This species is known only from the Serra do Mar and Ilha Grande, in the State Rio de Janeiro, southeastern Brazil. It occurs up to 1,100m asl.
Habitat and Ecology
This species lives in the leaf-litter on the floor of primary and secondary forest. The egg clutch is deposited on the ground under leaves, and the terrestrial larva lives and develops in a hole under the leaf-litter.
It is a very common species.
The major threats are probably related to habitat loss due to logging, human settlement, tourism and fire. However, its habitat is reasonably well protected.
It occurs in the Parque Nacional da Serra des Orgaos and other protected areas.
Red List Status
Least Concern (LC)
Listed as Least Concern since, although its Extent of Occurrence is probably not much greater than 20,000 km2, its habitat is reasonably well protected, it has a presumed large population, and it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
Sergio Potsch de Carvalho-e-Silva, Ana Maria Telles 2004. Zachaenus parvulus. The IUCN Red List of Threatened Species 2004: e.T57375A11628899. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T57375A11628899.en .Downloaded on 18 January 2019