Formica truncicola subsp. mucescens Wheeler, 1913i: 442 (w.q.m.) U.S.A. (Colorado). Nearctic.

Primary type information: Primary type material: syntype workers, syntype queens, syntype males (numbers not stated). Primary type locality: U.S.A.: Colorado, Colorado Springs (W.M. Wheeler). Primary type depositories: AMNH, LACM, MCZC.