• Combination in Acanthomyops: Ruzsky, 1925b: 44.
• Combination in Lasius (Chthonolasius): Ruzsky, 1912: 633; Ruzsky, 1914a: 61; Emery, 1925d: 234.
• Subspecies of Lasius umbratus: Ruzsky, 1905b: 287; Ruzsky, 1914a: 61; Emery, 1925d: 234; Stärcke, 1937: 57.
• Status as species: Ruzsky, 1925b: 44; Ruzsky, 1946: 70.
• Subspecies of Lasius bicornis: Menozzi, 1939a: 314 (in key).
• Junior synonym of Lasius umbratus: Wilson, 1955a: 150; Smith, 1979: 1439; Arakelian, 1994: 122; Bolton, 1995b: 222; Radchenko, 2016: 373.

Obsolete combinations

• Lasius umbratus exacutus

Citations

• Arakelian, G. R. 1994. Fauna of the Republic of Armenia. Hymenopterous insects. Ants (Formicidae). [In Russian.]. Erevan: Gitutium, 153 pp. PDF
• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183:1-302. PDF
• Menozzi, C. 1939a. Formiche dell'Himalaya e del Karakorum raccolte dalla Spedizione italiana comandata da S. A. R. il Duca di Spoleto (1929). Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano 78:285-345. PDF
• Radchenko, A. G. 2016. Ants (Hymenoptera, Formicidae) of Ukraine. National Academy of Sciences of Ukraine. Kiev: I. I. Schmalhausen Institute of Zoology, 496 pp.
• Ruzsky, M. 1902d. Material on the ant fauna of the Caucasus and the Crimea. [In Russian.]. Protokoly Obshchestva Estestvoispytatelei pri Imperatorskom Kazanskom Universitete 206(suppl.):1-33. PDF
• Ruzsky, M. 1905b. The ants of Russia. (Formicariae Imperii Rossici). Systematics, geography and data on the biology of Russian ants. Part I. [In Russian.]. Trudy Obshchestva Estestvoispytatelei pri Imperatorskom Kazanskom Universitete 38(4-6):1-800.
• Ruzsky, M. 1912. Myrmecological notes. [In Russian.]. Uchenye Zapiski Kazanskago Veterinarnago Instituta 29:629-636. PDF
• Ruzsky, M. 1914a ("1913"). Myrmekologische Notizen. Archiv für Naturgeschichte (A)79(9):58-63. PDF
• Ruzsky, M. 1925b. New data on the ant fauna of Siberia. [In Russian.]. Russkoe Entomologicheskoe Obozrenie 19:41-46. PDF
• Ruzsky, M. 1946. Ants of Tomsk province and contiguous localities. [In Russian.]. Trudy Tomskogo Gosudarstvennogo Universiteta 97:69-72. PDF
• 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.
• Stärcke, A. 1937. Retouches sur quelques fourmis d'Europe. II. Lasius groupe umbratus Nylander. Tijdschrift voor Entomologie 80:38-72. PDF
• Wilson, E. O. 1955a. A monographic revision of the ant genus Lasius. Bulletin of the Museum of Comparative Zoology 113:1-201. PDF