• [First available use of Formica rufa rufa schmidti Ruzsky, 1920; unavailable (infrasubspecific) name.]
• [Junior primary homonym of †Liometopum schmidtii Heer, 1849.]
• Replacement name: Formica aquilonia Yarrow, 1955a.
• [Note: Formica aquilonia junior synonym of Formica rufa schmidti Ruzsky, 1926 (synonymy by Dlussky, 1967a: 90); hence Formica aquilonia first available replacement name (Bolton, 1995b: 191).]

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
• 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