Found in South-east Asia, north of the isthmus of Kra, including: Thailand, Bangladesh, Burma, far north-eastern India and Nepal, southern China, Cambodia, Lao PDR, Viet Nam, and associated coastal islands, including Hainan. It probably also occurs on Preparis Island north of the Andaman Islands (Helgen 2005). Listed as present in Bhutan by Molur et al. (2005). Recorded to 3,000 m in China (E. Smith pers. comm).