Primary type information:
Primary type material: lectotype major worker (by designation of Wilson, 2003a: 392). Primary type locality: lectotype U.S.A.: Texas, Rio Grande canyon, Langtry (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, MCZC.
Original description cites “several” syntype major and minor workers.