Tecmerium scythrella (Sinev, 1986) (Figs 2, 6, 10)

Holcoceroides scythrella Sinev, 1986: 66 . Type locality: Russia.

Sinevina scythrella (Sinev): Koçak & Kemal, 2007: 6.

Tecmerium scythrella (Sinev): Sinev, 2008: 83.

Diagnosis. Adult (Fig. 2) forewing length 4.5–6.5 mm (n = 11). Tecmerium scythrella is characterized by the eighth sternum with posterior half sclerotized (Fig. 10), the relatively broader proximal flange, and the two apical processes of the sclerite of the phallus equal in length (Fig. 6). It is similar to T. yunnanense sp. nov. in the male genitalia, and the differences see the diagnosis of T. yunnanense sp. nov.

Material examined. 1♂, Mt. Wuling (elev. 800 m), Hebei, China, 30 June 2012, coll. Houhun Li, Shuxia Wang et al.; 1♂, Shuangyuanfeng, Mt. Wuling, Xinglong County, Hebei, China, 15 July 2011, coll. Houhun Li and Yanpeng Cai; 2♂, Heishuihe (elev. 600 m), Mt. Baxian, Tianjin, China, 7 July 2010, coll. Yinghui Mou and Shurong Liu; 1♂, Jiufu Village (elev. 520 m), Mt. Longtang, Zhejiang, China, 28 August 2014, coll. Aihui Yin, Qingyun Wang and Suran Li; 1♂, Qingliangfeng Botanical Garden (elev. 900 m), Linan City, Zhejiang, China, 13 August 2007, coll. Qing Jin; 1♂, Mt. Longtang (elev. 390 m), Qingliangfeng, Zhejiang, China, 21 May 2012, coll. Linlin Yang and Zhenguo Zhang; 4♂, Mt. Mian (elev. 1370 m), Jiexiu City, Shanxi, China, 15‒18 July 2014, coll. Tengteng Liu, Meiqing Yang and Sihan Lu .

Distribution. China (Hebei, Shanxi, Tianjin, Zhejiang), Korea, Russia.