This species is known only from the Chimalapas region that includes the Sierra Atravesada in south-eastern Oaxaca and adjacent Chiapas, Mexico, at 850-1500m asl.
Habitat and Ecology
This stream-breeding amphibian inhabits low or moderate altitude streams in cloud forest or dry pine-oak forest, and takes refuge in bromeliads.
It is known to be common.
The main threat is deforestation resulting from logging, and the subsequent dessication of forest streams.
It does not occur in any protected areas; as with many other montane cloud and pine-oak forest patches in Mexico, there is an urgent need for the protection of the forest remnants in the Chimalapas region.
This species was previously within the genus Hyla but has recently been moved to the resurrected genus Exerodonta (Faivovich et al. 2005).
Antonio Muñoz Alonso, Luis Canseco-Márquez 2004. Exerodonta chimalapa. In: IUCN 2014