Temnothorax pilicornis Prebus, 2021b: 41 (in key), 255, fig. 132 (w.) MEXICO (Baja California Sur). Nearctic.

Primary type information: Type-material: holotype worker. Type-locality: Mexico: Baja California Sur, Isla Carmen, S end, 25.866667 N 111.216667 W, 20 m, 18 July 1999, pitfall trap, #245 (A.M. Boulton). Type-depository: CASC. Type-specimen: CASENT0756186 (top specimen on pin). Secondary type information: Paratype-material: 1 paratype worker. Paratype-locality: same as for holotype (same pin as holotype). Paratype-depository: CASC. Paratype-specimen: CASENT0756186 (bottom specimen on pin).