Two new species of Epipocus Germar (Coleoptera: Endomychidae) are described: Epipocus olmecusnew species from Veracruz, Mexico, and E. costatusnew species from Puntarenas, Costa Rica. The species groups of Epipocus proposed by Strohecker are discussed and a modified key to the E. rufitarsis group accommodating these two new species is provided.