Gnamptogenys annulata

Gnamptogenys annulata
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Ectatomminae
Tribe:	Ectatommini
Genus:	Gnamptogenys
Species:	G. annulata
Binomial name
	Gnamptogenys annulata; (Mayr, 1887) Specimen Label

J. Longino (pers. comm.) reports from a nest midden chitinous fragments of Coleoptera, aradid bug nymphs, an unidentified male ant, and a Camponotus worker. An apparently recently killed Pheidole (cephalica?) queen was also found in a nest chamber. (Lattke 1995)

Identification

A member of the annulata complex (in the regularis subgroup of the mordax species group). Finely striate species; longitudinal striae on head, promesonotum and gastric segments 2 and 3; petiolar dorsum with transversely arched striae; mandibles subtriangular; metacoxal spine absent; body reddish brown; coxae ferruginous yellow; tibiae and femora yellow to testaceous but apically ferruginous yellow to ferruginous. The gauge of costulation can vary from striate to finely costulate, but coloration is fairly stable.(Lattke 1995)

Keys including this Species

Key to New World Gnamptogenys workers

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 10.99261° to -23.06666667°.


North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

Source: AntMaps

Distribution based on Regional Taxon Lists

Neotropical Region: Bolivia, Brazil (type locality), Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Honduras, Panama, Peru, Suriname, Venezuela.

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 annulata. 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.

annulata. Ectatomma (Gnamptogenys) rimulosa var. annulata Mayr, 1887: 543 (w.q.m.) BRAZIL (Santa Catarina).
- Type-material: syntype workers, syntype queens, syntype males (numbers not stated).
- Type-locality: Brazil: Santa Catarina (no collector’s name).
- Type-depositories: NHMB, NHMW.
- Combination in Gnamptogenys: Mann, 1922: 3; Brown, 1958g: 227; Camacho, Franco, Branstetter, et al. 2022: 11.
- Subspecies of rimulosa: Dalla Torre, 1893: 26; Forel, 1895b: 113; Forel, 1908c: 340.
- Status as species: Emery, 1890b: 41; Emery, 1894k: 47; Emery, 1896g: 46 (in key); Forel, 1899c: 8; Emery, 1911d: 45; Santschi, 1913h: 33; Mann, 1916: 408; Luederwaldt, 1918: 34; Santschi, 1921g: 83; Mann, 1922: 3; Borgmeier, 1923: 60; Wheeler, W.M. 1925a: 4; Brown, 1958g: 227, 299; Kempf, 1960e: 390; Kempf, 1961b: 491; Kempf, 1972a: 112; Kempf & Lenko, 1976: 51; Lattke, 1990b: 8; Brandão, 1991: 345; Bolton, 1995b: 208; Lattke, 1995: 157; Lattke, et al. 2004: 342; Lattke, et al. 2007: 259 (in key); Lattke, et al. 2008: 79; Bezděčková, et al. 2015: 111; Feitosa, 2015c: 98; Feitosa & Prada-Achiardi, 2019: 671; Camacho, et al. 2020: 457 (in key); Camacho, Franco, Branstetter, et al. 2022: 11.
- Distribution: Bolivia, Brazil, Colombia, Costa Rica, French Guiana, Ecuador, Guyana, Honduras, Nicaragua, Panama, Peru, Suriname, Venezuela.

Description

Karyotype

See additional details at the Ant Chromosome Database.

Explore: Show all Karyotype data or Search these data. See also a list of all data tables or learn how data is managed.

n = 34, 2n = 68, karyotype = 6M+62A (Brazil) (Borges et al., 2004b; Mariano et al., 2015).

References

Albuquerque, E., Prado, L., Andrade-Silva, J., Siqueira, E., Sampaio, K., Alves, D., Brandão, C., Andrade, P., Feitosa, R., Koch, E., Delabie, J., Fernandes, I., Baccaro, F., Souza, J., Almeida, R., Silva, R. 2021. Ants of the State of Pará, Brazil: a historical and comprehensive dataset of a key biodiversity hotspot in the Amazon Basin. Zootaxa 5001, 1–83 (doi:10.11646/zootaxa.5001.1.1).
Borges, D. S.; Mariano, C. S. F.; Delabie, J. H. C.; Pompolo, S. G. 2004b. Estudos citogenéticos em formigas neotropicais do gênero Gnamptogenys Roger (Hymenoptera, Formicidae, Ectatomminae). Rev. Brasil. Entomol. 48: 481-484 (page 481-484, karyotype described)
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.
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Emery, C. 1890c. Studii sulle formiche della fauna neotropica. Bull. Soc. Entomol. Ital. 22: 38-80 (page 41, Raised to species)
Franco, W., Ladino, N., Delabie, J.H.C., Dejean, A., Orivel, J., Fichaux, M., Groc, S., Leponce, M., Feitosa, R.M. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674, 509–543 (doi:10.11646/zootaxa.4674.5.2).
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.
Mann, W. M. 1922. Ants from Honduras and Guatemala. Proc. U. S. Natl. Mus. 61: 1-54 (page 3, Combination in Gnamptogenys)
Mariano, C.S.F., Santos, I.S., Silva, J.G., Costa, M.A., Pompolo, S.G. 2015. Citogenética e evolução do cariótipo em formigas poneromorfas. In: Delabie, J.H.C., Feitosa, R.M., Serrao, J.E., Mariano, C.S.F., Majer, J.D. (eds) As formigas poneromorfas do Brasil, 1st edn. Ilhéus, Brasil, pp 102–125 (doi:10.7476/9788574554419.0010).
Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 37: 511-632 (page 543, worker, queen, male described)
Pratt, S. C. 1994. Ecology and behavior of Gnamptogenys horni (Formicidae, Ponerinae). Insect. Soc. 41:255-262. (page 157, see also)
Teixeira, G.A., Barros, L.A.C., Lopes, D.M., de Aguiar, H.J.A.C. 2019. Cytogenetic variability in four species of Gnamptogenys Roger, 1863 (Formicidae: Ectatomminae) showing chromosomal polymorphisms, species complex, and cryptic species. Protoplasma 257, 549–560 (doi:10.1007/s00709-019-01451-6).

References based on Global Ant Biodiversity Informatics

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Borges, D.S., C.S.F. Mariano, J.H.C. Delabie and S.G. Pompolo. 2004. Estudos citogenéticos em formigas neotropicais do gênero GnamptogenysRoger (Hymenoptera, Formicidae, Ectatomminae). Revista Brasileira de Entomologia 48(4): 481-484.
Borgmeier T. 1923. Catalogo systematico e synonymico das formigas do Brasil. 1 parte. Subfam. Dorylinae, Cerapachyinae, Ponerinae, Dolichoderinae. Archivos do Museu Nacional (Rio de Janeiro) 24: 33-103.
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INBio Collection (via Gbif)
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