• Combination in Cyphomyrmex (Trachymyrmex): Emery, 1924f: 345.
• Combination in Trachymyrmex: Gallardo, 1916c: 242; Kempf, 1972b: 253.
• Combination in Paratrachymyrmex: Solomon et al., 2019: 948.
• Status as species: Emery, 1924f: 345; Kempf, 1972b: 253; Bolton, 1995b: 420; Fernández & Serna, 2019: 878.

Obsolete combinations

• Atta irmgardae
• Trachymyrmex irmgardae

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Emery, C. 1924f ("1922"). Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum 174C:207-397. PDF
• Fernández, F.; Serna, F. J. 2019. Subfamilia Myrmicinae. Capítulo 27. Pp. 791-888 in: Fernández, F.; Guerrero, R. J.; Delsinne, T. (eds.) 2019d. Hormigas de Colombia. Bogotá: Universidad Nacional de Colombia, 1198 pp. 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
• Gallardo, A. 1916c. Notas acerca de la hormiga Trachymyrmex pruinosus Emery. Anales del Museo Nacional de Historia Natural de Buenos Aires 28:241-252. PDF
• Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Studia Entomologica 15:3-344. PDF
• 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