Discovery of a new population of the Critically Endangered frog Insuetophrynus acarpicus Barrio, 1970 (Anura: Cycloramphidae): latitudinal and altitudinal extension in the Valdivian Coastal Range, Southern Chile

Abstract

A new population of the Critically Endangered anuran species Insuetophrynus acarpicus Barrio, 1970 was discovered during a field survey at Valdivian Coastal Range, Los Ríos Region, Southern Chile. Until now, only three populations have been reported for the species. The new founding described in this paper, which extends the latitudinal limit 21 km to the southwest, and its altitudinal range over 486 m a.s.l, constitutes a very important discovery since the species is considered one of the most threatened species in the country and the world.