Leptothorax (Leptothorax) angustinodus Cole, 1956b: 28 (w.q.) U.S.A. (Arizona). Nearctic.

Primary type information: Type-material: holotype worker. Type-locality: U.S.A.: Arizona, Chiricahua Mts, nr Rustler’s Park, 2.viii.1954, AR-201 (A.C. Cole). Type-depository: LACM. Secondary type information: Paratype-material: 108 paratype workers, 3 paratype queens. Paratype-locality: 55 paratype workers, 1 paratype queen with same data as holotype, 53 paratype workers, 2 paratype queens with same data as holotype but AR-273. Paratype-depositories: AMNH, LACM, MCZC, USNM.