This species is known from the lowlands of west-central Guyana, including the base of Mount Wokomung (05° 04' 53" N, 59° 50' 28" W, 680-698m), in the Pakaraima Mountains. It has been recorded up to 1,400m asl.
Habitat and Ecology
An inhabitant of lowland and montane primary forest, this species is usually associated with streams. Individuals have been found on rocks in streams and along the banks. The females carry the eggs on their back and juveniles develop fully on their mother's back. Kok et al. (2006) report on a female carrying 25 eggs on her back.
The species is abundant in suitable habitat at lower elevations (MacCulloch et al., 2006).
There are no known threats to the species overall, although it might be threatened locally. However, it occurs in a region of very limited human impact.
The range of the species includes Kaieteur Falls National Park. More research into the species' Extent of Occurrence, ecological requirements and population status is needed.
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its relatively wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
This genus has recently been moved from the family Hylidae (Faivovich, et al., 2005).
Robert Reynolds, Marinus Hoogmoed, Ross MacCulloch, Philippe Gaucher 2010. Stefania evansi. The IUCN Red List of Threatened Species 2010: e.T56026A11413158. http://dx.doi.org/10.2305/IUCN.UK.2010-2.RLTS.T56026A11413158.en .Downloaded on 21 January 2019