Temnothorax achii Prebus, 2021b: 56 (in key), 175, figs. 114A, 115 (w.) GUATEMALA. Neotropic.

Primary type information: Type-material: holotype worker. Type-locality: Guatemala: El Progreso, 3.7 km SW Morazán, 14.9051 N 90.15362 W, 460 m, 7.vii.2007, tropical dry forest, ex sifted leaf litter, #6002-s (J. Longino). Type-depository: CASC. Type-specimen: JTLC000009876. Secondary type information: Paratype-material: 5 paratype workers. Paratype-locality: 4 paratype workers with same data as holotype; 1 paratype worker with same data as holotype, except tropical dry scrub, ex sifted leaf litter, #626-12 (M.G. Branstetter). Paratype-depositories and specimens: LACM: CASENT0869159; MCZC: JTLC000009871; UCDC: CASENT0600922; USNM: JTLC000009906; UVGC: CASENT0869160.