This species is known from two localities in the Serrania de los Paraguas, in Valle del Cauca, Choco and adjacent Risaralda Departments in the Cordillera Occidental in Colombia, from 2,200-2,400m asl. It might be more widespread, but more survey work is needed to confirm this.
Habitat and Ecology
It is restricted to canopy forests on hill slopes, and may be associated with waterfalls. It occurs on low and high vegetation in the canopy, showing population fluctuations depending on weather conditions (during wet cycles it was rare, and during dry cycles it was common, suggesting that it is in the canopy during the wet cycle). It breeds by direct development.
For many years this species appeared inexplicably rare, but during an El Nino event in 1997 more than 50 were caught in an hour.
The habitat of this species is relatively secure at present, although if a planned road is built this will be a major threat to its habitat.
Its range includes Parque Nacional Natural Tatama. It should be noted that some other species of Eleutherodactylus that are associated with streams have undergone dramatic declines and disappearances, possibly due to chytridiomycosis, so the status of this species should be monitored carefully.
Fernando Castro, Maria Isabel Herrera, John Lynch 2004. Pristimantis ptochus. In: IUCN 2014