Gnamptogenys concinna

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Gnamptogenys concinna
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ectatomminae
Tribe: Ectatommini
Genus: Gnamptogenys
Species: G. concinna
Binomial name
Gnamptogenys concinna
(Smith, F., 1858)

Gnamptogenys concinna P casent0179454.jpg

Gnamptogenys concinna D casent0179454.jpg

Specimen Label


Consistently collected and observed on trees, this species is an arboreal nester. Longino found a nest inside a large, deep knothole and records prey items of the following: Heteroptera: Pentatomidae, Aradidae; Coleoptera: Cerambycidae, Histeridae, Platypodidae, Chrysomelidae, Tenebrionidae, and Passalidae. One observed foraging group was made up of 9 workers and a dealate queen. Observations of group foraging of up to 40 single-file workers, plus the following Longino observation, indicate trail and/or recruiting pheromone communication in this species. “The foragers walked with their gasters curled and touching the substrate. When they were together near the prey I could often make out a tiny white area (gland?) exposed at the very tip of the gaster, which other workers would investigate”. (Lattke 1995)


A member of the concinna species group. A large finely striate species with transverse striae on propodeum, declivity medianly smooth; Promesonotal suture weakly impressed or absent; mesometanotal suture deep and wide; metacoxal tooth absent, low crest or tubercle at most. Color can vary from ferruginous to light-brown, and the striae on the posterior nodal face may be effaced. (Lattke 1995)

Keys including this Species


Latitudinal Distribution Pattern

Latitudinal Range: 10.35° to -15.13333333°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Bolivia, Brazil (type locality), Colombia, Costa Rica, Ecuador, Mexico, Panama, Peru, Trinidad and Tobago, 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.




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

  • concinna. Ectatomma concinna Smith, F. 1858b: 103 (q.) BRAZIL (Pará).
    • Type-material: holotype queen.
    • Type-locality: Brazil: Pará, Santarem, “52/96” (H.W. Bates).
    • Type-depository: BMNH.
    • Mayr, 1866b: 892 (w.).
    • Combination in Ponera (Ectatomma): Roger, 1860: 307;
    • combination in Ectatomma: Roger, 1863b: 17;
    • combination in Ectatomma (Gnamptogenys): Mayr, 1887: 541;
    • combination in Ectatomma (Tammoteca): Santschi, 1929h: 476;
    • combination in Gnamptogenys: Mayr, 1866b: 892; Brown, 1958g: 227; Camacho, Franco, Branstetter, et al. 2022: 11.
    • Status as species: Roger, 1860: 307; Mayr, 1863: 409; Roger, 1863b: 17; Mayr, 1866b: 892 (redescription); Mayr, 1870b: 963 (in key); Mayr, 1886c: 358; Emery, 1890b: 41; Dalla Torre, 1893: 23; Emery, 1894k: 47; Forel, 1895b: 113; Emery, 1896g: 45 (in key); Forel, 1899c: 7; Emery, 1911d: 45; Mann, 1916: 406; Wheeler, W.M. 1922c: 3; Borgmeier, 1923: 60; Wheeler, W.M. 1923a: 2; Brown, 1958g: 227, 305; Kempf, 1972a: 112; Lattke, 1990b: 8; Brandão, 1991: 345; Bolton, 1995b: 208; Lattke, 1995: 163; Lattke, et al. 2004: 343; Lattke, et al. 2007: 261 (in key); Lattke, et al. 2008: 83; Bezděčková, et al. 2015: 111; Feitosa, 2015c: 98; Feitosa & Prada-Achiardi, 2019: 671; Camacho, et al. 2020: 459 (in key); Camacho, Franco, Branstetter, et al. 2022: 11.
    • Senior synonym of conica: Brown, 1958g: 227; Kempf, 1972a: 112; Bolton, 1995b: 208; Lattke, 1995: 163.
    • Senior synonym of romani: Brown, 1958g: 227, 305; Kempf, 1972a: 112; Bolton, 1995b: 208; Lattke, 1995: 163.
    • Senior synonym of semicircularis: Brown, 1958g: 227, 305; Kempf, 1972a: 112; Bolton, 1995b: 208; Lattke, 1995: 163.
    • Distribution: Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Mexico, Panama, Peru, Venezuela.
  • conica. Gnamptogenys concinna var. conica Borgmeier, 1929: 196 (w.) TRINIDAD.
    • Type-material: holotype worker.
    • Type-locality: Trinidad (no further data, “from Forel’s collection”).
    • Type-depository: MZSP.
    • Junior synonym of concinna: Brown, 1958g: 227; Kempf, 1972a: 112; Bolton, 1995b: 208; Lattke, 1995: 163.
  • romani. Ectatomma (Gnamptogenys) concinnum var. romani Wheeler, W.M. 1923a: 2 (w.) BRAZIL (Amazonas).
    • Type-material: holotype worker.
    • Type-locality: Brazil: Amazonas, Rio Purus, Hyutánaha, i.1915 (A. Roman).
    • Type-depository: MCZC or NHRS.
    • Junior synonym of concinna: Brown, 1958g: 227, 305; Kempf, 1972a: 112; Bolton, 1995b: 210; Lattke, 1995: 163.
  • semicircularis. Gnamptogenys concinna var. semicircularis Borgmeier, 1929: 195 (w.) BRAZIL (Mato Grosso).
    • Type-material: holotype worker.
    • Type-locality: Brazil: (no further data).
    • [Note: Borgmeier says the holotype is “apparently from Mato Grosso”.]
    • Type-depository: MZSP.
    • Junior synonym of concinna: Brown, 1958g: 227, 305; Kempf, 1972a: 112; Bolton, 1995b: 210; Lattke, 1995: 163.

The following notes on F. Smith type specimens have been provided by Barry Bolton (details):

Ectatomma concinna

Holotype queen in The Natural History Museum. Labelled “Braz. Santarem” on one side, and “52/96,” on the other. Acc. Reg.: “1852 no. 96 (Sept. 6) Purchased of Stevens. Collected by Mr Bates.”



  • Mayr, G. 1866b. Diagnosen neuer und wenig gekannter Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 16: 885-908 (page 892, Combination in Gnamptogenys)
  • Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 37: 511-632 (page 541, Combination in Ectatomma (Gnamptogenys))
  • Santschi, F. 1929h. Révision du genre Holcoponera Mayr. Zool. Anz. 82: 437-477 (page 476, Combination in E. (Tammoteca))

References based on Global Ant Biodiversity Informatics

  • Adams B. J., S. A. Schnitzer, and S. P. Yanoviak. 2016. Trees as islands: canopy ant species richness increases with the size of liana-free trees in a Neotropical forest. Ecography doi: 10.1111/ecog.02608
  • Adams B. J., S. A. Schnitzer, and S. P. Yanoviak. 2019. Connectivity explains local ant community structure in a Neotropical forest canopy: a large-scale experimental approach. Ecology 100(6): e02673.
  • 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.
  • Borgmeier T. 1929. Zur Kenntnis der brasilianischen Ameisen. EOS. Revista Española de Entomología 5: 195-214.
  • Brandao, C.R.F. 1991. Adendos ao catalogo abreviado das formigas da regiao neotropical (Hymenoptera: Formicidae). Rev. Bras. Entomol. 35: 319-412.
  • Brown W. L., Jr. 1958. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118: 173-362.
  • Delabie J. H. C., W. D. da Rocha, R. M. Feitosa, P. Devienne, and D. Fresneau. 2010. Gnamptogenys concinna (F. Smith, 1858) : nouvelles données sur sa distribution et commentaires sur ce cas de gigantisme dans le genre Gnamptogenys (Hymenoptera, Formicidae, Ectatomminae). Bulletin de la Société entomologique de France 115 (3): 269-277.
  • Emery C. 1890. Studii sulle formiche della fauna neotropica. Bull. Soc. Entomol. Ital. 22: 38-8
  • Escalante Gutiérrez J. A. 1993. Especies de hormigas conocidas del Perú (Hymenoptera: Formicidae). Revista Peruana de Entomología 34:1-13.
  • Fernández F., and T. M. Arias-Penna. 2008. Las hormigas cazadoras en la región Neotropical. Pp. 3-39 in: Jiménez, E.; Fernández, F.; Arias, T.M.; Lozano-Zambrano, F. H. (eds.) 2008. Sistemática, biogeografía y conservación de las hormigas cazadoras de Colombia. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xiv + 609 pp.
  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
  • Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
  • INBio Collection (via Gbif)
  • 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
  • Lattke, J. E. 1990b. Revisión del género Gnamptogenys Roger en Venezuela (Hymenoptera: Formicidae). Acta Terramaris 2: 1-47
  • Longino J. et al. ADMAC project. Accessed on March 24th 2017 at
  • Ryder Wilkie K.T., A. L. Mertl, and J. F. A. Traniello. 2010. Species Diversity and Distribution Patterns of the Ants of Amazonian Ecuador. PLoS ONE 5(10): e13146.doi:10.1371/journal.pone.0013146
  • Scott-Santos, C.P., F.A. Esteves, C.R.F. Brandao. 2008. Catalogue of "Poneromorph" ant type specimens (Hymenoptera, Formicidae) deposited in the Museu de Zoologia da Universidade de Sao Paulo, Brazil. Papeis Avulsos de Zoologia 48(11):75-88.
  • Tobin E. J. 1997. Competition and coexistence of ants in a small patch of Rainforest Canopy in Peruvian Amazonia. J. New York Entomol. Soc. 105(1-2): 105-114
  • Wheeler W. M. 1922. The ants of Trinidad. American Museum Novitates 45: 1-16.
  • Wilson, E.O. 1987. The Arboreal Ant Fauna of Peruvian Amazon Forests: A First Assessment. Biotropica 19(3):245-251.
  • da Silva de Oliveira A. B., and F. A. Schmidt. 2019. Ant assemblages of Brazil nut trees Bertholletia excelsa in forest and pasture habitats in the Southwestern Brazilian Amazon. Biodiversity and Conservation 28(2): 329-344.