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


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




The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • concinna. Ectatomma concinna Smith, F. 1858b: 103 (q.) BRAZIL. Mayr, 1866b: 892 (w.). Combination in Gnamptogenys: Mayr, 1866b: 892; in Ectatomma (Gnamptogenys): Mayr, 1887: 541; in E. (Tammoteca): Santschi, 1929h: 476; in Gnamptogenys: Brown, 1958g: 227. Senior synonym of conica, romani, semicircularis: Brown, 1958g: 227. See also: Lattke, 1995: 162.
  • romani. Ectatomma (Gnamptogenys) concinnum var. romani Wheeler, W.M. 1923: 2 (w.) BRAZIL. Junior synonym of concinna: Brown, 1958g: 227.
  • conica. Gnamptogenys concinna var. conica Borgmeier, 1929: 196 (w.) BRAZIL. Junior synonym of concinna: Brown, 1958g: 227.
  • semicircularis. Gnamptogenys concinna var. semicircularis Borgmeier, 1929: 195 (w.) BRAZIL. Junior synonym of concinna: Brown, 1958g: 227.

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.”



  • Brown, W. L., Jr. 1958g. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bull. Mus. Comp. Zool. 118: 173-362 (page 229, Junior synonym of teffensis; page 227, Combination in Gnamptogenys, and senior synonym of conica, romani and semicircularis)
  • Delabie, J.H.C., da Rocha, W.D., Feitosa, R.M., Devienne, P. & Fresneau, D. 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, 269-277.
  • Lattke, J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). J. Hym. Res. 4: 137-193 (page 162, see also)
  • 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))
  • Smith, F. 1858a. Catalogue of hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. London: British Museum, 216 pp. (page 103, queen described)