Formica ravida

Distribution
This taxon was described from the United States. This ant is found in California, Dakota, Colorado and New Mexico.

Nomenclature

 * haemorrhoidalis. Formica rufa subsp. haemorrhoidalis Creighton, 1940a: 1, fig. 1 (w.) U.S.A. [First available use of Formica rufa subsp. integra var. haemorrhoidalis Emery, 1893i: 652 (w.); Wheeler, W.M. 1913f: 441 (q.m.); unavailable name.] [Junior primary homonym of Formica haemorrhoidalis Latreille, 1802c: 276, above.] Replacement name: ravida Creighton, 1940a: 1 (designated first available replacement name by Bolton, 1995b: 202, as haemorrhoidalis Creighton was raised to species and made senior synonym of ravida and tahoensis by Brown, 1965d: 181).
 *  ravida. Formica rufa subsp. ravida Creighton, 1940a: 1, fig. 1 (w.q.m.) U.S.A. [First available use of Formica truncicola subsp. integroides var. ravida Wheeler, W.M. 1913f: 560; unavailable name.] Subspecies of obscuripes: Creighton, 1950a: 493. Junior synonym of haemorrhoidalis Creighton: Brown, 1965d: 181. [F. haemorrhoidalis Creighton, 1940a: 1, junior primary homonym of F. haemorrhoidalis Latreille, 1802c: 276.] F. ravida designated as first available replacement name and senior synonym of tahoensis: Bolton, 1995b: 202.
 * tahoensis. Formica rufa subsp. tahoensis Creighton, 1940a: 1, fig. 1 (w.q.) U.S.A. [First available use of Formica truncicola subsp. integroides var. tahoensis Wheeler, W.M. 1917a: 538; unavailable name.] Cole, 1956g: 260 (q.m.). Subspecies of integra: Creighton, 1950a: 488. Junior synonym of haemorrhoidalis: Brown, 1965d: 181; of ravida: Bolton, 1995b: 205.

Additional References

 * [[Media:Brown 1965d.pdf|Brown, W. L., Jr. 1965d. Studies on North American ants. I. The Formica integra subgroup. Entomol. News 76: 181-186 PDF]]