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Range DescriptionThis is a widespread species known from China, Japan and the Korean Peninsula. In China, it is known from the provinces of Sichuan, Fujian, Anhui, Guangxi, Guizhou, Taiwan, Province of China (Smith and Xie 2008), and Guangdong. In Japan, all records until recently have been of vagrants (prefectures of Hokkaido (Yagishiri Island), Saitama, Kanagawa, Mie, Hyogo, Hiroshima, Ehime, Kumamoto, and Fukuoka); however, recently there have been breeding colonies from the outlying prefectures of Kochi, Miyazaki, and Kyoto Prefectures (Abe et al. 2005).