• Lectotype designation: Hita Garcia & Fisher, 2014a: 90.
• Combination in Decamorium: Wheeler, 1922: 906.
• Combination in Tetramorium: Hita Garcia & Fisher, 2014a: 90.
• Subspecies of Tetramorium decem: Arnold, 1917: 351; Wheeler, 1922: 906; Emery, 1924f: 289.
• Junior synonym of Tetramorium decem: Bolton, 1976: 298; Bolton, 1995b: 169.
• Status as species: Hita Garcia & Fisher, 2014a: 90 (redescription).

Obsolete combinations

• Decamorium decem ultor
• Tetramorium decem ultor

Citations

• Arnold, G. 1917. A monograph of the Formicidae of South Africa. Part III. Myrmicinae. Annals of the South African Museum 14:271-402. PDF
• Bolton, B. 1976. The ant tribe Tetramoriini (Hymenoptera: Formicidae). Constituent genera, review of smaller genera and revision of Triglyphothrix Forel. Bulletin of the British Museum (Natural History). Entomology 34:281-379. PDF
• 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
• Forel, A. 1913k. Ameisen aus Rhodesia, Kapland usw. (Hym.) gesammelt von Herrn G. Arnold, Dr. H. Brauns und Anderen. Deutsche Entomologische Zeitschrift 1913(Suppl.):203-225. PDF
• Hita Garcia, F.; Fisher, B. L. 2014a. The ant genus Tetramorium Mayr in the Afrotropical region (Hymenoptera, Formicidae, Myrmicinae): synonymisation of Decamorium Forel under Tetramorium, and taxonomic revision of the T. decem species group. ZooKeys 411:67-103. PDF
• Wheeler, W. M. 1922. Ants of the American Museum Congo expedition. New York: Bulletin of the American Museum of Natural History, 1139.