Decma (Decma) tristis Gorochov & Kang, 2005

Specimens examined. 3♂ 5♀, Diaoluoshan, Lingshui, Hainan, 5–11 May 2014, collected by Jiao Jiao; 14♂ 21♀, Wuzhishan (Shuiman), Hainan, 12–17 May 2014, collected by Jiao Jiao; 2♂ 2♀, Wuzhishan (Shuiman), Hainan, 12–17 May 2014, collected by Guang-Lin Xie; 2♂ 6♀, Yashicun, Baisha, Hainan, 19–21 May 2014, collected by Jiao Jiao; 3♂ 1♀, Yinggezui, Baisha, Hainan, 22–24 May 2014, collected by Jiao Jiao; 1♀, Jianfengling, Ledong, Hainan, 5 June 2014, collected by Jiao Jiao.

Distribution. Hainan (Bawangling, Diaoluoshan, Jianfengling, Limushan, Wuzhishan).