Temnothorax obtusigaster Prebus, 2021b: 49 (in key), 107, figs. 95D, 99 (w.dq.) MEXICO (Baja California Sur). Neotropic.

Primary type information: Type-material: holotype worker. Type-locality: Mexico: Baja California Sur: 0.4 km S Sierra San Francisco, 27.600000 N 113.016667 W, 1100 m, 20.ii.1994, 6 m high 3 cm dead branch Quercus oblongifolia, #BCS 197 (R.A. Johnson). Type-depository: CASC. Type-specimen: CASENT0758654 (bottom specimen on pin). Secondary type information: Paratype-material: 11 paratype workers, 1 paratype dealate queen. Paratype-locality: 1 paratype worker (top specimen on pin) with same data as holotype (on same pin as holotype); 10 paratype workers, 1 paratype dealate queen with same data as holotype. Paratype-depositories and specimens: CASC: CASENT0758654 (worker, top specimen on pin), CASENT0869104 (workers, dealate queen); MCZC: MCZENT00561743 (workers), CASENT0758322 (workers); UCDC: CASENT0104939 (workers).