Primary type information:
Type-material: holotype worker. Type-locality: U.S.A.: Texas, Brewster County, Big Bend Nat. Park, Rio Grande Village (565 m.), 30.vii.1978 (J.V. Moody & O.F. Francke). Type-depository: CASC.
Secondary type information:
Paratype-material: 15 paratype workers. Paratype-locality: same as for holotype. Paratype-depositories: AMNH, CASC, LACM, MCZC, TTUL.