Formica microgyna var. rasilis Wheeler, 1903g: 648 (w.q.m.) U.S.A. (Colorado). Nearctic.

Primary type information: Primary type material: syntype workers, syntype queens, syntype males (numbers not stated, “13 colonies”). Primary type localities: U.S.A.: Colorado, Manitou, 11.vii.-21.viii.(1903?) (W.M. Wheeler) (invalid restriction of type locality by Wheeler, 1913i: 469; no lectotype designated), U.S.A.: Colorado, between Broadmoor and Cheyenne Cañon (W.M. Wheeler), Colorado, Pike’s Peak (W.M. Wheeler). Primary type depositories: AMNH, LACM, MCZC. Type notes: In the original description Wheeler, 1903g cites 3 localities “in the neighborhood of Manitou”: Red Rock Cañon, Williams Cañon, and Ute Pass.

Infrasubspecies

• F. m. r. nahua Wheeler, 1913
• F. m. r. pinetorum Wheeler, 1917
• F. m. r. pullula Wheeler, 1913
• F. m. r. spicata Wheeler, 1913