Arunachal Pradesh state: West Kameng district, Nafra and Singchung sub-districts, Bichom, Diching, Dikiang, Lichini, Mangopom, Namphri, New Kaspi, Ramu, Sachita, Singchung, Situ, and Wangho villages; in mountains on both sides of Rupa river, interspersed among the Aka.
