Strumigenys denticulata Mayr, 1887

Silva, Thiago Sanches Ranzani Da, Chaul, Júlio Cezar Mário & Feitosa, Rodrigo Machado, 2022, Lectotype designation and redescription of four commonly collected Neotropical species of Strumigenys (Hymenoptera: Formicidae), European Journal of Taxonomy 798 (1), pp. 103-126 : 111-116

publication ID

https://doi.org/10.5852/ejt.2022.798.1673

publication LSID

lsid:zoobank.org:pub:C10C629A-8BD4-46EE-BA5B-CBC396890031

DOI

https://doi.org/10.5281/zenodo.6344170

persistent identifier

https://treatment.plazi.org/id/E53F8786-5750-F24C-FDA2-ACC14263C8FD

treatment provided by

Felipe

scientific name

Strumigenys denticulata Mayr, 1887
status

 

Strumigenys denticulata Mayr, 1887

Figs 3–4 View Fig View Fig

Strumigenys denticulata Mayr, 1887: 576 .

Pyramica aschnae Makhan, 2007: 2 , figs 3–4 View Cited Treatment (synonymyzed by Bolton et al. 2008).

Pyramica aschnakiranae Makhan, 2007: 3 , figs 5–6 View Cited Treatment (synonymyzed by Bolton et al. 2008).

Pyramica denticulata – Bolton 1999: 1672.

Strumigenys denticulata – Baroni Urbani & De Andrade 2007: 117.

Diagnosis

Strumigenys denticulata can be distinguished from other local species by the combination of long mandibles, flagellate humeral setae ( Fig. 4B View Fig ), reduced postpetiolar spongiform projections ( Fig. 4B View Fig ), and fourth abdominal tergite mostly smooth.

Type material

Lectotype (designated herein) (label information) ( Fig. 3 View Fig ) BRAZIL • “ St. Cath Hetschko ” [printed]; “ Collect. G. Mayr ” [printed]; “ denticulata ” [handwritten] “G. Mayr, Type” [printed]; “ANTWEB CASENT 0915944 ” [printed]; “ Strumigenys denticulata Mayr, 1887 LECTOTYPE” [printed]; “ NHMW-HYM4949 ” [printed]; NMHW .

Paralectotypes (label information) BRAZIL • 1 worker; same collection data as for lectotype; “ Strumigenys denticulata Mayr, 1887 PARALECTOTYPE” [printed]; “ MCZT_28511 ” [printed]; MCZ 2 workers; “ Blumenau ” [printed]; “Coll. G. Mayr, Type” [printed]; “ Strumigenys denticulata Mayr, 1887 PARALECTOTYPE ” [printed]; “ NHMW-HYM4952 ” [printed]; NHMW 1 worker; “ St. Catharina Coll. G. Mayr [printed]; “Type” [printed]; “ Strumigenys denticulata Mayr, 1887 PARALECTOTYPE ” [printed]; “ NHMW-HYM4950 ” [printed]; NMHW 1 worker; “ St. Catharina Coll. G. Mayr ” [printed];“126 Hetschko 1/984” [handwriten] “Type” [printed]; “ Strumigenys denticulata Mayr, 1887 PARALECTOTYPE ” [printed]; “NHMW- HYM4951 ” [printed]; NHMW 1 worker; “ St. Catharina Coll. G. Mayr ” [printed]; “Brit. Mus. 1922– 501.” [printed]; “ denticulata ” [handwritten] “G. Mayr, Type” [printed]; “ BMNH(E)1013551 ” [printed]; “ANTWEB CASENT 0900180 ” [printed]; “Syntype” [printed] “ Strumigenys denticulata Mayr, 1887 PARALECTOTYPE ” [printed]; NHMUK.

Additional material examined

BRAZIL – Amazonas • 4 workers, 1 queen; Terra Firme ; 02°34′ S, 60°06′ W; 7 Nov. 1990; M.O. de Oliveira leg.; capoeira; km 10; ZF-02; CELC, UFV-LABECOL-009312 GoogleMaps 1 worker; Manaus, Colosso Camp ; 2°24′17.6″ S, 59°53′37.6″ W; 12–21 Aug. 2016; B. Boudinot, I. Fernandes and J. Chaul leg.; CELC, ANTWEB1038943 GoogleMaps Bahia • 2 workers, 2 queens; Itacaré ; 14°17′38.0″ S, 38°59′08.6″ W; 23 Oct. 2015; J. Chaul leg.; CELC, UFV-LABECOL-001970 . – GoogleMaps Espírito Santo • 1 worker; Conceição da Barra, Reserva Biológica Córrego Grande ; 18°15′18.3″ S, 39°49′04.0″ W; 33 m a.s.l.; 21 Apr.–10 May 2017; N. Safar, C. Aquila and C. Guimarães leg.; Winkler; CELC, ANTWEB1032525 GoogleMaps 1 worker, 1 queen; Conceição da Barra, Floresta Nacional do Rio Preto ; 18°24′31.4″ S, 39°50′00.9″ W; 33 m a.s.l.; 21 Apr.– 10 May 2017; N. Safar, C.Aquila and C. Guimarães; Winkler; CELC, UFV-LABECOL-0008497 . – GoogleMaps Mato Grosso • 1 worker; Canarana-Querência ; 13°04′ S, 52°23′ W; Jun. 2013; M. Bicalho and V. Ribeiro leg.; Winkler; CELC, UFV-LABECOL-001884 . – GoogleMaps Minas Gerais • 1 worker; São Tiago ; 20°57′09.69″ S, 44°26′32.09″ W; Feb. 2012; M. Padilha leg.; CELC, UFV-LABECOL-010975 GoogleMaps 1 queen; same collection data as for preceding; CELC, UFV-LABECOL-001878 GoogleMaps 1 queen; Viçosa ; 13 Jan. 1998; S.M. Soares leg.; CELC, UFV-LABECOL-001889 1 worker; Viçosa , Mata do Paraíso ; 2009–2010; A.S. Pereira leg.; CELC, UFV-LABECOL-001855 1 queen; same collection data as for preceding; CELC, UFV- LABECOL-001854 1 queen; same collection data as for preceding; CELC, UFV-LABECOL-001888 3 queens; same collection data as for preceding; CELC, UFV-LABECOL-001733 1 worker; Viçosa ; Jan. 2011; L.G. Dornelas leg.; CELC, UFV-LABECOL-001817 1 worker; Viçosa, Mata do Paraíso ; 20°48′08″ S, 42°51′31″ W; 13–18 Mar. 2011; L. Paolucci leg.; Berlese; CELC, UFV-LABECOL-001786 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-001680 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-001772 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-001760 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-001777 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV- LABECOL-001773 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-001763 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-001787 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-001785 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-001784 GoogleMaps 1 worker; Viçosa ; 20°47′44.2″ S, 42°50′47.6″ W; 15 Feb. 2006; F.A. Schmidt leg.; CELC, UFV-LABECOL-001694 GoogleMaps 1 worker; Viçosa, Mata do Seu Nico ; 20°47′54.5″ S, 42°50′49.9″ W; 745 m a.s.l.; 13 Apr. 2012; F.A. Schmidt, F.M. Rezende and R.S. Jesus leg.; CELC, UFV-LABECOL-001747 GoogleMaps 1 worker, 1 queen; Viçosa, Horto UFV ; 8 Feb. 2012; J. Chaul leg.; CELC, UFV-LABECOL-001887 1 worker, 1 queen; 20°45′30.44″ S, 42°51′49.65″ W; 731 m a.s.l.; 5 May 2013; J. Chaul and N. Safar leg.; epigaeic Winkler; CELC, UFV-LABECOL-008836 GoogleMaps 1 queen; Viçosa, Mata do Paraíso ; 20°48′ S, 42°51′ W; 12 Feb. 2015; J. Chaul and A.P. Alves leg.; Winkler; CELC, UFV-LABECOL-001715 GoogleMaps 1 worker; Viçosa, Mata dos Cristais ; 20°46′36.84″ S, 42°50′31.56″ W; Apr. 2013; J. Chaul and R.S. Jesus leg.; CELC, UFV-LABECOL-008220 GoogleMaps 2 workers; Viçosa, Mata do Paraíso ; 20°48′18.1″ S, 42°51′05.5″ W; May 2014; R. Jesus leg.; CELC, UFV-LABECOL-000066 GoogleMaps 1 worker; Viçosa, Mata do Paraíso ; 20°48′19″ S, 42°51′12″ W; 12 Jul. 2016; A.P. Raimundo, L. Ferreira, J. Chaul and L. Paolucci leg.; hypogaeic Winkler; CELC, UFV-LABECOL-010979 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-010978 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-010977 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-010976 GoogleMaps 1 worker; Viçosa, Mata do Paraíso ; 20°48′08.4″ S, 42°51′31.1″ W; 16 Feb. 2018; F. Ferreira leg.; CELC, UFV-LABECOL-009450 GoogleMaps 1 queen; Viçosa, Mata do Paraíso ; 20°48′23.3″ S, 42°51′00.5″ W; 6–13 Jan. 2017; R.S. Jesus leg.; Malaise trap; CELC, ANTWEB1032934 GoogleMaps 1 worker; Araponga ; Apr. 2011; D. Muscardi; CELC, UFV-LABECOL-001894 1 worker, 1 queen; Araponga, Cachoeira do Boné ; 20°39′43″ S, 42°26′57.5″ W; 11 Feb. 2016; J. Chaul leg.; CELC, UFV- LABECOL-001536 GoogleMaps 2 workers; Araponga, Parque Estadual da Serra do Brigadeiro, Estrada Araponga- Fervedouro ; 20°44′21.9″ S, 42°27′20.6″ W; 16 Oct. 2016; N. Safar and T. Fernandes leg.; CELC, UFV- LABECOL-009314 GoogleMaps 1 worker; Timóteo, Parque Estadual do Rio Doce ; 19°46′ S, 42°37′ W; 2009; F.A. Schmidt leg.; CELC, UFV-LABECOL-001857 GoogleMaps 1 worker, 1 queen; Parque Estadual do Itacolomi ; 20°25′36.1″ S, 43°30′23.3″ W; 25–31 Oct. 2016; G. Soares, J. Falcon, L.F. Climaco and T. Pontes leg.; CELC, UFV-LABECOL-010729 GoogleMaps 1 worker; Parna do Cipó, Cachoeira da Farofa ; 19°22′45.9″ S, 43°34′32.8″ W; 11 May 2016; J. Chaul leg.; CELC, UFV-LABECOL-011008 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-011009 GoogleMaps 1 worker; Conceição do Mato Dentro, Serra da Serpentina ; 19.03394° S, 43.33687° W; 1–7 Sep. 2010; R.R. Silva leg.; Winkler; CELC, UFV- LABECOL-010460 GoogleMaps 1 worker; same collection data as for preceding; CELC, UFV-LABECOL-010462 GoogleMaps 1 worker; Ipaba, Reserva Particular do Patrimônio Natural Fazenda Macedônia , CENIBRA; Nov. 2005; T. Marques leg.; CELC, UFV-LABECOL-001875 . – Pará • 1 worker; Paragominas ; Jan.–Jul. 2011; R. Solar leg.; CELC, UFV-LABECOL-001722 1 worker; Primavera ; 01°00′36″ S, 47°07′04″ W; 5–6 Nov. 2018; L.P. Prado and K.L.S. Sampaio; Winkler; CELC, UFV-LABECOL-010477 GoogleMaps 2 workers; Portel ; 01°50′31.3″ S, 50°37′44.4″ W; 5 Jun. 2016; E.L.S. Siqueira and team leg.; Winkler; CELC, UFV- LABECOL-010449 . – GoogleMaps Paraná • 22 workers; Tunas do Paraná, Parque Estadual das Lauráceas , Trilha da Anta ; 24°51′27.53″ S, 48°43.2′58″ W; 2–4 May 2017; T.S.R. Silva, N. Ladino, R.M. Feitosa leg.; DZUP. – GoogleMaps Rondônia • 1 queen; Rolim Moura ; 11°34′11.9″ S, 61°45′37.0″ W; 8 Oct. 2015; E.A. Silva leg.; CELC, UFV-LABECOL-011006 . – GoogleMaps Santa Catarina • 1 worker; Parque Estadual Serra Dourada ; 28°10′38″ S, 49°23′38,94″ W; 31 May 2014; A.S. Pereira leg.; A3W05 ; DZUP GoogleMaps 1 worker; Orleans, Parque Estadual da Serra Furada ; 28°10′38″ S, 49°23′38.94″ W; 31 May 2014; A.S. Pereira leg.; A3W05 ; DZUP GoogleMaps 1 worker; same collection data as for preceding; 24 Mar. 2014; A3W06 ; DZUP GoogleMaps 1 worker, 1 queen; Florianópolis, Lagoinha do Leste ; 27°46′31.0″ S, 48°29′06.0″ W; 18 Feb. 2016; J. Chaul leg.; CELC, UFV-LABECOL-008223 . – GoogleMaps São Paulo • 1 worker; Parque Estadual da Serra do Mar ; 23°21′ S, 44°51′ W; 2009; F.A. Schmidt leg.; CELC, UFV-LABECOL-001853 GoogleMaps .

PERU – Madre de Dios • 1 worker; Puerto Maldonado, Reserva Nacional Tambopata ; 12°51′21″ S 69°21′43″ W; 210 m a.s.l.; 19–31 Jul. 2012; R. Feitosa leg.; CELC. GoogleMaps

Lectotype measurements

ABD4L 0.321; DPW 0.078; EL 0.033; HL 0.418; HT 0.221; HW 0.321; ML 0.355; PH 0.106; PL 0.172; PPL 0.115; PW 0.226; SL 0.236; WL 0.441; TL 1.816; CI 77.9; DPI 45.3; LPI 61.6; MI 84.9; OI 10.3; SI 73.5.

Paralectotype measurements

ABD4L N/A; DPW 0.094; EL 0.035; HL 0.405; HT 0.218; HW 0.33; ML 0.308; PH 0.104; PL 0.185; PPL N/A; PW 0.228; SL 0.232; WL 0.462; TL N/A; CI 81.5; DPI 50.8; LPI 56.2; MI 76; OI 10.6; SI 70.3 (n = 1; NHMUK BMNH (E)1013551; see Comments for missing measurement values).

Non-type measurements

ABD4L 0.280 –0.370; DPW 0.080 –0.105; EL 0.040 –0.050; HL 0.400 –0.450; HT 0.220 –0.250; HW 0.320 –0.365; ML 0.280 –0.370; PH 0.100 –0.115; PL 0.170 –0.200; PPL 0.080 –0.090; PW 0.220 – 0.250; SL 0.230 –0.280; WL 0.420 –0.480; TL 1.660 –1.895; CI 76.2–81.8; DPI 47.1–55.6; LPI 54.1– 61.8; MI 70.0–88.1; OI 11.8–13.7; SI 70.8–84.4 (n = 10).

Description

SCULPTURE. Head entirely reticulate-punctate, including antennal scrobe. Mesosoma entirely reticulatepunctate, except for katepisternum and part of metapleura, which are smooth ( Fig. 4B View Fig ). Fourth abdominal tergite superficially reticulate-punctate near base. Length of basigastral costulae, in dorsal view, more or less equal to length of postpetiole.

SETAE. Cephalic ground-setae remiform ( Fig. 4A View Fig ). Two pairs of remiform erect setae on cephalic dorsum; one pair near medial region of head, other near occipital margin. Apicoscrobal setae flagellate ( Fig. 4A View Fig ). Anterior margin of scape with one or more remiform setae curved towards antennal insertion. Humeral setae flagellate ( Fig. 4B View Fig ). Erect setae on antero-medial region of pronotum absent. Pair of erect setae on mesonotum stiff, simple to slightly remiform. Setae on petiole, postpetiole and fourth abdominal tergite remiform to slightly clavate.

HEAD. Masticatory margin of mandible with 5–10 preapical denticles ( Fig. 4A View Fig ). Apex of mandible with two minute intercalary denticles ( Fig. 4A View Fig ). Anterior clypeal margin, in dorsal view, convex medially. Eye, in lateral view, with three to four ommatidia along longest row. Eye on anterior half of head. In dorsal view, scape cylindrical. Third flagellomere smaller than fourth flagellomere; length of former only one-third of length of latter.

MESOSOMA. Humerus with small angular projection. Dorsum of mesonotum, in lateral view, convex, confluent with dorsum of pronotum. Metanotal groove weakly impressed, almost absent in lateral view. Propodeal spine relatively long and triangular, linked to propodeal lobe by narrow carina that extends

throughout propodeal declivity. Femoral bulla small, ovate and located distally on dorsal margin of sclerite.

METASOMA. Petiolar node, in dorsal view, slightly wider than long, almost as long as wide; in lateral view, anterior margin almost as long as dorsal margin. Anterior margin of postpetiole, in dorsal view, concave. Lateral and ventral spongiform processes of petiole absent. Ventral spongiform lobe of postpetiole minute ( Fig. 4B View Fig ). Lateral spongiform lobe of postpetiole vestigial ( Fig. 4B View Fig ). Ventral basigastral spongiform pad absent.

Comments

Bolton (2000) considered S. denticulata as a member of the gundlachi complex (i.e., a cluster of species under the gundlachi species group), along with Strumigenys connectens Kempf, 1958 , S. decipula ( Bolton, 2000), S. eggersi Emery, 1890 , S. enopla ( Bolton, 2000), S. gemella Kempf, 1975, S. gundlachi (Roger, 1862), S. jamaicensis Brown, 1959, S. laevipleura Kempf, 1958, S. lalassa ( Bolton, 2000), S. nubila Lattke & Goitía, 1997, S. subedentata Mayr, 1887 , S. trieces Brown, 1960, S. vartana ( Bolton, 2000), and S. xenognatha Kempf, 1958. Members of the gundlachi complex are defined by the following traits ( Bolton 2000): (i) inner margin of mandible without a submedian tooth or denticle near midlength; (ii) inner margin of mandible with several teeth of different sizes posterior to the apicodorsal tooth; (iii) two (rarely three) intercalary teeth; (iv) labral lobes short; and (v) setae on apices of labral lobes long (i.e., longer than the labral lobes).

According to Bolton (2000), specimens belonging to S. denticulata have a wide range of mandibular length variation, with individuals collected in a single leaf litter sample presenting MIs ranging from 72 to 85. It is important to notice that the MI of the lectotype falls near the maximum value established by Bolton (i.e., MI 84.9). On the other hand, ML and HL measurements fall well within the range proposed by the same author as diagnosable for the species (i.e., ML 0.355 and HL 0.418).

According to Bolton (2000), some specimens identified as S. denticulata have the katepisternum entirely reticulate-punctate, while all specimens observed in this study (cf. examined material) have a smooth patch in the katepisternum, including the lectotype. All specimens observed had the fourth abdominal tergite mostly smooth, only with the base of the sclerite with reticulate-punctate sculpture.

One of the paralectotypes (BMNH(E)1013551) is missing the postpetiole and gaster, rendering it impossible to evaluate morphological variability of those body regions in this particular individual.

MCZ

USA, Massachusetts, Cambridge, Harvard University, Museum of Comparative Zoology

NHMW

Austria, Wien, Naturhistorisches Museum Wien

DZUP

Brazil, Parana, Curitiba, Universidade Federal do Parana, Museu de Entomologia Pe. Jesus Santiago Moure

MCZ

Museum of Comparative Zoology

NHMW

Naturhistorisches Museum, Wien

NHMUK

Natural History Museum, London

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

ML

Musee de Lectoure

PL

Západoceské muzeum v Plzni

PW

Paleontological Collections

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Strumigenys

Loc

Strumigenys denticulata Mayr, 1887

Silva, Thiago Sanches Ranzani Da, Chaul, Júlio Cezar Mário & Feitosa, Rodrigo Machado 2022
2022
Loc

Pyramica aschnae

Makhan 2007: 2
2007
Loc

Pyramica aschnakiranae

Makhan 2007: 3
2007
Loc

Strumigenys denticulata

Baroni Urbani C. & De Andrade M. L. 2007: 117
2007
Loc

Pyramica denticulata

Bolton B. 1999: 1672
1999
Loc

Strumigenys denticulata

Mayr G. 1887: 576
1887