Two new distinctive species of the darkling beetle genus Hypogena Dejean (Coleoptera: Tenebrionidae) are described from unique males, H. triceratops sp. nov., and H. cat sp. nov. Both are named in honor of tenebrionid specialist Charles A. Triplehorn. Images of the holotypes are provided, with comparisons to other known three-horned species of the genus. Both specimens were collected at the Rio Tambopata Reserve, Madre de Dios, Peru.