Nothing is known about the biology of Gnamptogenys nana. Its nearest relatives, Gnamptogenys horni and Gnamptogenys regularis include beetles as a significant part of their diets, while horni also preys on ants.
A member of the regularis complex (in the regularis subgroup of the mordax species group). Head subquadrate, mandibles subtriangular with striae at base, clypeal lamella straight, no transverse mesosomal impressions, propodeal declivity with vertical costulae. (Lattke 1995)
Keys including this Species
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
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Not much is known about the the biology of Gnamptogenys nana. We can speculate that the biology of this species is similar to other species of the genus. Gnamptogenys are predatory ponerine ants that inhabit tropical and subtropical mesic forests. Nesting is typically at ground level in rotten wood or leaf litter. Some exceptions include species that are arboreal, a dry forest species and species that nests in sandy savannahs. Colony size tends to be, at most, in the hundreds. Queens are the reproductives in most species. Worker reproduction is known from a few species in Southeastern Asia. Generalist predation is the primary foraging/dietary strategy. Specialization on specific groups (millipedes, beetles, other ants) has developed in a few species.
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- nana. Gnamptogenys nana Kempf, 1960f: 422, figs. 7-9 (w.) BRAZIL. Senior synonym of dina: Kempf, 1978: 35.
- dina. Parectatomma dina Kusnezov, 1969: 35 (diagnosis in key) (w.) ARGENTINA. Junior synonym of nana: Kempf, 1978: 35.
- Kempf, W. W. 1960f. Miscellaneous studies on Neotropical ants (Hymenoptera, Formicidae). Stud. Entomol. (n.s.) 3: 417-466 (page 422, figs. 7-9 worker described)
- Kempf, W. W. 1978b. Five new synonyms for the Argentine ant fauna (Hymenoptera, Formicidae). 112. Stud. Entomol. 20: 35-38 (page 35, Senior synonym of dina)
- Lattke, J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). J. Hym. Res. 4: 137-193
- 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