Brachymyrmex coactus

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Brachymyrmex coactus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Myrmelachistini
Genus: Brachymyrmex
Species: B. coactus
Binomial name
Brachymyrmex coactus
Mayr, 1887

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Specimen Labels




Distribution based on Regional Taxon Lists

Neotropical Region: Argentina, Bolivia (type locality), Brazil (type locality), Costa Rica (type locality), Guyana, Panama, Paraguay, Peru.

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.

  • coactus. Brachymyrmex coactus Mayr, 1887: 523 (w.q.m.) BRAZIL.
    • Senior synonym of constrictus, nictitans, robustus: Ortiz-Sepulveda et al., 2019: 34.
  • constrictus. Brachymyrmex constrictus Santschi, 1923b: 671, figs. 5, 38, 61 (w.) BOLIVIA.
    • Junior synonym of coactus: Ortiz-Sepulveda et al., 2019: 35.
  • nictitans. Brachymyrmex coactus var. nictitans Emery, 1906c: 178 (w.) COSTA RICA.
    • Subspecies of coactus: Santschi, 1923b: 670; Emery, 1925b: 41; Kempf, 1972a: 38; Bolton, 1995b: 82.
    • Junior synonym of coactus: Ortiz-Sepulveda et al., 2019: 34.
  • robustus. Brachymyrmex coactus var. robustus Santschi, 1923c: 272 (w.) BRAZIL.
    • Junior synonym of coactus: Ortiz-Sepulveda et al., 2019: 35.



  • Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 82, catalogue)
  • Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 37: 511-632 (page 523, worker, queen, male described)