This species is known from the southern Annamite Mountains of Viet Nam and Lao People's Democratic Republic (Inger, Orlov and Darevsky 1999; Stuart 1999). It has been recorded between 700 and 1,200m asl, and is so far known from only four localities.
Habitat and Ecology
All records of this species are from streams in wet evergreen forest. It is a stream-breeding amphibian.
The species can be locally common, a series of 33 and 17 specimens were collected in a single night each (Inger, Orlov and Darevsky 1999). It was regularly encountered when collected in Lao People's Democratic Republic (B. Stuart pers. comm.), but was considered not to be common when collected in some areas of Viet Nam (Nguyen pers. comm.).
The species' habitat is under threat from forest degradation due to clearance for agriculture and logging (Inger, Orlov and Darevsky 1999, BirdLife International 2001). Long-term changes to hydrology might also be a threat.
One location in Viet Nam is within Kon Chan Ran Nature Reserve and the whole population in Lao People's Democratic Republic is within the Xe Sap National Biodiversity Conservation Area. Establishing a secure protected area on the Tay Nguyen Plateau is a high conservation priority (Kon Cha Ran is decreed as a Nature Reserve, but no conservation action has been implemented; BirdLife International 2001).
Red List Status
Peter Paul van Dijk, Bryan Stuart 2004. Hylarana attigua. In: IUCN 2014