Dryodurgades lamellaris Vilbaste

(Figs 2, 5, 8, 15–20)

Dryodurgades lamellaris Vilbaste 1968: 58 –60, Figs 45; Cai & Shen, 1998: 246.

Material examined: China: 3 3, 6 Ƥ, Shaanxi Prov., Fuping, 2010-08-04, Zhang Pei; 2 3, 2 Ƥ, Shaanxi Prov., Zhouzhi, 2010-08-09, Zheng Yanlin; 2 3, Sichuan Prov., Yaan, Kongpingxiang, 2010-07-15, Zheng Yanlin; 4 3, 6 Ƥ, Sichuan Prov., Mianyang, Chaping, 2010-07-19, Zheng Yanli; 2 3, 3 Ƥ, Sichuan Prov., Tianquan, 2005-08-05, Yang Zaihua; 10 3, 13 Ƥ, Guizhou Prov., Kuankuoshui, 2010-06-02, Zhang Bin.

Distribution. China: Guizhou, Henan, Shaanxi, Sichuan. Korea; Russia.

Remarks. D. lamellaris is widely distributed in both the Palaearctic and Oriental regions. It is a common species in mainland China. This species differs from the others in the genus by the following characters: apical portion of aedeagal shaft with two pairs of bifurcate processes, in lateral view shaft very broad medially.