This species is known from Serra da Mantiqueira and Serra do Mar, in Rio de Janeiro, Minas Gerais and São Paulo States, in Brazil. It occurs from 800-2,200m asl.
Habitat and Ecology
The species occurs on low vegetation near waterbodies in primary and secondary forest. It has not been recorded outside forest. It breeds in permanent streams.
It is a very common species.
Habitat loss due to deforestation, infrastructure development and agricultural encroachment is a threat to this species.
The range of the species includes several protected areas. More research into its Extent of Occurrence is desirable. Further research is required to resolve taxonomic confusion within the genus Scinax.
Carlos Alberto Gonçalves da Cruz, Ana Maria Telles 2004. Scinax obtriangulatus. In: IUCN 2014