This species occurs in southern Brazil in the eastern portions of Paraná, Santa Catarina, and Rio Grande de Sul states, 0-1,200m asl.
Habitat and Ecology
Occurs in secondary and old growth forest habitats at slowly flowing streams or ponds with clear water. The males call at night on low vegetation next to water. The egg clutch is stuck to aquatic vegetation.
It is common and stable where suitable habitats survive.
Habitat loss due to deforestation and water pollution is a major threat.
It occurs in several protected areas.
Many of the subspecies cited by B. Lutz (1973) and by Duellman (1976) are recognizable as distinct species.
Débora Silvano, Paulo Garcia, Magno Vicente Segalla 2004. Scinax catharinae. In: IUCN 2014