Gnamptogenys sulcata

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

Gnamptogenys sulcata casent0173387 profile 1.jpg

Gnamptogenys sulcata casent0173387 dorsal 1.jpg

Specimen labels


De la Mora et al. (2016) found this species nesting in logs found in coffee farms and forests in the Soconusco region of Chiapas, Mexico. A small percentage of pupae were found to be parasitized by eucharitid wasps. Gnamptogenys sulcata are known to be preyed upon by Dendrobates histrionicus (Lattke 1990).


Mandibles subtriangular; dorsal mesosomal costulae convergent caudad and transverse on declivitous propodeal face; metacoxal tooth absent, at most present as very small tubercle or short lobe; very variable color: mesosoma black to light brown, frequently head, gastric apex and posterior margin of gastric tergum II darker than rest of body. Legs antennae, and mandibles light to dark brown. Variation has been observed in size and shape of the subpetiolar process, mandibular width, and relative size of the eyes. The node can project posteriorly and approach the condition in Gnamptogenys acuminata but does not become acutely pointed. Even though the propodeal declivity is commonly transversely costulate, it can sometimes have oblique or even longitudinal costulae. (Lattke 1995)

Keys including this Species


Distribution based on Regional Taxon Lists

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

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb


Koch et al. (2018) sampled this species in Caryocar barsiliense trees, in southeastern Brazil cerrado, as part of a study examining species interactions in ant-plants.




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

  • sulcata. Ponera sulcata Smith, F. 1858b: 99 (w.) BRAZIL. Forel, 1899c: 8 (q.m.). Combination in Ectatomma (Gnamptogenys): Dalla Torre, 1893: 26; Emery, 1896g: 51; in Gnamptogenys: Mayr, 1886c: 358; Brown, 1958g: 229. Senior synonym of cearensis, lineata, nitens, ypirangensis: Brown, 1958g: 229; of tornata: Lattke, 1995: 188..
  • tornata. Ponera tornata Roger, 1861a: 15 (w.q.m.) MEXICO. Combination in Ectatomma (Gnamptogenys): Mayr, 1887: 541; Emery, 1896g: 46; in Gnamptogenys: Roger, 1863a: 174; Mann, 1922: 3; Brown, 1958g: 229. Junior synonym of sulcata: Lattke, 1995: 188. See also: Kempf, 1968b: 378.
  • lineata. Gnamptogenys lineata Mayr, 1870b: 965 (w.) BRAZIL. Combination in Ectatomma (Gnamptogenys): Mayr, 1887: 541. Subspecies of sulcata: Emery, 1896g: 51; Forel, 1912c: 32. Junior synonym of sulcata: Brown, 1958g: 229.
  • cearensis. Ectatomma (Gnamptogenys) sulcatum var. cearensis Forel, 1912c: 33 (w.) BRAZIL. Junior synonym of sulcata: Brown, 1958g: 229.
  • nitens. Ectatomma (Gnamptogenys) sulcatum var. nitens Mann, 1916: 407 (w.) BRAZIL. Junior synonym of sulcata: Brown, 1958g: 229.
  • ypirangensis. Gnamptogenys ypirangensis Borgmeier, 1928b: 60 (w.) BRAZIL. Junior synonym of sulcata: Brown, 1958g: 229.

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

Ponera sulcata

Two worker syntypes in The Natural History Museum. Labelled “Ega,” and “58/6.” Acc. Reg.: “Amazon (Ega on the Rio). Purchased of Stevens.”


Determination Clarifications

Much confusion has accumulated regarding the identity of this Gnamptogenys ericae 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.


  • Borgmeier, T. 1957a. Myrmecologische Studien, I. An. Acad. Bras. Cienc. 29: 103-128 PDF
  • 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, Combination in Gnamptogenys, Senior synonym of cearensis, lineata, nitens and ypirangensis:)
  • Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 26, Combination in Ectatomma (Gnamptogenys))
  • de la Mora, A., G. Perez-Lachaud, J. P. Lachaud, and S. M. Philpott. 2015. Local and Landscape Drivers of Ant Parasitism in a Coffee Landscape. Environmental Entomology. 44:939-950. doi:10.1093/ee/nvv071
  • Emery, C. 1896g. Studi sulle formiche della fauna neotropica. XVII-XXV. Bull. Soc. Entomol. Ital. 28: 33-107 (page 51, Combination in Ectatomma (Gnamptogenys))
  • Forel, A. 1899b. Formicidae. [part]. Biol. Cent.-Am. Hym. 3: 1-24 (page 8, queen, male described)
  • Koch, E. B. A., W. Dattilo, F. Camarota, and H. L. Vasconcelos. 2018. From species to individuals: does the variation in ant-plant networks scale result in structural and functional changes? Population Ecology. 60:309-318. doi:10.1007/s10144-018-0634-5
  • Lattke, J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). J. Hym. Res. 4: 137-193 (page 188, Senior synonym of tornata)
  • 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
  • Mayr, G. 1886c. Notizen über die Formiciden-Sammlung des British Museum in London. Verh. K-K. Zool.-Bot. Ges. Wien 36: 353-368 (page 358, Combination in Gnamptogenys)
  • Smith, F. 1858a. Catalogue of hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. London: British Museum, 216 pp. (page 99, worker described)