This species occurs in eastern Brazil, from extreme southern Pernambuco to Rio Grande do Sul, inland to include eastern and central Minas Gerais. It ranges up to 800m asl.
Habitat and Ecology
It is a species of primary and secondary forest and forest edge, living on vegetation near waterbodies. It is an explosive breeder, using temporary and permanent ponds. The egg clutches are laid floating on the water.
It is an abundant species.
The only significant threats are clear cutting and water pollution, but this species is not seriously at risk.
It occurs in many protected areas.
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its wide distribution, tolerance of a degree of habitat modification, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
This species was previously within the genus Phrynohyas which was recently synonymized with Trachycephalus (Faivovich, et al., 2005).
Sergio Potsch de Carvalho-e-Silva, Paulo Garcia 2004. Trachycephalus mesophaeus. The IUCN Red List of Threatened Species 2004: e.T55822A11372732. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T55822A11372732.en .Downloaded on 23 January 2019