This species is known only from the type locality in the Serra da Bocaina, São Paulo State, Brazil. The exact altitude of this locality is unknown, but it is probably at around 1,000m asl.
Habitat and Ecology
It is known from the leaf-litter of forests. The type locality has both secondary and primary forest, but it is not known in which area exactly this species was collected from. It presumably breeds by direct development, like other species in the genus.
This species is only known from a few specimens, and there is no recent information on its population status.
There are no known threats to its habitat at present.
Its range is within Parque Nacional da Serra da Bocaina.
Carlos Alberto Gonçalves da Cruz, Sergio Potsch de Carvalho-e-Silva 2004. Ischnocnema pusilla. In: IUCN 2014