This species is known from two localities in Andean Chile: Cautin (at a latitude of 38° 50'S), and Puyehue. Published records from Isla Wellington (at a latitude of 50° 00'S, Diaz and Nunez 1988) do not refer to this species. It has been recorded from altitudes of 500-1,000m asl. It is possible that Argentinean populations of Alsodes from the forests of Neuquén and Río Negro Provinces might belong to A. verrucosus, although until this can be verified these populations have not been included in attempts to map its range.
Habitat and Ecology
It occurs under logs and near damp areas in temperate Nothofagus forest, and reproduces by larval development in cold deep streams.
The population status of this species is not well known. Five adults were collected in Puyehue during 2001.
Deforestation due to logging is a major threat. Argentinean populations possibly referable to this species are threatened by introductions of predatory trout.
This species is known to occur in Parque Nacional Puyehue. There is a need to determine whether or not Argentinian populations of Alsodes from the forests of Neuquén and Río Negro Provinces are referable to this species.
Herman Núñez, Alberto Veloso, Jose Núñez, Ramón Formas, Carmen Úbeda, Esteban Lavilla 2010. Alsodes verrucosus. In: IUCN 2014