Barsine nigrovena (Fang, 2000), comb. nov.

(Figs 23, 24, 43, 54)

Miltochrista nigrovena Fang, 2000: 88 (original description in Chinese), 537 (original description in English), text fig. 55 (male genitalia), pl. II, fig. 4 (adult). Type locality: [China, Hubei], “Hubai, Xingshan, 1260 m.

Type material examined. HOLOTYPE (Fig. 23): ♂, “ Hubei, Xingshan, Longmenhe / 1260m / Chinese Academy of Sciences [in Chinese]” (printed) // ” 1993.VI.16 / leg. Jian Yao (by light trap) [in Chinese]” (printed) // “L0068” (handwritten) // “ HOLOTYPE ” (printed) // “ Miltochrista / nigrovena / Fang” (handwritten) // “♂” (printed) // “IOZ(E) 208773” (printed) (IZCAS). The genitalia slide of the holotype is lost.

PARATYPE: ♀, “ Hubei, Xingshan, Longmenhe / 1380m / Chinese Academy of Sciences [in Chinese]” (printed) // “ 1993.VII.18, leg. Shi-mei Song [in Chinese]” (printed) // “ ALLOTYPE ” (printed) // “IOZ(E) 208774” (printed) (IZCAS) .

Other material examined. 3 ♂♂, altitude 785 m, 3.vi.2019, 31°22′45.99″N, 110°29′18.62″E, Chaoshuihe Village, Xingshan County, Yichang City, Hubei Province, PR China, preparations in glycerol by Huang (SCAU); 1 ♀, China, 1000–1300 m, Shaanxi, Quinling Mts, Xunyangba (6 km E), 23.v.–13.vi.1998, I.H. Marshal leg. (CKC); 1 ♀, China, Sichuan, Quingchenghoushan Mts., 70 km NW Chengdu, 1400m, 1–7.vi.2005, leg. S., V. & M. Murzin, slide MWM 35662 Volynkin (MWM / ZSM); 1 ♀, Frontière orientale du Thibet, Chasseurs indigènes du P. Déjean 1906 [eastern border of Tibet, Native collectors of P. P. Déjean] // Ex Oberthür coll. Brit. Mus. 1927–3., NHMUK010604588, slide NHMUK010313508 Volynkin (NHMUK).

Diagnosis. Forewing length 16.5–19.0 mm in males and 17.0–21.0 mm in females. Male of B. nigrovena (Fig. 23) can be easily distinguished from other congeners by the presence of broad blackish shades in postmedial and submarginal areas of both wings. Female of B. nigrovena (Fig. 24) is similar to that of the striped form of B. yuennanensis (Fig. 22), but differs clearly in its broader forewing, bright yellow forewing ground colour (pale yellow in B. yuennanensis) with broader blackish suffusion along veins and blackish cilia of both wings. The male genitalia of B. nigrovena (Fig. 43) are similar to those of B. yuennanensis (Fig. 42), but differ in distally narrower uncus, shorter and basally broader juxta, larger vinculum being more or less V-like (smaller and U-like in B. yuennanensis), broader medial costal process directed ventrally (in B. yuennanensis it is narrower and directed ventrally-distally), slightly larger distal costal process, slightly shorter 2 nd medial diverticulum bearing smaller cornuti, narrow and more prominent subdiverticulum of the 2 nd medial diverticulum, and slightly narrower tip of the 3 rd medial diverticulum. The male genitalia of B. nigrovena are also similar to those of B. eurydice (Fig. 44), but can be distinguished by their weaker uncus, shorter and slightly broader juxta, basally narrower valva, slightly larger distal costal process, slightly narrower distal membranous lobe of valva, slightly longer distal lobe of the distal saccular process, smaller basal diverticulum of vesica, slightly shorter 2 nd medial diverticulum with slightly larger subdiverticulum, and the tip of the 3 rd medial diverticulum bearing small cornuti (it is granulated in B. eurydice). In the female genitalia, B. nigrovena (Fig. 54) differs from B. yuennanensis (Fig. 53) in ductus bursae being less broadened anteriorly, and larger and more heavily sclerotized signum. Compared to those of B. eurydice (Fig. 55), the female genitalia of B. nigrovena have narrower sclerotized posterior area of corpus bursae and more heavily sclerotized signum.

Distribution. Central and South West China: Hubei (FANG 2000), Shaanxi and Sichuan Provinces (new records).

Remark. The holotype genitalia slide is lost.