Ypsolopha nigrofasciata Yang, 1977

(Figs 37, 86, 137)

Ypsolopha nigrofasciatus Yang, 1977: 105 .

Ypsolopha nigrofasciata Yang: Sohn et al., 2010: 24, 34; Ponomarenko & Zinchenko, 2013: 31. Type locality: China (Hebei).

Redescription. Adult (Fig. 37): Wing expanse 23.0 mm. Head white, brown around eyes. Antenna white, ringed with brown on each flagellomere. Labial palpus white except second segment yellowish brown on outer side; tuft of second segment rectangular, shorter than labial palpus; third segment much shorter than second, ascending. Thorax and tegula yellowish brown. Forewing with CuA1 and CuA2 connate (Fig. 86); anterior 1/3 white, with scattered yellowish brown scales on basal half, posterior 1/3 pale brown, mixed with yellowish brown except white at base of dorsum; median 1/3 dark brown, forming a broad band darkened from base to apex; cilia yellowish brown, dark brown below apex. Hindwing pale grayish brown, darkened to brown toward apex; cilia yellowish white except yellowish brown on distal half of costa. Fore- and midlegs grayish brown on dorsal side, white on ventral side; hindleg yellow on outer side, white on inner side and tibia.

Male genitalia (Fig. 137): Uncus triangular. Socius slender, narrowed to pointed apex. Ventral plate of gnathos broadly tongue-shaped. Valva ovate, protrudent before apex dorsally. Saccus about 2/3 length of socius, distal half broad, apex slightly pointed. Anellus less than 1/5 length of phallus, sparsely spinous on distal half. Phallus slightly longer than valva, curved at middle; coecum about 1/5 length of phallus; cornuti about 1/5 length of phallus, composed of two rows of microspines.

Type material. Holotype: ♂, China, Mt. Wuling (40°36′ N, 117°29′ E), Xinglong County, Hebei Province, 1700 m, 22.viii.1973, coll. Jikun Yang, genitalia slide No. JQ08216 (CAU) [examined].

Additional material. 3 ♂♂, Shuangyuanfeng, Mt. Wuling (40°36′ N, 117°29′ E), Xinglong County, Hebei Province, 800 m, 4.viii.2011, coll. Qiang Gao.

Distribution. China (Hebei), Russia (Far East).

Diagnosis. This species can be separated from its congeners by the forewing with median 1/3 dark brown, forming a broad band (Fig. 37). It is similar to Y. yasudai Moriuti in the male genitalia, but differs in having a triangular uncus, which is subulate in the latter species.