Leucoma candida (Staudinger, 1892)

(Figs 5‒6, 20, 30)

Stilpnotia salicis var. candida Staudinger, 1892: 308; Bryk, 1934: 115.

Stilpnotia candida: Swinhoe, 1922: 462; Chao, 1978: 54.

Liparis salicis: Bremer, 1864: 41 .

Leucoma candida: Kozhanchikov, 1950: 345; Inoue, 1956: 156; Chao, 2003: 286; Wang et al., 2015: 583.

Diagnosis. The species is often confused with L. salicis due to the similarity of superficial characters, but can be easily separated from the latter by the following characters: main stem of antenna white, with a black-brown stripe; vesica of aedeagus with numerous minute denticles; female genitalia with a M-shaped signum within bursa.

Material examined. 1♂ 1♀, Tiantai Mountain National Forest Park, Feng County, Baoji City, Shaanxi, 6– 13.VIII.2018, leg M. Wang, Z.P. Miao . 2♂, Huameiguang, Liuba County, Hanzhong City, Shaanxi, 10-12.VIII.2018, leg M. Wang, Z.P. Miao . 1♂, Heping Village, Caoke Towns, Shimian County, Ya’an City, Sichuan, China, 26– 27.VII.2017, leg M. Wang, Z.P. Miao . 3♂ 2♀, Tacheng Town, Weixi County, Diqing Tibetan Autonomous Prefecture, Yunnan, 15-18.VII.2018, leg M. Wang, Z.P. Miao .

Distribution. China (Hebei, Shanxi, Liaoning, Jilin, Heilongjiang, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Sichuan, Yunnan, Shaanxi, Qinghai, Gansu), North Korea, Japan, Russia.