This species is found in the Sierra de Los Tuxtlas at Volcán San Martin, southern Veracruz, Mexico. It is known from 500-1,180m asl. There is also one specimen from Toledo District in Belize that has been assigned to this species, but further taxonomic work is required to confirm the identity of this population, which probably belongs to another species.
Habitat and Ecology
This species inhabits tropical rainforest on the slopes of Volcán San Martin. It is probably a stream-breeding species.
This is a rare species, and it is known from only two specimens collected at the type locality.
Disturbance and transformation of the original forest habitat, primarily due to agricultural development, is a major threat to this species in its range (outside Reserva de la Biósfera Los Tuxtlas).
The range of the species includes Reserva de la Biósfera Los Tuxtlas, which is quite well managed. However, protection and restoration of the Volcán Sán Martin and surrounding areas is urgently required to ensure the species' persistence. This species is protected by Mexican law under the "Special Protection" category (Pr).
This species was previously included in the genus Hyla but has recently been moved to the new genus Ecnomiohyla (Faivovich et al. 2005).
Julian Lee, Oscar Flores-Villela 2004. Ecnomiohyla valancifer. In: IUCN 2014