• Wheeler, 1907d: 707 (q.m.); Wheeler, 1949: 673 (l.)
• Combination in Atta (Trachymyrmex): Wheeler, 1907d: 706; Forel, 1912f: 182.
• Combination in Cyphomyrmex (Trachymyrmex): Emery, 1924f: 345.
• Combination in Trachymyrmex: Gallardo, 1916c: 242; Creighton, 1950a: 321; Solomon et al., 2019: 948.
• Subspecies of Atta tardigrada: Dalla Torre, 1893: 154.
• Junior synonym of Atta tardigrada: Forel, 1885a: 358; Mayr, 1886d: 442; Cresson, 1887: 259; Emery, 1895d: 329.
• Status as species: Wheeler, 1902g: 29; Wheeler, 1904f: 303; Wheeler, 1905j: 386; Wheeler, 1907d: 706 (redescription); Wheeler, 1910a: 568; Wheeler, 1911i: 245; Wheeler, 1913d: 115; Emery, 1924f: 345; Wheeler, 1932a: 12; Wesson & Wesson, 1940: 99; Creighton, 1950a: 321; Smith, 1951c: 831; Smith, 1958c: 138; Weber, 1958b: 52; Carter, 1962a: 7 (in list); Smith, 1967a: 363; Smith, 1979: 1411; Petralia & Vinson, 1980: 383; DuBois & LaBerge, 1988: 143; Deyrup et al., 1989: 98; Bolton, 1995b: 421; Deyrup, 2003: 47; Coovert, 2005: 101; MacGown & Forster, 2005: 69; Rabeling et al., 2007: 17 (redescription); Deyrup, 2017: 155.
• Senior synonym of Trachymyrmex septentrionalis obscurior: Weber, 1958b: 52; Smith, 1967a: 363; Smith, 1979: 1411; Bolton, 1995b: 421; Coovert, 2005: 101; Rabeling et al., 2007: 17.
• Senior synonym of Trachymyrmex septentrionalis seminole: Weber, 1958b: 52; Smith, 1967a: 363; Smith, 1979: 1412; Bolton, 1995b: 421; Rabeling et al., 2007: 17.
• Senior synonym of Trachymyrmex septentrionalis vertebrata: Creighton, 1950a: 323; Weber, 1958b: 53; Smith, 1958c: 138; Smith, 1979: 1412; Bolton, 1995b: 421; Rabeling et al., 2007: 17.
• Synonym of Trachymyrmex virginiana (nomen oblitum): Wheeler, 1902g: 29; Wheeler, 1907d: 706; Emery, 1924f: 345; Smith, 1951c: 831; Smith, 1979: 1411; Bolton, 1995b: 421; Rabeling et al., 2007: 17 (nomen oblitum).
• Material of the unavailable name Trachymyrmex septentrionalis obscurior crystallina referred here by Weber, 1958b: 53; Smith, 1979: 1412; Rabeling et al., 2007: 17.
• Material of the unavailable name Trachymyrmex septentrionalis obscurior irrorata referred here by Weber, 1958b: 53; Smith, 1979: 1412; Rabeling et al., 2007: 17.

Junior synonyms

• Trachymyrmex septentrionalis obscurior (Wheeler, 1907)
  Obsolete combination(s): Atta septentrionalis obscurior
• Trachymyrmex septentrionalis seminole (Smith, 1930)
• Trachymyrmex septentrionalis vertebrata (Wheeler, 1911)
  Obsolete combination(s): Atta septentrionalis vertebrata
• Trachymyrmex virginiana (Buckley, 1867)
  Obsolete combination(s): Oecodoma virginiana

Obsolete combinations

• Atta septentrionalis

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Carter, W. G. 1962a. Ants of the North Carolina Piedmont. Journal of the Elisha Mitchell Scientific Society 78:1-18. PDF
• Coovert, G. A. 2005. The ants of Ohio. Bulletin of the Ohio Biological Survey (New Series) 15 (2):1-196. PDF
• Creighton, W. S. 1950a. The ants of North America. Bulletin of the Museum of Comparative Zoology 104:1-585. PDF
• Cresson, E. T. Sr. 1887. Synopsis of the families and genera of the Hymenoptera of America, north of Mexico, together with a catalogue of the described species, and bibliography. Transactions of the American Entomological Society, Suppl. Vol. 1887:1-351. PDF
• Dalla Torre, K. W. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. PDF
• Deyrup, M. 2003. An updated list of Florida ants (Hymenoptera: Formicidae). Florida Entomologist 86:43-48. PDF
• Deyrup, M. 2017. Ants of Florida. Identification and natural history. Boca Raton, Florida: CRC Press (Taylor & Francis group), 423 pp.
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• DuBois, M. B.; LaBerge, W. E. 1988. Annotated list of ants in Illinois (Hymenoptera: Formicidae). Pp. 133-156 in: Trager, J. C. (ed.) 1988. Advances in myrmecology. Leiden: E. J. Brill, xxvii + 551 pp.
• Emery, C. 1895d. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. (Schluss). Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 8:257-360. PDF
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• Forel, A. 1885a ("1884"). Études myrmécologiques en 1884 avec une description des organes sensoriels des antennes. Bulletin de la Société Vaudoise des Sciences Naturelles 20:316-380. PDF
• Forel, A. 1912f. Formicides néotropiques. Part II. 3me sous-famille Myrmicinae Lep. (Attini, Dacetii, Cryptocerini). Mémoires de la Société Entomologique de Belgique 19:179-209. PDF
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• Smith, D. R. 1979. Superfamily Formicoidea. Pp. 1323-1467 in: Krombein, K. V.; Hurd, P. D.; Smith, D. R.; Burks, B. D. (eds.) 1979. Catalog of Hymenoptera in America north of Mexico. Volume 2. Apocrita (Aculeata). Washington, D.C.: Smithsonian Institution Press, pp. i-xvi, 1199-2209.
• Smith, M. R. 1951c. Family Formicidae. Pp. 778-875 in: Muesebeck, C. F. W.; Krombein, K. V.; Townes, H. K. (eds.) 1951. Hymenoptera of America north of Mexico. Synoptic catalogue. United States Department of Agriculture. Agriculture Monograph 2:1-1420. PDF
• Smith, M. R. 1958c. Family Formicidae. Pp. 108-162 in: Krombein, K. V. (ed.) 1958. Hymenoptera of America north of Mexico. Synoptic catalogue. First supplement. United States Department of Agriculture. Agriculture Monograph 2(suppl. 1):1-305. PDF
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• Solomon, S. E.; Rabeling, C.; Sosa-Calvo, J.; Lopes, C. T.; Rodrigues, A.; Vasconcelos, H. L.; Bacci, M., Jr.; Mueller, U. G.; Schultz, T. R. 2019. The molecular phylogenetics of Trachymyrmex Forel ants and their fungal cultivars provide insights into the origin and coevolutionary history of ‘higher-attine’ ant agriculture. Systematic Entomology 44:939-956. 10.1111/syen.12370 PDF
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