE : Argemone : A. albiflora • POLYGONACEAE : Eriogonum : E. effusum Nutt. • Polygonum L. • ROSACEAE : Crataegus L. • Prunus L. • SALICACEAE : Salix : S. nigra Marshall • SOLANACEAE : Quincula Raf. : Q. lobata (Torr.) Raf. • TAMARICACEAE : Tamarix : T. gallica L.

DNA barcodes

Nineteen confirmed sequences available (BOLD process IDs: BEECB221-07, BOWGF1482-10, BWTWO897-10, BWTWO899-10, BWTWO902-10, DIAL476-06, DIAL888-06, DIAL918-06, DIAL1089-06, DLII031-06, DLII1522-09, DLII1527-09, DLII1559-09, DLII1566-09, DLII1586-09, DLII1590-09, DLIII026-09, DLIII122-18, NCBEE387-21). There is a moderate amount of divergence within these sequences (0.76% maximum intraspecific p-distance). They are closest in terms of p-distance to L. helianthi (1.22% minimum interspecific p-distance). Two fixed nucleotide substitutions distinguish L. ellisiae from all other Nearctic species of the L. gemmatum complex: 312(A) and 573(C) (Supp. file 2).

Comments

Specimens of L. ellisiae from the southwestern parts of its range usually have the tegula and metasoma red-orange and have been considered a separate species, L. hunteri , in the past. However, the geographical boundaries of the dark forms and red-tailed forms are very fuzzy. Dark specimens of L. ellisiae are known from New Mexico and Colorado, and red-tailed specimens have been found as far north as Minnesota and Manitoba. No other morphological features can distinguish the two forms; if colour is disregarded, the holotype of L. hunteri is a typical L. ellisiae . An apparent distribution gap between eastern and western specimens ( Fig. 20 ) is likely due to undersampling in eastern South Dakota, eastern Nebraska, eastern Kansas, Oklahoma, and Missouri. DNA barcodes from across the range of L. ellisiae , including red-tailed specimens from Texas and Minnesota, are indistinguishable. No line of evidence can support the hypothesis that L. hunteri is a distinct species.

Four unusual red-tailed specimens from southern Texas have the metapostnotum completely dull, smooth, and lacking rugae, even fine ones, in the apical 75%, but otherwise resemble typical L. ellisiae . The identification of these specimens is somewhat uncertain. They are tentatively included in L. ellisiae as the closest available match and because there is no additional evidence to support consideration of these specimens as a new species.

Figures

Fig. 18. Lasioglossum (D.) ellisiae (Sandhouse, 1924), ♀, holotype of L. (D.) hunteri (Crawford, 1932) (USNM). A. Mesonotum. B. Mesepisternum. C. Face. D. Metasoma and propodeum. Scale bars = 1 mm.

Fig. 19. Lasioglossum (D.) ellisiae (Sandhouse, 1924), red-tailed ♂ (BBSL). A. Dorsal habitus. B. Lateral habitus. C. Face. D. Metasoma. Scale bars = 1 mm.

Fig. 20. Georeferenced collection records of Lasioglossum (D.) ellisiae (Sandhouse, 1924) (black squares) and predicted distribution by maximum entropy ecological niche modelling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.

Fig. 95. Tegulae. A. Lasioglossum holzenthali sp. nov., ♀, not reaching posterior margin of mesoscutum and inner posterior margin straight (outline on left).B. L. ellisiae (Sandhouse, 1924), ♀, reaching posterior margin of mesoscutum and inner posterior margin concave (arrow and outline on left). Scale bars = 1 mm.

Fig. 99. Mesepisternum. A. Lasioglossum ellisiae (Sandhouse, 1924), ♀, punctures similar to hypoepimeron. B. L. diabolicum sp. nov., ♀, punctures slightly larger and coarser than on hypoepimeron. Scale bars = 0.5 mm.

Fig. 102. Face. A. Lasioglossum holzenthali sp. nov., ♂, with dense tomentum on lower paraocular areas and sparser tomentum between. B. L. ellisiae (Sandhouse, 1924), ♂, with dense tomentum below eye emargination. C. L. deludens sp. nov., ♂, with dense tomentum slightly above eye emargination. D. L. gloriosum sp. nov., ♂, with dense tomentum below ocelli. Scale bars = 1 mm.

Fig. 113. Tegulae. A. Lasioglossum magnitegula sp. nov., ♂, very large and exceeding mesoscutum posterior margin by almost 1 OD. B. L. ellisiae (Sandhouse, 1924), ♂, smaller and not exceeding mesoscutum posterior margin. Scale bars = 0.5 mm.

Fig. 120. Mesoscutum. A. Lasioglossum ellisiae (Sandhouse, 1924), ♂, evenly punctate with most IS = 1 PD. B. L. diabolicum sp. nov., ♂, more coarsely and unevenly punctate. Scale bars = 0.5 mm.