Leptothorax (Myrafant) adustus Mackay, 2000: 309, figs. 31, 32, 35, 80, 81 (w.q.m.) MEXICO (Chihuahua). Neotropic.

Primary type information: Type-material: holotype worker. Type-locality: Mexico: Chihuahua, Municipio Janos, 7 km. S San Lorenzo, 18.v.1982 (W. & E. Mackay). Type-depository: MCZC. Secondary type information: Paratype-material: 14 paratype workers, 4 paratype queens, 15 paratype males. Paratype-locality: same as for holotype. Paratype-depositories: CASC, CICI, LACM, MCZC, UNAM, USNM, WEMC.