• Status as species: Dalla Torre, 1893: 139; Santschi, 1910c: 390; Wheeler, 1922: 199, 915; Emery, 1924f: 297; Weber, 1943d: 378; Bolton, 1974a: 48 (redescription); Bolton, 1982: 357 (in key); Bolton, 1995b: 139; Hita Garcia et al., 2013: 209.
• Senior synonym of Cataulacus pygmaeus bakusuensis: Bolton, 1974a: 48; Bolton, 1995b: 139.
• Senior synonym of Cataulacus pygmaeus chariensis: Bolton, 1974a: 48; Bolton, 1995b: 139.

Junior synonyms

• Cataulacus pygmaeus bakusuensis Forel, 1913
• Cataulacus pygmaeus chariensis Santschi, 1911

Citations

• André, Ern. 1890. Matériaux pour servir à la faune myrmécologique de Sierra-Leone (Afrique occidentale). Revue d'Entomologie (Caen) 9:311-327. PDF
• Bolton, B. 1974a. A revision of the Palaeotropical arboreal ant genus Cataulacus F. Smith (Hymenoptera: Formicidae). Bulletin of the British Museum (Natural History). Entomology 30:1-105. PDF
• Bolton, B. 1982. Afrotropical species of the myrmicine ant genera Cardiocondyla, Leptothorax, Melissotarsus, Messor and Cataulacus (Formicidae). Bulletin of the British Museum (Natural History). Entomology 45:307-370. PDF
• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Dalla Torre, K. W. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. PDF
• Emery, C. 1924f ("1922"). Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum 174C:207-397. PDF
• Hita Garcia, F.; Wiesel, E.; Fischer, G. 2013. The ants of Kenya (Hymenoptera: Formicidae)—faunal overview, first species checklist, bibliography, accounts for all genera, and discussion on taxonomy and zoogeography. Journal of East African Natural History 101 (2):127-222. PDF
• Santschi, F. 1910c ("1909"). Formicides nouveaux ou peu connus du Congo français. Annales de la Société Entomologique de France 78:349-400. PDF
• Weber, N. A. 1943d. The ants of the Imatong Mountains, Anglo-Egyptian Sudan. Bulletin of the Museum of Comparative Zoology 93:263-389. PDF
• Wheeler, W. M. 1922. Ants of the American Museum Congo expedition. New York: Bulletin of the American Museum of Natural History, 1139.