The species ranges widely in southeast Asia. It ranges from southern Yunnan (Smith et al. 2008), through eastern and southern Myanmar, most of Lao PDR and Viet Nam, northern Cambodia and most of Thailand, south to Penininsular Malaysia, Tioman (Malaysia), Sumatra (mainly in the mountain chain), Java, and Borneo (Brunei, northern Kalimantan, Sabah and northern Sarawak) (Ruedi et al. 1994; Ruedi and Fumagalli 1996). It is generally, though not always, found in hilly areas. A survey conducted by Nor (2001) on Mount Kinabalu, Malaysia, found individuals of this species at 1,700 m asl and higher. In other areas, such as in Sumatra, the species can be found as high as 3,000 m asl, while on the Asian mainland it has been found as low as 90 m asl.