This species is known from eastern Myanmar, most of Thailand (Taylor, 1962; Chan-ard et al., 1999), several localities from Lao People's Democratic Republic (Stuart, 1999), northern and central Viet Nam (Inger et al., 1999; Lathrop et al, 1999b; Orlov et al., 2000), Mengyang in Jinghong County in southern Yunnan, China, and is localized in Peninsular Malaysia (Berry, 1975). It is known from 200-1,900m asl.