This species is known only from Pa Lao U, in Prachuap Khiri Khan Province, in southwestern Thailand (Matsui, 2006). The elevation of this locality is not given. It can be expected to occur more widely, perhaps including in neighbouring Myanmar.
Habitat and Ecology
Males have been found calling at night among stones and litter on the forest floor along a stream (Matsui, 2006). It presumably breeds in streams by larval devleopment. It is not known whether or not it can tolerate anthropogenic disturbance of its habitat.
There is no information on its abundance. It is known from only four specimens (Matsui, 2006).
No information is available on threats to this species.
It is not known from any protected areas. Surveys are needed to determine its geographic distribution, abundance, ecological requirements, threats and conservation needs.
Simon Stuart 2008. Leptolalax fuliginosus. In: IUCN 2014