Gnamptogenys nana

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Gnamptogenys nana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ectatomminae
Tribe: Ectatommini
Genus: Gnamptogenys
Species: G. nana
Binomial name
Gnamptogenys nana
Kempf, 1960
Synonyms

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.

Identification

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

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina, Brazil (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

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.

Castes

Nomenclature

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.

Description

References

  • 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