• [First available use of Formica rufa pratensis unicolor Ruzsky, 1914b; unavailable (infrasubspecific) name.]
• Subspecies of Formica pratensis: Ruzsky, 1946: 69.
• Junior synonym of Formica lugubris: Dlussky, 1967a: 91; Dlussky & Pisarski, 1971: 180; Bolton, 1995b: 205; Radchenko, 2016: 287; Seifert, 2021: 165.

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Dlussky, G. M. 1967a. Ants of the genus Formica (Hymenoptera, Formicidae, g. Formica). [In Russian.]. Moskva: Nauka Publishing House, 236 pp. PDF
• Dlussky, G. M.; Pisarski, B. 1971. Rewizja polskich gatunków mrówek (Hymenoptera: Formicidae) z rodzaju Formica L. Fragmenta Faunistica (Warsaw) 16:145-224. 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. 1926. A systematic list of the ants found in Siberia. I. Review of the species of the genera Camponotus (s. ext.) and Formica (s. str.). [In Russian.]. Izvestiya Tomskogo Gosudarstvennogo Universiteta 77:107-111. PDF
• Ruzsky, M. 1946. Ants of Tomsk province and contiguous localities. [In Russian.]. Trudy Tomskogo Gosudarstvennogo Universiteta 97:69-72. PDF
• Seifert, B. 2021. A taxonomic revision of the Palaearctic members of the Formica rufa group (Hymenoptera: Formicidae) – the famous mound-building red wood ants. Myrmecological News 31:133-179. 10.25849/myrmecol.news_031:133 PDF