This species is only known from Haycock Hill (Hiniduma) Forest Reserve (06° 20'N; 80° 18'E) in south-western Sri Lanka, at 660m asl (Manamendra-Arachchi and Pethiyagoda 2005). It seems to be restricted to the type locality.
Habitat and Ecology
The type specimen was found in closed-canopy forest on a wet rock. It presumably breeds by direct development and is not dependent on water.
It is known only from the type specimen and is believed to be a very rare species.
The major threat to this species is habitat loss due to the encroachment of tea plantations. It is probably also affected by agro-chemicals.
It occurs in Haycock Hill-Hiniduma Forest Reserve; however, this reserve is in need of better management to ensure the persistence of this species.
Red List Status
Critically Endangered (CR)
Listed as Critically Endangered because its Extent of Occurrence is less than 100 km2 and its Area of Occupancy is less than 10 km2, all individuals are in a single location, and there is continuing decline in the extent and quality of its habitat in southwestern Sri Lanka.
Kelum Manamendra-Arachchi, Rohan Pethiyagoda 2004. Pseudophilautus nemus. The IUCN Red List of Threatened Species 2004: e.T58879A11842102. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T58879A11842102.en .Downloaded on 19 January 2019