Ischyomius hovorei new species (Coleoptera: Pythidae) is described from Costa Rica, (type locality: Costa Rica, Puntarenas Province, Estación Pittier). The new species is diagnosed, illustrated, and keyed. Ischyomius hovorei can be distinguished from sympatric species of Ischyomius by its distinctive coloration, deeply emarginate tarsomeres, and the relatively long apical elytral spine.