Ypsolopha mucronulata, Jin, Qing, Wang, Shuxia & Li, Houhun, 2013

Jin, Qing, Wang, Shuxia & Li, Houhun, 2013, Review of the genus Ypsolopha Latreille, 1796 from China (Lepidoptera: Ypsolophidae), Zootaxa 3705 (1), pp. 1-91 : 28

Ypsolopha mucronulata sp. nov.

( Figs 22 , 73 , 122 , 169 )

Type material. Holotype: ♂, China, Yebadan, Tacheng (46°46′ N, 82°59′ E), Xinjiang Uygur Autonomous Region, 17.vii.1997, genitalia slide No. FXM07023. Paratypes: 1 ♂, same data as for holotype (abdomen missing); 1 ♀, Tacheng (46°46′ N, 82°59′ E), Xinjiang Uygur Autonomous Region, 5.vii.1990, coll. Jinfu Li.

Diagnosis. This species is characterized by the socius with distal 1/6 narrowed sharply to a thorn in the male genitalia ( Fig. 122 ). It is similar to Y. bicostata sp. nov. both externally and internally, but can be distinguished by the forewing having several rows of dark brown scales ( Fig. 22 ), the male saccus slightly shorter than the socius ( Fig. 122 ), and the female signum 3/5 length of the corpus bursae ( Fig. 157 ). In Y. bicostata sp. nov., the forewing lacks rowed dark brown scales ( Fig. 23 ), the male saccus is just 3/5 length of the socius ( Fig. 123 ), and the female signum is 1/2 length of the corpus bursae ( Fig. 166 ).

Description. Adult ( Fig. 22 ): Wing expanse 18.0−20.0 mm. Head white, dark brown around eyes. Antenna grayish brown, ringed with white on each flagellomere. Labial palpus grayish brown except basal segment white; third segment longer than second. Thorax white. Tegula dark brown. Forewing with R4 and R5 almost connate ( Fig. 73 ); grayish brown, tinged with grayish white on distal 1/3, with several longitudinal rows of dark brown scales; costa dark brown on basal 3/4; cell with curved black strip on distal half, with a small black dot at lower angle; yellowish white line extending from end of cell to apex; dorsal band dark brown, with curved yellowish white line along its upper edge, with discontinuous dark brown line above yellowish white line extending to end of fold; apex with a small dark brown speckle; termen dark brown; cilia concolorous with wing except grayish white at apex. Hindwing and cilia grayish brown. Fore- and midlegs grayish brown; hindleg silvery gray.

Male genitalia ( Fig. 122 ): Uncus degenerate. Socius broadened and incurved from base to 5/6, distal 1/6 narrowed sharply to a thorn. Ventral plate of gnathos almost rounded. Valva nearly semicircular. Saccus shorter than socius, parallel-sided to rounded apex. Anellus a quarter length of phallus, densely spinous on distal half. Phallus stout, curved slightly at middle, about 1.5 times length of valva; coecum 1/5 length of phallus; cornuti about 1/2 length of phallus, composed of two broad rows of microspines, each row with several large spines at end.

Female genitalia ( Fig. 169 ): Intersegmental membrane between papilla analis and 8th abdominal segment 1/2 length of abdomen. Apophyses posteriores about 1.6 times length of apophyses anteriores. Lamella postvaginalis V-shaped. Antrum slender, cup-shaped. Ductus bursae longer than corpus bursae, broadened gradually from inception of ductus seminalis to corpus bursae. Corpus bursae sacklike; signum about 3/5 length of corpus bursae, ridged at anterior 1/4 and posterior 1/6 respectively.

Distribution. China (Xinjiang).

Etymology. The specific epithet is derived from the Latin mucronulatus, meaning with sharp end, referring to the male socius with distal 1/6 narrowed sharply to a thorn.

Figures

FIGURES 19 – 25. Adults of Ypsolopha spp. 19. Y. acerella Ponomarenko et al., ♀; 20. Y. yangi Ponomarenko et Sohn, ♀; 21. Y. horridella (Treitschke), ♂; 22. Y. mucronulata sp. nov., holotype, ♂; 23. Y. bicostata sp. nov.: a. holotype, ♂, b. paratype, ♂; 24. Y. latiuscula sp. nov., holotype, ♂; 25. Y. purpurata sp. nov., paratype, ♀.

FIGURES 69 – 74. Wing venation of Ypsolopha spp. 69. Y. scabrella (Linnaeus), slide no. JQ 08230 ♀ W; 70. Y. acerella Ponomarenko et al., slide no. JQ 08224 ♂ W; 71. Y. yangi Ponomarenko et Sohn, slide no. JQ 07279 ♂ W; 72. Y. horridella (Treitschke), slide no. JQ 08292 ♂ W; 73. Y. mucronulata sp. nov., paratype, slide no. L 94243 ♀ W; 74. Y. bicostata sp. nov., paratype, slide no. JQ 07233 ♀ W.

FIGURES 117 – 122. Male genitalia of Ypsolopha spp. 117. Y. fascimaculata sp. nov., paratype, slide no. JQ 07282; 118. Y. scabrella (Linnaeus), slide no. JQ 07229; 119. Y. acerella Ponomarenko et al., slide no. JQ 08224; 120. Y. yangi Ponomarenko et Sohn, slide no. JQ 07290; 121. Y. horridella (Treitschke), slide no. JQ 07292; 122. Y. mucronulata sp. nov., holotype, slide no. FXM 07023.

FIGURES 164 – 169. Female genitalia of Ypsolopha spp. 164. Y. parenthesella (Linnaeus), slide no. JQ 08228; 165. Y. fascimaculata sp. nov., paratype, slide no. JQ 07151; 166. Y. scabrella (Linnaeus), slide no. JQ 07270; 167. Y. acerella Ponomarenko et al., slide no. JQ 08022; 168. Y. yangi Ponomarenko et Sohn, slide no. JQ 07279; 169. Y. mucronulata sp. nov., paratype, slide no. L 94243.

FIGURES 153 – 157. Genitalia of Ypsolopha spp. 153 – 154. Male genitalia: 153. Y. diana (Caradja), slide no. JQ 07306; 154. Y. acuminata (Butler), slide no. JQ 08286. 155 – 157. Female genitalia: 155. Y. vittella (Linnaeus), slide no. JQ 07276; 156. Y. japonica Moriuti, slide no. JQ 07066; 157. Y. amoenella (Christoph), slide no. JQ 07098.

FIGURES 123 – 128. Male genitalia of Ypsolopha spp. 123. Y. bicostata sp. nov., holotype, slide no. JQ 07232; 124. Y. latiuscula sp. nov., holotype, slide no. L 95031; 125. Y. purpurata sp. nov., paratype, slide no. JQ 07157; 126. Y. minuta sp. nov., holotype, slide no. JQ 07284; 127. Y. allochroa sp. nov., holotype, slide no. JQ 07362; 128. Y. albiramella (Mann), slide no. JQ 07341.