Formica microgyna Wheeler, 1903g: 645, fig. 3 (w.q.m.) U.S.A. (Colorado). Nearctic.

Primary type information: Primary type material: syntype workers, syntype queens (numbers not stated, “many”), 1 syntype male. Primary type locality: U.S.A.: Colorado, Manitou, 10-30.vii.(1903?) (W.M. Wheeler) (by restriction of Wheeler, 1913i: 467). Primary type depositories: AMNH, MCZC. Type notes: Other original syntype locality: U.S.A.: Colorado, Cheyenne Cañon, 10-30.vii.(1903?) (W.M. Wheeler).

Infrasubspecies

• F. m. m. recidiva Wheeler, 1913