This species is only known from its type locality: between Chachapoyas and Bagua Grande Alva, on the slopes of the Cordillera Central above the Río Utcubamba Valley, Amazonas Region, Peru (Rivero 1991). It has been found at 1,000 m asl (Duellman 2004), and it is unknown whether it occurs more widely.
Habitat and Ecology
This is a diurnal, terrestrial species, reported from moist lowland tropical forest, although it is not known if it was collected in primary or secondary forest, nor whether or not it can adapt to modified habitats. It is thought to be associated with stream habitats, where the larvae presumably develop.
There is little information available on the population status and trends for this species, as it is known only from the specimens that constitute the type series.
The major threat to this species is habitat degradation: the type locality is highly disturbed by agricultural activities (including coffee plantations) and urbanization (establishment of settlements and townships).
This species is not currently known from any protected areas, although it might occur in the Bosque de Protección Alto Mayo (but further investigations are required to confirm this).
There is a need to protect habitat remnants at the type locality.
More information is needed on this species' distribution, population status, ecology, and threats. Further survey work is needed to determine if it occurs outside the vicinity of the type locality.
Red List Status
Data Deficient (DD)
Listed as Data Deficient in view of continuing uncertainties as to its extent of occurrence, population status and ecological requirements.
Grant et al. (2006) could not allocate it beyond Dendrobatoidea (Aromobatidae + Dendrobatidae), merely retaining it in a non-taxon "Colostethus".
IUCN SSC Amphibian Specialist Group 2018. Colostethus poecilonotus. The IUCN Red List of Threatened Species 2018: e.T55133A89200108. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T55133A89200108.en .Downloaded on 10 December 2018