Formica propinqua

Distribution
This taxon was described from the United States.

Nomenclature

 *  propinqua. Formica rufa subsp. propinqua Creighton, 1940a: 1, fig. 1 (w.) U.S.A. [First available use of Formica truncicola subsp. integroides var. propinqua Wheeler, W.M. 1917a: 538; unavailable name.] Cole, 1956f: 257 (q.m.). Subspecies of integroides: Creighton, 1950a: 490. Raised to species: Wheeler, G.C. & Wheeler, J. 1986g: 85; Mackay, Lowrie, et al. 1988: 112 (in key).

Additional References

 * [[Media:Cole 1956g.pdf|Cole, A. C., Jr. 1956g. Studies of Nevada ants. IV. Descriptions of sexual castes of three members of the rufa group of the genus Formica L. J. Tenn. Acad. Sci. 31: 257-260 PDF]]