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Range DescriptionMost of the range of this species is in Asia. It occurs from northern European and Siberian Russia to Sakhalin, extreme eastern Kazakhstan to northern Mongolia, northwest and central China extending to northeast China (Smith and Xie, in press), Korea, and in Japan from Hokkaido, Iturup, Kunashir, Rishiri, Rebun, Teuri, and Yagishiri (Abe, et al., 2005). In Japan the species has been introduced on Honshu at one confirmed locality, Karuizawa. It is also introduced in Belgium, Germany, the Netherlands, Switzerland, and Italy (Amori 1999). In Mongolia it is known from forested areas of northern Mongolia, including Hangai, Hövsgöl, Hentii and Mongol Altai mountain ranges (Mallon, 1985).