• Lectotype designation: Wilson, 1955a: 88.
• [Justified emendation of spelling to Lasius obscuratus by B. Bolton.]
• Combination in Lasius (Lasius): Seifert, 2020a: 16.
• Junior synonym of Lasius alienus: Wilson, 1955a: 78; Smith, 1979: 1435.
• Status as species: Seifert, 1992b: 21 (redescription); Bolton, 1995b: 225; Collingwood & Heatwole, 2002: 12; Gratiashvili & Barjadze, 2008: 136; Guénard & Dunn, 2012: 33; Borowiec, 2014: 89; Bračko, 2019: 170; Seifert, 2020a: 55.
• Senior synonym of Lasius gebaueri: Seifert, 2020a: 55.

Junior synonyms

• Lasius gebaueri Seifert, 1992

Obsolete combinations

• Lasius brunneus obscuratus

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Borowiec, L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus (Wroclaw) 25 (1-2):1-340. PDF
• Bračko, G. 2019. New data on the ant fauna (Hymenoptera: Formicidae) of Azerbaijan. Caucasian Entomological Bulletin 15 (1):165-175. 10.23885/181433262019151-165175 PDF
• Collingwood, C.; Heatwole, H. 2002 ("2000"). Ants from northwestern China (Hymenoptera, Formicidae). Psyche (Cambridge) 103:1-24. PDF
• Gratiashvili, N.; Barjadze, S. 2008. Checklist of the ants (Formicidae Latreille, 1809) of Georgia. Proceedings of the Institute of Zoology (Tbilisi) 23:130-146. PDF
• Guénard, B.; Dunn, R. R. 2012. A checklist of the ants of China. Zootaxa 3358:1-77. PDF
• Seifert, B. 1992b. A taxonomic revision of the Palaearctic members of the ant subgenus Lasius s.str. (Hymenoptera: Formicidae). Abhandlungen und Berichte des Naturkundemuseums Görlitz 66(5):1-67. PDF
• Seifert, B. 2020a. A taxonomic revision of the Palaearctic members of the subgenus Lasius s.str. (Hymenoptera, Formicidae). Soil Organisms 92 (1):15-86. 10.25674/so92iss1pp15 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.
• Stitz, H. 1930a. Entomologische Ergebnisse der Deutsch-Russischen Alai-Pamir Expedition 1928 (1). 5. Hymenoptera III. Formicidae. Mitteilungen aus dem Zoologischen Museum in Berlin 16:238-240. PDF
• Wilson, E. O. 1955a. A monographic revision of the ant genus Lasius. Bulletin of the Museum of Comparative Zoology 113:1-201. PDF