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This species is currently known only from two localities: San Pedro, Cosnipata (Cuzco Department), and San Gaban (Puno Department) in south-eastern Peru. Its altitudinal range is 820-1,480 m asl.

It is uncommon.

This is a diurnal, riparian species of primary cloud and montane forest, which presumably lays terrestrial eggs, with the larvae then being transported to streams for development.

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In San Gaban it is mainly affected by agricultural activities (mosty smallholder cultivation of coffee).

• 2.1.2 Small-holder farming

A locality recorded for Cuzco is within Parque Nacional Manu.

• 2.1 Site/area management

Listed as Data Deficient as it has been recently described, there is an absence of information on its extent of occurrence, status and ecological requirements.

• Grant, T. and Rodríguez, L.O. 2001. Two new species of frogs of the genus Colostethus (Dendrobatidae) from Peru and a redescription of C. trilineatus (Boulenger, 1883). American Museum Novitates: 1-24.
• Lötters, S., Morales, V.R. and Proy, C. 2003. Another new riparian dendrobatid frog species from the upper Amazon basin of Peru. Journal of Herpetology: 707-713.