This species is found in Indonesia (Barisan Mountains of west-central Sumatra), Malaysia (mountains of the Malay Peninsula south of the Perak River), and a small area of southern peninsular Thailand (Chivers 1974; Khan, 1970; O?Brien et al. 2003; Treesucon and Tantithadapitak 1997). It may have formerly occurred on the island of Bangka (Indonesia) as well. Reports of this species from Myanmar are almost certainly erroneous.
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