This species is known from Rio de Janeiro and São Paulo States, in Brazil. It only occurs up to about 400m asl.
Habitat and Ecology
This species occurs among the forest leaf-litter in primary and secondary forest and forest edge. It presumably breeds by direct development like other species in the genus. It has not been recorded outside forest.
It is a locally common species.
Habitat loss due to deforestation, infrastructure development for human settlement, and fires are major threats to the species.
The range of the species includes a few protected areas. More research into the species' Extent of Occurrence and ecological requirements is needed.
Red List Status
Least Concern (LC)
Listed as Least Concern since, although its Extent of Occurrence is probably less than 20,000km2, it occurs within a few protected areas, it is common with a presumed large population, and it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
The validity of this species needs to be assessed.
Carlos Alberto Gonçalves da Cruz, Dante Pavan 2004. Ischnocnema bolbodactyla. The IUCN Red List of Threatened Species 2004: e.T56470A11482188. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T56470A11482188.en .Downloaded on 23 January 2019