Ypsolopha nigrofasciata Yang, 1977

Jin, Qing, Wang, Shuxia & Li, Houhun, 2013, Review of the genus Ypsolopha Latreille, 1796 from China (Lepidoptera: Ypsolophidae), Zootaxa 3705 (1), pp. 1-91 : 43

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.

Figures

FIGURES 33 – 39. Adults of Ypsolopha spp. 33. Y. contractella (Caradja), ♀; 34. Y. albistriata (Issiki), ♂; 35. Y. strigosa (Butler, 1879), ♀; 36. Y. paristrigosa sp. nov., holotype, ♂; 37. Y. nigrofasciata Yang, ♂; 38. Y. longa Moriuti, ♀; 39. Y. saitoi Moriuti, ♀.

FIGURES 86 – 91. Wing venation of Ypsolopha spp. 86. Y. nigrofasciata Yang, slide no. JQ 08216 ♂ W; 87. Y. longa Moriuti, slide no. JQ 07274 ♂ W; 88. Y. saitoi Moriuti, slide no. JQ 07103 ♀ W; 89. Y. umbrina sp. nov., paratype, slide no. JQ 07050 ♀ W; 90. Y. dentella (Fabricius), JQ 08285 ♂ W; 91. Y. ulingensis Yang, slide no. JQ 07090 ♂ W.

FIGURES 135 – 140. Male genitalia of Ypsolopha spp. 135. Y. strigosa (Butler), slide no. JQ 07034; 136. Y. paristrigosa sp. nov., holotype, slide no. JQ 10008; 137. Y. nigrofasciata Yang, slide no. JQ 08216; 138. Y. longa Moriuti, slide no. JQ 07285; 139. Y. saitoi Moriuti, slide no. JQ 07301; 140. Y. umbrina sp. nov., holotype, slide no. JQ 07104.