Formica aenescens Nylander, 1849: 37 (w.q.m.) RUSSIA. Palearctic.

Primary type information: Primary type material: syntype workers, syntype queen(s), syntype male(s) (numbers not stated). Primary type locality: Russia: “E Rossia meridionali” (no further data) (V. de Motschoulsky). Primary type depository: ZMHF. Type notes: Radchenko, 2007: 36, cites 1 worker, 1 male syntypes in ZMHF.

Infrasubspecies

• M. c. a. aterrimus Karavaiev, 1916
• M. c. a. creticus Emery, 1906
• M. c. a. flavigastra Karavaiev, 1924