It is found in western China,[REF][REF] within the provinces of Gansu, Hubei (formerly known as Hupeh), Shaanxi (or Shan Si), Sichuan (formerly known as Szechuan) and Yunnan [REF].
Large colonies are found on the grasslands of Mount Hengduan in the 'Lamagetou Nature Reserve' in Sichuan [REF].