Leptothorax (Leptothorax) canadensis var. yankee Emery, 1895d: 319 (w.q.) U.S.A. (South Dakota, Utah, Colorado). Nearctic.

Primary type information: Primary type material: syntype workers (number not stated), 1 syntype queen. Primary type localities: U.S.A.: South Dakota, Hill City (no collector’s name) (invalid restriction of type locality by Creighton, 1952a: 277; no lectotype designated), U.S.A.: Utah (no further data), U.S.A.: Colorado (no further data). Primary type depositories: AMNH, MCZC.