Leptothorax (Myrafant) brevispinosus Mackay, 2000: 323, figs. 24, 95 (w.q.m.) MEXICO (Michoacan). Nearctic.

Primary type information: Type-material: holotype worker. Type-locality: Mexico: Michoacan, Parque Nac. Cerro Gárnica, 2700 m., 25.v.1988, #10357 (W. Mackay). Type-depository: MCZC. Secondary type information: Paratype-material: 33 paratype workers, 1 paratype queen, 3 paratype males. Paratype-locality: same as for holotype. Paratype-depositories: MCZC, MHNG, UNAM, USNM, WEMC.