Gnamptogenys bruchi

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Gnamptogenys bruchi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ectatomminae
Tribe: Ectatommini
Genus: Gnamptogenys
Species: G. bruchi
Binomial name
Gnamptogenys bruchi
(Santschi, 1922)

Gnamptogenys bruchi casent0173382 profile 1.jpg

Gnamptogenys bruchi casent0173382 dorsal 1.jpg

Specimen labels

Apparently a predator of Trachymyrmex and other leaf cutting ants (Kempf and Brown, 1968:92).

Identification

A member of the hartmoni complex (in the regularis subgroup of the mordax species group). Striate body sculpture with weak transverse impressions; metacoxal process is shaped as a low, triangular lobe; clypeal lamella broadly convex anterad. Kempf (1969) notes Gnamptogenys bruchi as close to Gnamptogenys hartmani and that a synonymy could be possible. He also mentions the variability of the extent of impression of the metanotal groove and discards it as an indicator of species separation. This could very well be only a variant of hartmani but due to differences of sculpture on the posterior petiole face, postpetiolar sternal process and c1ypeal lamella, I have chosen to conserve this name until more material can be studied. The sculpture on the dorsum of the petiole can vary from longitudinal to whorled. (Lattke 1995)

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina (type locality), Brazil, Paraguay.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • bruchi. Ectatomma (Parectatomma) bruchi Santschi, 1922d: 241 (w.) ARGENTINA. Combination in E. (Commateta): Santschi, 1929h: 476; in Gnamptogenys: Brown, 1958g: 227.

Description

References

  • Brown, W. L., Jr. 1958g. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bull. Mus. Comp. Zool. 118: 173-362 (page 227, Combination in Gnamptogenys)
  • Lattke, J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). J. Hym. Res. 4: 137-193 PDF (page 160, figs. 43, 44 worker, male described)
  • Lattke, J.E., Fernández, F. & Palacio, E.E. 2007. Identification of the species of Gnamptogenys Roger in the Americas (pp. 254-270). In Snelling, R.R., Fisher, B.L. & Ward, P.S. (eds). Advances in ant systematics: homage to E.O. Wilson – 50 years of contributions. Memoirs of the American Entomological Institute 80: 690 pp. PDF
  • Kempf, W. W.; Brown, W. L., Jr. 1968. Report on some Neotropical ant studies. Pap. Avulsos Zool. (Sao Paulo) 22: 89-102. PDF
  • Santschi, F. 1922e. Description de nouvelles fourmis de l'Argentine et pays limitrophes. An. Soc. Cient. Argent. 94: 241-262 (page 241, worker described)
  • Santschi, F. 1929h. Révision du genre Holcoponera Mayr. Zool. Anz. 82: 437-477 (page 476, Combination in E. (Commateta))