Formicoxenus sibiricus

Distribution based on Regional Taxon Lists
Palaearctic Region: Russian Federation.

Nomenclature

 *  sibiricus. Leptothorax sibiricus Forel, 1899b: 306 (w.) RUSSIA. Combination in L. (Mychothorax): Emery, 1924d: 262; in Formicoxenus: Francoeur, Loiselle & Buschinger, 1985: 382. Junior synonym of hirticornis: Ruzsky, 1905b: 622. Revived from synonymy as subspecies of hirticornis: Emery, 1924d: 262. Revived status as species and senior synonym of orientalis: Francoeur, Loiselle & Buschinger, 1985: 382.
 * orientalis. Formicoxenus orientalis Dlussky, 1963: 193, figs. 6, 8 (w.) RUSSIA. Junior synonym of sibiricus: Francoeur, Loiselle & Buschinger, 1985: 382. [Kupyanskaya, 1990: 149 uses the name orientalis, apparently unaware of the revision by Francoeur, et al.; their synonymy is reaffirmed by Radchenko, 1994b: 111.]