Dineutus orientalis (Modeer, 1776)

Gyrinus orientalis Modeer, 1776: 160 .

Dineutes marginatus Sharp, 1873: 56 .

Dineutes quadrispina Fairmaire, 1878: 88 .

Material examined

CHINA – Beijing • 1 ex.; 北京白石桥 [Beijing, Baishiqiao]; 5 Apr. 1955; 张毅然采 [Zhang Yiran leg.]; IZCAS . – Hainan • 11 ex.; Hainan Is. S China, Ka-chek, K’ieng-tong District; 4 May 1932; F.K. To leg.; SYSU • 1 ♂; 海南 [ Hainan]; 16 Jul. 1957; 利翠英采 [Li Cuiying leg.]; SYSU • 1 ex.; Hainan, Fanyang; 15 Apr. 1936; G. Ros leg.; IZCAS . – Shaanxi • 4 ex.; 陕西西安浐灞 [Shaanxi, Xi’an, Chanba]; 21 May 2010; 许升金采 [Xu Shengjin leg.]; SYSU . – Tianjin • 2 ex.; 天津八里台 [Tianjin, Balitai]; 1 May 1955; 刘英采 [Liu Ying leg.]; SYSU .

Distribution

Distributed in China (Fujian, Guangdong, Guangxi, Guizhou, Hebei, Hong Kong, Hubei, Jiangsu, Liaoning, Shandong, Shanghai, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang), Japan, Korea, Vietnam and Laos. New for Beijing, Hainan, Shaanxi and Tianjin.