Atta mexicana

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Atta mexicana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Atta
Species: A. mexicana
Binomial name
Atta mexicana
(Smith, F., 1858)

Atta mexicana casent0421379 profile 1.jpg

Atta mexicana casent0421379 dorsal 1.jpg

Specimen Label

Photo Gallery

  • Major worker.


Identification Keys including this Taxon

Key to US Atta species


Distribution based on Regional Taxon Lists

Nearctic Region: United States.
Neotropical Region: El Salvador, Guatemala, Honduras, Mexico (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb


This species is a host for the pteromalid wasp Spalangia attae (a parasite) (Universal Chalcidoidea Database) (associate).




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

  • mexicana. Oecodoma mexicana Smith, F. 1858b: 185, pl. 10, fig. 20 (q.m.) MEXICO (no state data).
    • Norton, 1868c: 9 (s.w.).
    • Combination in Atta: Roger, 1863b: 35;
    • combination in Atta (Archeatta): Gonçalves, 1942: 343.
    • Junior synonym of fervens: Roger, 1863b: 35; Mayr, 1865: 81; Forel, 1885a: 362; Mayr, 1886d: 442; Dalla Torre, 1893: 152; Forel, 1899c: 33.
    • Subspecies of insularis: Emery, 1913b: 259; Emery, 1924d: 354.
    • Status as species: Mayr, 1863: 438; Norton, 1868a: 66; Norton, 1868c: 9; Wheeler, W.M. 1907c: 703; Wheeler, W.M. 1934f: 140; Wheeler, W.M. 1935g: 34; Gonçalves, 1942: 343; Borgmeier, 1950d: 261; Smith, M.R. 1951a: 832; Smith, M.R. 1958c: 138; Borgmeier, 1959b: 351 (redescription); Smith, M.R. 1967: 363; Kempf, 1972a: 27; Hunt & Snelling, 1975: 22; Smith, D.R. 1979: 1413; Cherrett & Cherrett, 1989: 53; Bolton, 1995b: 76; Branstetter & Sáenz, 2012: 257.


Female. Length 8-9 lines. Obscurely ferruginous, nearly black;closely resembling Atta cephalotes, but the thorax is more elongate; the second node of the abdomen wider, with the lateral angels produced and acute; the base of the abdomen truncated, the first segment longer than broad; in other respects resembling Atta cephalotes, but more hairy or downy.

Male. In size and form resembling the male of Atta cephalotes but of a uniform pale reddish yellow; the second abdominal node much wider.

The insect described as Atta laevigata is probably the worker of this species; in the Museum are several specimens from Mexico.


References based on Global Ant Biodiversity Informatics

  • Alatorre-Bracamontes, C.E. and M Vasquez-Bolanos. 2010. Lista comentada de las hormigas (Hymenoptera: Formicidae) del norte de México. Dugesiana 17(1):9-36
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