This species is known only from the type locality in the Corbett's Gap region in the southern Knuckles Range of central Sri Lanka at 1,245m asl (Meegaskumbura and Manamendra-Arachchi 2005). There is also a recent record from the nearby Bambarella Peak (M. Meegaskumbura pers. comm.).
Habitat and Ecology
It inhabits the understorey of closed-canopy montane forests and cardamom plantations within the forest. Males are usually seen calling from leaves 2-3m above the ground. Breeding presumably takes place by direct development, as with other species of the genus.
It occurs in low abundance.
The major threat is forest clearance due to smallholder farming activities and logging; drought, and the use of agrochemicals in cardamom cultivation, are additional threats.
Bambarella Peak is part of the Knuckles Forest Reserve, but there is an urgent need for the protection of forest habitat in the Corbett's Gap region. Monitoring of the species' population is recommended.
Red List Status
Listed as Endangered because its Extent of Occurrence is less than 100km2, its Area of Occupancy is less than 500km2, it is known from only two locations, and there is continuing decline in the extent and quality of its forest habitat.
Madhava Meegaskumbura, Kelum Manamendra-Arachchi 2006. Pseudophilautus stuarti. The IUCN Red List of Threatened Species 2006: e.T61889A12562383. http://dx.doi.org/10.2305/IUCN.UK.2006.RLTS.T61889A12562383.en .Downloaded on 18 January 2019