Primary type information:
Primary type material: lectotype worker (by designation of Snelling, 1976: 85). Primary type locality: lectotype U.S.A.: Arizona, Yuma, 26.xi.1910 (W.M. Wheeler). Primary type depository: AMNH.
Secondary type information:
Secondary type material: paralectotype workers (number not stated). Secondary type locality: same as for lectotype. Secondary type depositories: AMNH, LACM, MCZC.