Abstract

A new record of the Endangered, Chilean endemic Insuetophrynus acarpicus (Barrio 1970) is reported from Alerce Costero National Park, Chile. This species of frog is one of the most threatened anurans in the world, and, consequently, any new record of this species is highly important for assessing its known distribution and proposing urgent conservation actions. The new record is the first known site in the Chaihuin river basin, 15 km northwest of a site described by Segura in 2017. The new record fills a gap of the known distribution of I. acarpicus.