Strumigenys gemella

Strumigenys gemella
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Attini
Genus:	Strumigenys
Species:	S. gemella
Binomial name
Strumigenys gemella Kempf, 1975

Nothing is known about the biology of Strumigenys gemella.

Identification

A member of the gundlachi complex in the Strumigenys gundlachi group.

Keys including this Species

• Key to Neotropical Strumigenys (as Pyramica)
• Neotropical Pyramica key modifications

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 3.56667° to 3.433°.

North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

• Source: AntMaps

Distribution based on Regional Taxon Lists

Neotropical Region: Colombia (type locality).

Distribution based on AntMaps

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

• gemella. Strumigenys gemella Kempf, 1975a: 416, fig. 5 (w.) COLOMBIA. Combination in Pyramica: Bolton, 1999: 1673; in Strumigenys: Baroni Urbani & De Andrade, 2007: 120. See also: Bolton, 2000: 185.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Bolton (2000) - TL 2.6-2.8, HL 0.62-0.64, HW 0.47-0.49, CI 76-78, ML 0.37-0.39, MI 59-61, SL 0.35-0.37, AL 0.69-0.73 (measurements from Kempf, 1975). Characters of gundlachi complex; very closely related to Strumigenys laevipleura and matching the description of that species except as follows.

1 Inner margin of mandible proximal of basal most denticle distinctly sinuous.

2 Proximal (basal most) preapical denticle much larger than the two more distally located denticles.

3 Short but distinct basigastral costulae present.

4 First gastral tergite with a narrow anterior spongiform collar.

5 First gastral stemite with a weak but distinct spongiform pad anteriorly.

Type Material

Bolton (2000) - Holotype and paratype workers, COLOMBIA: Valle, Pichinde Valley, SW of Cali, 1 570 m . , 22.iii. 1967, rain forest (R. B. Root & w.L. Brown) (Museu de Zoologia da Universidade de Sao Paulo) (examined).

References

• Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria” 99: 1-191.

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 397, catalogue)
• Bolton, B. 1999. Ant genera of the tribe Dacetonini (Hymenoptera: Formicidae). J. Nat. Hist. 3 33: 1639-1689 (page 1673, Combination in Pyramica)
• Bolton, B. 2000. The ant tribe Dacetini. Mem. Am. Entomol. Inst. 65: 1-1028 (page 185, redescription of worker)
• Kempf, W. W. 1975a [1974]. Report on Neotropical Dacetine ant studies (Hymenoptera: Formicidae). Rev. Bras. Biol. 34: 411-424 (page 416, fig. 5 worker described)
• [[Media:Silva, T.S.R.D., Chaul, J.C.M. et al. 2022. Lectotype designation and redescription of four commonly collected Neotropical species of Strumigenys (10.5852@ejt.2022.798.1673).pdf|Silva, T.S.R.D., Chaul, J.C.M., Feitosa, R.M. 2022. Lectotype designation and redescription of four commonly collected Neotropical species of Strumigenys (Hymenoptera: Formicidae). European Journal of Taxonomy, 798(1), 103–126 (Template:Doi.org).]]

References based on Global Ant Biodiversity Informatics

• Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
• Ulyssea M. A., C. R. F. Brandao. 2013. Catalogue of Dacetini and Solenopsidini ant type specimens (Hymenoptera, Formicidae, Myrmicinae) deposited in the Museu de Zoologia da Universidade de Sao Paulo, Brazil. Papies Avulsos de Zoologia 53(14): 187-209.