 In China, the species is known to inhabit from south of the Yarlung Tsangpo River on the southern-facing side of the eastern Himalayas, to the westerly bend of the river.In India it occurs in Arunachal Pradesh and Sikkim.Geoffrey Ambler

Air Vice Marshal Geoffrey Hill Ambler, (23 June 1904 – 26 August 1978) was a senior officer in the Royal Air Force (RAF) during the Second World War.