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Range DescriptionSympetrum eroticum has been recorded from China, Taiwan, Japan, Korea, and Russia.
The nominate subspecies (S. e. eroticum) is recorded from northeast China, Japan (including Hokkaido, Honshu, Kyushu, Shikoku and the Ryukyus (Sugimura et al. 2001), and Korea (Lee 2001). Needham (1930) described the synonym Sympetrum ignotum from 'Weisohn, Manchuria'. Hua (2000) records S. ignotum from Jiangxi, northeast China and Zhejiang, but the records from Jiangxi and Zheijiang probably refer to the subspecies Sympetrum eroticum ardens (McLachlan). Zhang and Zhang (12006) record S. eroticum (as S. ignotum) from Shaanxi. Kosterin and Malikova (2007) record S. e. eroticum from southern, far-eastern Russia.
The subspecies S. e. ardens is widespread in Tawian (Lieftinck et al. 1984) and is known from southern China, including Fujian, Jiangsu, and Sichuan. Wilson (1999) recorded S. e. ardens from Guangdong. Hua's (2000) records of S. e. eroticum from Fujian, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangxi, Sichuan and Yunnan relate to the subspecies S. e. ardens. The two subspecies are not clearly differentiated, apart from minor size differences although they overlap in distribution.