Gnamptogenys rimulosa

Gnamptogenys rimulosa
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Ectatomminae
Tribe:	Ectatommini
Genus:	Gnamptogenys
Species:	G. rimulosa
Binomial name
	Gnamptogenys rimulosa; (Roger, 1861)

Identification

Mandibles with small basal patch of costulae, rest smooth and shining; metacoxa with broad, basal lobe; petiolar node longitudinally costulate throughout; postpetiolar sternum smooth and shining. This species seems to be particularly close to Gnamptogenys regularis. Even though regularis workers lack the small laterobasal costulate area on the mandibles, females have it; there is a slight depression of the posterior mesosomal dorsum, vestigial propodeal lobes and totally longitudinal costulae on the node.(Lattke 1995)

Keys including this Species

Key to New World Gnamptogenys workers

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -13.121944° to -27.18333333°.


North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

Source: AntMaps

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (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.

Biology

Explore Overview of Gnamptogenys biology

Not much is known about the the biology of Gnamptogenys rimulosa. 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.

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Castes

Nomenclature

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

rimulosa. Ponera rimulosa Roger, 1861a: 18 (w.) BRAZIL (no state data).
- Type-material: 2 syntype workers.
- Type-locality: Brazil: (no further data) (von Olfers).
- Type-depository: MNHU.
- Combination in Ectatomma (Gnamptogenys): Mayr, 1887: 541; Emery, 1896g: 52;
- combination in Gnamptogenys: Roger, 1863a: 174; Mayr, 1863: 422; Brown, 1958g: 229; Camacho, Franco, Branstetter, et al. 2022: 11.
- Status as species: Mayr, 1863: 422; Roger, 1863b: 19; Mayr, 1870b: 964 (in key); Mayr, 1887: 543; Dalla Torre, 1893: 26; Forel, 1895b: 113; Emery, 1896g: 52; Emery, 1911d: 45; Forel, 1912c: 32; Borgmeier, 1923: 61; Brown, 1958g: 229, 324; Kempf, 1972a: 114; Bolton, 1995b: 210; Lattke, 1995: 182; Lattke, et al. 2007: 260 (in key); Feitosa, 2015c: 98; Camacho, et al. 2020: 458 (in key); Camacho, Franco, Branstetter, et al. 2022: 11.
- Distribution: Brazil.

Description

References

Brown, W. L., Jr. 1956d. Notes on the ant genus Holcoponera Mayr, with descriptions of two new species. Insectes Soc. 3: 489-497.

Brown, W. L., Jr. 1958g. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118: 173-362 (page 229, Combination in Gnamptogenys)

Camargo, K.S. de. 2011. Composicao e diversidade de "Poneromorfas" (Hymenoptera, Formicidae) em duas fitofisionomias de cerrado e padroes de distribuicao de "Poneromorfas", Pseudomyrmecinae e Cephalotini (Myrmicinae) para o Brasil. Thesis, Universidade de Brasilia.
Emery, C. 1896g. Studi sulle formiche della fauna neotropica. XVII-XXV. Bull. Soc. Entomol. Ital. 28: 33-107 (page 52, Combination in Ectatomma (Gnamptogenys))

Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 37: 511-632 (page 541, Combination in Ectatomma (Gnamptogenys))

Lattke, J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). J. Hym. Res. 4: 137-193. PDF

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

Roger, J. 1861a. Die Ponera-artigen Ameisen (Schluss). Berl. Entomol. Z. 5: 1-54 (page 18, worker described)

Roger, J. 1863a. Die neu aufgeführten Gattungen und Arten meines Formiciden-Verzeichnisses nebst Ergänzung einiger früher gegebenen Beschreibungen. Berl. Entomol. Z. 7: 131-214 (page 174, Combination in Gnamptogenys)

References based on Global Ant Biodiversity Informatics

Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
Lattke J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). Journal of Hymenoptera Research 4: 137-193