• Combination in Myrmecia: Fabricius, 1804: 423.
• Combination in Odontomachus: Latreille, 1809: 128; Latreille, 1818b: 570.
• Status as species: Latreille, 1802a: 193; Fabricius, 1804: 423; Latreille, 1818a: 570; Lepeletier de Saint-Fargeau, 1835: 187; Le Guillou, 1842: 318.
• Junior synonym of Odontomachus haematodus: Smith, 1858a: 76; Roger, 1861a: 24; Gerstäcker, 1862: 503; Roger, 1863b: 22; Mayr, 1863a: 436; Mayr, 1865: 63; Mayr, 1872: 148; Forel, 1891c: 104; Dalla Torre, 1893: 50; Ruzsky, 1905b: 759; Wheeler, 1908a: 126; Emery, 1911e: 114; Gallardo, 1918c: 99; Wheeler, 1919f: 60; Wheeler, 1922: 793; Borgmeier, 1923: 78; Kempf, 1972b: 170.
• Senior synonym of Odontomachus bauri: Brandão, 1991: 363.
• [Note: Brandão gives Odontomachus bauri as senior synonym, but Odontomachus unispinosa has priority.]
• Unidentifiable taxon; incertae sedis in Odontomachus: Bolton, 1995b: 297.
• [Note: Latreille, 1802a: 194, suspected that, "cette fourmi n’est que le mulet de l’haematode de Linnée, ou une variété". Brown, 1976c: 102, suggests possible synonymy with Odontomachus bauri, but on p. 130 Brown suggests it is best regarded as a nomen oblitum.]

Obsolete combinations

• Formica unispinosa

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• 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.
• Brandão, C. R. F. 1991. Adendos ao catálogo abreviado das formigas da região Neotropical (Hymenoptera: Formicidae). Revista Brasileira de Entomologia 35:319-412. PDF
• Brown, W. L., Jr. 1976c. Contributions toward a reclassification of the Formicidae. Part VI. Ponerinae, tribe Ponerini, subtribe Odontomachiti. Section A. Introduction, subtribal characters. Genus Odontomachus. Studia Entomologica 19:67-171. PDF
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• Forel, A. 1891c. Les Formicides. [part]. In: Grandidier, A. 1891. Histoire physique, naturelle, et politique de Madagascar. Volume XX. Histoire naturelle des Hyménoptères. Deuxième partie (28e fascicule). Paris: Hachette et Cie, v + 237 pp. PDF
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