The male holotypes of the new species Rhiginia willinki, Rhiginia aimara, and Pothea (Brachypothea) andina are described. The first two species are from Peru, the third from Bolivia. The male genitalia of Pothea (Brachypothea) carvalhoi Carpintero are described and illustrated. Rhiginia guttata Carpintero and R. argentina Carpintero are declared junior synonyms of R. corrugata Maldonado and R. ruficoria Maldonado, respectively. A key to the species in Pothea (Brachypothea) is presented.