Myrmecocystus testaceus

Distribution
This taxon was described from U.S.A.

Nomenclature

 *  testaceus. Myrmecocystus melliger var. testaceus Emery, 1893i: 667 (w.) U.S.A. Snelling, R.R. 1976: 136 (q.m.). Junior synonym of semirufus: Creighton, 1950a: 449. Revived from synonymy, raised to species and senior synonym of mojave: Snelling, R.R. 1969a: 6. Senior synonym of idahoensis: Snelling, R.R. 1976: 135.
 * mojave. Myrmecocystus mexicanus subsp. mojave Wheeler, W.M. 1908d: 360 (w.) U.S.A. Wheeler, W.M. 1912d: 180 (q.m.); Wheeler, G.C. & Wheeler, J. 1968: 213 (l.). Raised to species: Creighton, 1950a: 448; Smith, M.R. 1951a: 856. Junior synonym of testaceus: Snelling, R.R. 1969a: 6.
 * idahoensis. Myrmecocystus mexicanus subsp. idahoensis Cole, 1936b: 118 (w.q.m.) U.S.A. Junior synonym of mojave: Creighton, 1950a: 448. Revived from synonymy and raised to species: Smith, M.R. 1951a: 854. Junior synonym of testaceus: Snelling, R.R. 1976: 135.