This species is restricted to Chikmalagur (where it is known from three localities), in Karnataka State, in the southern Western Ghats of India. The altitudinal range is between 800 and 1,200m asl.
Habitat and Ecology
It is arboreal, occurring in tropical moist evergreen forest, though it may also be found in secondary forest close to primary forest edge. It is believed to breed by direct development.
It is a rare species.
The major threat is habitat loss due to the conversion of native forest to intensively cultivated areas.
It is not known if the species occurs in any protected areas, though it may occur in Kudremukh National Park. It is part of ongoing regional field studies by S.D. Biju.
Red List Status
Listed as Endangered because its Area of Occupancy is less than 500km2, all individuals are in fewer than five locations, and there is continuing decline in the extent and quality of its habitat.
Specimens of Philautus charius recorded from Ponmudi Hills and surroundings and Wayanad are in the process of being published as the new species Philautus "Kalpatta" (S.D. Biju pers. comm.).
S.D. Biju, Sushil Dutta, Karthikeyan Vasudevan, S.P. Vijayakumar, Chelmala Srinivasulu 2004. Raorchestes charius. The IUCN Red List of Threatened Species 2004: e.T58830A11847382. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T58830A11847382.en .Downloaded on 18 January 2019