Gnamptogenys ericae

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Gnamptogenys ericae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ectatomminae
Tribe: Ectatommini
Genus: Gnamptogenys
Species: G. ericae
Binomial name
Gnamptogenys ericae
(Forel, 1912)

Gnamptogenys ericae casent0178677 profile 1.jpg

Gnamptogenys ericae casent0178677 dorsal 1.jpg

Specimen labels

Synonyms

Can be found nesting in disturbed forests and coffee plantations as well as in undisturbed forests.

Identification

A member of the ericae complex (in the ericae subgroup of the sulcata species group). Mandibles subtriangular; posterior mesosomal dorsum and propodeum with longitudinal costulae, transverse sutures barely visible under certain angles of lighting; small metacoxal tooth. Body black; antennae, legs and mandibles brown to dark brown. Color in this species is relatively constant but occasional ferruginous, brown or mottled specimens will turn up. Size and shape of the petiolar node does not vary as much as in Gnamptogenys sulcata. Workers seem to always have longitudinal costulae on the propodeal declivity, though queens may have transverse costulae. (Lattke 1995)

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Colombia (type locality), Guyana.

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 ericae. 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.

  • ericae. Ectatomma (Gnamptogenys) tornatum var. ericae Forel, 1912c: 33 (w.) COLOMBIA. Combination in Gnamptogenys: Brown, 1958g: 229. Junior synonym of tornata: Brown, 1958g: 229. Revived from synonymy, raised to species and senior synonym of bufonum: Lattke, 1995: 166.
  • bufonum. Gnamptogenys sulcatum subsp. bufonum Weber, 1938a: 208 (w.) GUYANA. Junior synonym of sulcata: Brown, 1958g: 229; of ericae: Lattke, 1995: 166.

Description

Determination Clarifications

Much confusion has accumulated regarding the identity of this species and the similar Gnamptogenys sulcata. Many previous references to sulcata are actually ericae, but the confusion makes it quite difficult to distinguish between each reference.

References