Myrmecocystus mexicanus subsp. idahoensis Cole, 1936b: 118 (w.q.m.) U.S.A. (Idaho). Nearctic.

Primary type information: Primary type material: holotype worker. Primary type locality: U.S.A.: Idaho, Hollister (A.C. Cole). Primary type depository: LACM. Secondary type information: Secondary type material: paratype workers, paratype queens, paratype males (numbers not stated, “numerous”). Secondary type locality: same as for holotype. Secondary type depositories: LACM, OSUC, USNM.