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.
Red List Status
Listed as Endangered because its Extent of Occurrence is less than 5,000 km2, all individuals are in fewer than five locations, and there is continuing decline in the extent and quality of its habitat in Oaxaca and Chiapas, Mexico.
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. The IUCN Red List of Threatened Species 2004: e.T55444A11312442. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T55444A11312442.en .Downloaded on 19 January 2019