Primary type information:
Primary type material: holotype queen. Primary type locality: U.S.A.: Montana, Lake McGregor (ca 35 mi. W Kalispell), 13.vii.1934 (W.S. Creighton). Primary type depositories: AMNH.
Secondary type information:
Secondary type material: 153 paratype workers, 2 paratype queens. Secondary type locality: same as for holotype. Secondary type depositories: AMNH, LACM, MCZC, USNM. Secondary type specimen: CASENT0903280.