This species is currently known only from Mount Wilhelm in the central mountains of Papua New Guinea, but it might have a broader distribution at high altitudes in New Guinea. Another population might survive on Mount Giluwe and perhaps also on Mount Hagen. It has been recorded from above 3,000m asl, and so the amount of habitat available within its potential range is probably limited.
Habitat and Ecology
There are no specific data available, but it is probably found in montane rainforest. It presumably breeds in torrential high-altitude streams.
There is no recent information available on the population status of this species. There are specimens in a collection in Papua New Guinea from the 1970s and 1980s that might represent this species.
There is no information on threats to this species, but it is known from an area where there is very little human impact. A potential future threat is the spread of chytridiomycosis, which has been implicated in the declines of high-altitude, torrent-dwelling tree-frogs in Australia.
It is not known from any protected areas. There is a need for further survey work to better determine the distribution and population status of this species in the high mountains of central Papua New Guinea.
This species is part of a taxonomically poorly defined group of frogs (R. Zweifel pers. comm.).
Stephen Richards, Fred Parker 2004. Litoria becki. In: IUCN 2014