Primary type information:
Primary type material: lectotype major worker (by designation of Wilson, 2003a: 600). Primary type locality: lectotype U.S.A.: Arizona, Tucson, Santa Cruz River, xi.1910 (W.M. Wheeler). Primary type depository: MCZC.
Secondary type information:
Secondary type material: 1 paralectotype minor worker. Secondary type locality: same as for lectotype. Secondary type depositories: AMNH, LACM, MCZC.
Type notes:
Original description cites 6 syntype major workers, 19 syntype minor workers.