Ypsolopha helva Sohn et Wu, 2010

Jin, Qing, Wang, Shuxia & Li, Houhun, 2013, Review of the genus Ypsolopha Latreille, 1796 from China (Lepidoptera: Ypsolophidae), Zootaxa 3705 (1), pp. 1-91 : 35

Ypsolopha helva Sohn et Wu, 2010

( Figs 29 , 79 , 129 , 175 )

Ypsolopha helva Sohn et Wu, 2010: 25 . Type locality: China (Xinjiang).

Description. Adult ( Fig. 29 ): Wing expanse 13.5−14.0 mm. Vertex white mixed with pale brown; face white. Antenna with scape grayish on dorsal surface, pale yellowish brown on ventral surface; grayish white ringed with dark brown on each flagellomere. Labial palpus white, mottled brown, grayish white on dorsal side of second and third segments; tuft of second segment triangular, slightly shorter than labial palpus; third segment a little shorter than second. Thorax white scattered with grayish black scales. Tegula brown mixed with gray. Forewing with M3 and CuA1 connate ( Fig. 79 ); yellowish white, scattered with pale yellowish brown scales; costa with about 11 dots or strigulae; cell with irregular dark brown patch at 1/3, 2/3 and end respectively, extending cross fold; narrow dark brown fascia extending obliquely from apex to tornus; brown spot above tornus; cilia white mixed with dark brown. Hindwing and cilia pale grayish brown. Fore- and midlegs dark brown mixed with grayish white except tarsi grayish white mixed with brown on ventral side; hindleg white, mixed with pale gray on outer surface. Abdomen grayish brown on dorsal surface, grayish white on ventral surface.

Male genitalia ( Fig. 129 ): Uncus degenerate. Socius slender, ending in point. Ventral plate of gnathos long ovate. Valva ovate, protruded at 2/3 on dorsal margin, ventral margin with a row of fine spines extending from near base to distal 1/4. Saccus about 2/3 length of socius, slightly pointed at apex. Anellus about 1/5 length of phallus, densely spinous in distal half. Phallus extremely slender, about 1.5 times length of valva; coecum about 1/7 length of phallus; cornuti composed of two slender spines, about 3/5 length of phallus.

Female genitalia ( Fig. 175 ): Intersegmental membrane between papilla analis and 8th abdominal segment 3/5 length of abdomen. Apophyses posteriores about 2.5 times length of apophyses anteriores. Lamella postvaginalis Y-shaped. Antrum somewhat cup-shaped. Ductus bursae extremely slender, longer than corpus bursae. Corpus bursae ovate; signum about 3/10 length of corpus bursae, ridged at anterior 1/3 and near posterior end respectively.

Material examined: Holotype ♂, Tuomurji, Xinjiang Uygur Autonomous Region, 4.vii.1977, coll. CJ Li ( IZCAS) (examined).

Additional material. 3 ♂♂, 1 ♀, Xunhua County (30°50′ N, 102°28′ E), Qinghai Province, 2240 m, 15.vii.1995, coll. Houhun Li & Shuxia Wang, genitalia slide No. JQ07278 ♂.

Diagnosis. This species is similar to Y. curatorella Baraniak, 2005 externally, but can be distinguished by the longer phallus that is 1.5 times length of the valva in the male genitalia ( Fig. 129 ), and the Y-shaped lamella postvaginalis in the female genitalia ( Fig. 175 ). In Y. curatorella Baraniak , the phallus is slightly shorter than the valva and the lamella postvaginalis comprizes a pair of sclerotized longitudinal bands (Baraniak 2005: Figs 7, 9 ).

Distribution. China (Qinghai, Xinjiang).

Remarks. The female of this species is described for the first time.

Figures

FIGURES 26 – 32. Adults of Ypsolopha spp. 26. Y. minuta sp. nov., paratype, ♀; 27. Y. allochroa sp. nov., holotype, ♂; 28. Y. albiramella (Mann), ♂; 29. Y. helva Sohn et Wu, ♂; 30. Y. brevivalva sp. nov., holotype, ♂; 31. Y. longifloccosa sp. nov.: a. holotype, ♂, b. paratype, ♂; 32. Y. altissimella (Chrétien), ♂.

FIGURES 75 – 79. Wing venation of Ypsolopha spp. 75. Y. latiuscula sp. nov., paratype, slide no. JQ 07297 ♀ W; 76. Y. minuta sp. nov., a. paratype, slide no. XYL 03273 ♂ W, b. paratype, JQ 07283 ♀ W; 77. Y. allochroa sp. nov., paratype, slide no. JQ 07125 ♂ W; 78. Y. albiramella (Mann), slide no. L 93029 ♂ W; 79. Y. helva Sohn et Wu, slide no. JQ 07278 ♂ W.

FIGURES 129 – 134. Male genitalia of Ypsolopha spp. 129. Y. helva Sohn et Wu, slide no. JQ 07278; 130. Y. brevivalva sp. nov., paratype, slide no. L 94313; 131. Y. longifloccosa sp. nov., holotype, slide no. JQ 07246; 132. Y. altissimella (Chrétien), slide no. JQ 07035; 133. Y. contractella (Caradja), slide no. JQ 07253; 134. Y. albistriata (Issiki), slide no. JQ 07060.

FIGURES 170 – 175. Female genitalia of Ypsolopha spp. 170. Y. bicostata sp. nov., paratype, slide no. JQ 07233; 171. Y. latiuscula sp. nov., paratype, slide no. JQ 07275; 172. Y. purpurata sp. nov., paratype, slide no. JQ 08020; 173. Y. minuta sp. nov., paratype, slide no. JQ 07228; 174. Y. allochroa sp. nov., paratype, slide no. JQ 07163; 175. Y. helva Sohn et Wu, slide no. JQ 07172.

FIGURES 4 – 11. Adults of Ypsolopha spp. 4. Y. vittella (Linnaeus), ♂; 5. Y. japonica Moriuti, ♂; 6. Y. amoenella (Christoph), ♂; 7. Y. hebeiensis Yang, ♀; 8. Y. leuconotella (Snellen), ♀; 9. Y. flaviterminata sp. nov., holotype, ♂; 10. Y. flavida sp. nov., holotype, ♂; 11. Y. asperella (Linnaeus), ♂.