Blastobasis parki Sinev, 1986

(Figs. 5, 15)

Blastobasis parki, Sinev, 1986: 57 . Type locality: Russia. Type deposited: ZIRAS.

Material examined. CHINA: Hebei Province: 9♂, Shanzhuang, Mt. Bulaoqing, Xingtai County, 952 m, 10‒ 11.VII.2016, coll. Sihan Lu and Hua Rong ; 1♂, Zhongguyuan, Mt. Wuling, Xinglong County, 900 m, 31.VII.2000, coll. Yanli Du and Zhendong Li ; 17♂, Suanzaoping, Neiqiu County, 670 m, 28‒29.VII.2000, coll. Haili Yu et al.; 1♂, Mt. Xiantai, Jingxing County, 1200 m, 23.VII.2000, coll. Haili Yu et al. Shanxi Province: 11♂, Dahe Forest Farm, Yicheng County, Linfen City, 1202 m, 24‒26.VII.2013, coll. Shulian Hao and Mingjing Li ; 1♂, Dahe For- est Farm, 1340 m, 13.VII.2012, coll. Qiang Gao and Na Chen. Liaoning Province: 1♂, Jiancezhan, Mt. Bailang, Jianchang County, 477 m, 8.VIII.2016, coll. Mujie Qi, Juan Li and Yanyan Jia.

Diagnosis. Adult (Fig. 5) forewing length 5.0–6.0 mm. Blastobasis parki is similar to B. drymosa Adamski & Li, 2010 and B. sprotundalis Park, 1984 in structures of the genital. Its male genitalia can be separated from those of B. drymosa by the presence of long setae along the ventral margin of the proximal flange, and the membrane above the proximal flange with a row of elongate spine-like setae (Fig. 15). Its female genitalia are distinguished by the intersegmental membrane posterior to the seventh segment with an oval area of dense microtrichiae flanking the ostium, and the seventh sternum almost straight on the posterior margin (Sinev 1986: Fig. 8). In B. drymosa, the proximal flange lacks long setae along ventral margin but bears a cluster of elongate spine-like setae in the membrane above the proximal flange in the male genitalia. And the densely microtrichiate area flanking ostium on the intersegmental membrane posterior to the seventh segment is subquadrate, and the seventh sternum is deeply concave in broad V-shape on the posterior margin in the female genitalia. The differences between B. parki and B. sprotundalis are given in the diagnosis of B. sprotundalis .

Distribution. China (Hebei, Liaoning, Shanxi), Korea, Russia (Primorsky Krai).

Note. This species is recorded for the first time in China.