Formica mucescens

Identification
This species can be recognized as there are few hairs on the tibiae, where they are restricted to two rows on the flexor surface. The gaster is covered with short, bristly hairs, in which the distance between the tips is less than the lengths of the hairs. (Mackay and Mackay 2002)

Distribution
United States. Utah and Colorado.

Distribution based on Regional Taxon Lists
Nearctic Region: United States.

Habitat
Found in open prairies up to ponderosa pine forests. (Mackay and Mackay 2002)

Nomenclature

 *  mucescens. Formica truncicola subsp. mucescens Wheeler, W.M. 1913f: 442 (w.q.m.) U.S.A. Subspecies of rufa: Creighton, 1940a: 3. Raised to species: Creighton, 1950a: 491.