This species is found in Thailand, peninsular Myanmar and Malaysia, and small adjacent islands including Langkawi in the west (Oshida et al. 2001). It is found west of the Mekong and east of the Salween (Moore and Tate 1965). It is likely to occur in the small parts of Lao PDR west of the Mekong but thes have not been surveyed adequately yet (Duckworth et al. 1999). It has also been recorded from Yunnan, China (Smith et al. 2008).