Platalina genovensium is one of the most endangered species of the subfamily Lonchophyllinae, currently known from a few localities on the western slopes of the Andes, and only 1 locality on the eastern side of the Peruvian Andes. Here, we report 9 new localities for this species, including 3 from the eastern slopes, which confirm the oriental distribution. Besides, a potential distribution model further suggests the wider presence of P. genovensium on the eastern slope of Peru, from the Marañón River to at least the Huánuco department; and on the western side, the model suggests the species probably occurs in Antofagasta, Chile, but it could also represent a false positive.