This species is known from two localities. The first is the type locality: Río Palenque, 47km south of Santo Domingo de los Colorados, in Pichincha Province, north-western Ecuador, at 170m asl. The second is Montañas de Bilsa, in Esmeraldas Province. It is likely to occur at least a little more widely. This species has been recorded from 225-450m asl.
Habitat and Ecology
These frogs are apparently restricted to creek systems in tropical wet forest. At the type locality, the forest along these creeks has a somewhat broken canopy with significant amounts of bamboo and other secondary growth vegetation mixed with the tall trees. The relief is rather steep and much of the openness of the canopy appears to be due to tree falls, although there has been some cutting in the area (Vigle and Miyata 1980). The eggs are laid terrestrially and the larvae are then deposited in creeks and streams where they develop further.
It is rare. In July 2005 it was again recorded at the type locality in small numbers (Delia and Cisneros-Heredia pers. comm.).
The major threats to this species’ habitat are agricultural development (both the cultivation of crops and the rearing of livestock), and logging. The type locality has been completely destroyed by a banana plantation.
Its range includes the protected area of Reserva Ecológica Mache-Chindul. Further taxonomic research is required to determine whether or not this species is conspecific with Colostethus whymperi.
Diego Cisneros-Heredia, Ana Almendáriz, Mario Yánez-Muñoz, Luis A. Coloma, Santiago Ron 2004. Ameerega erythromos. In: IUCN 2014