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… 6 colonies”), 1 syntype male. Primary type localities: U.S.A.: Colorado, Manitou, 10-30.vii.(1903?) (W.M. Wheeler) (invalid restriction of type locality by Wheeler, 1913i: 467; no lectotype designated), U.S.A.: Colorado, Cheyenne Cañon, 10-30.vii.(1903?) (W.M. Wheeler). Primary type depositories: AMNH, MCZC.

Infrasubspecies

• F. m. m. recidiva Wheeler, 1913