Ypsolopha albula, 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 : 23

Ypsolopha albula sp. nov.

( Figs 15 , 66, 115)

Type material. Holotype: ♂, China, Mt. Li, Jincheng (35°30′ N, 112°51′ E), Shanxi Province, 1520 m, 19.viii.2006, coll. Xu Zhang & Haiyan Bai, genitalia slide No. JQ07261. Paratype: 1 ♂, same data as for holotype; 8 ♂♂, Shuangyuanfeng, Mt. Xinglong (40°36′ N, 117°29′ E), Hebei Province, 800 m, 29.vii.2011, coll. Houhun Li & Yanpeng Cai.

Diagnosis. The new species is characterized by the forewing having an elongate rhombic white spot along the upper margin of the cell on basal 4/5 ( Fig. 15 ). Ypsolopha albula sp. nov. is similar to Y. parenthesella (Linnaeus) in appearance, but differs in the forewing having grayish brown or ocherous brown strips along the veins ( Fig. 15 ), which are absent in the latter species. Ypsolopha albula sp. nov. is also similar to Y. fascimaculata sp. nov. in the male genitalia, but can be distinguished by the phallus pointed at the apex, and the coecum 1/10 length of the phallus ( Fig. 115 ); in the latter species, the phallus is not pointed at the apex and the coecum is 1/5 length of the phallus ( Fig. 117 ).

Description. Adult ( Fig. 15 ): Wing expanse 18.0 mm. Vertex yellowish white; face white, pale yellowish brown to grayish brown around eyes. Antenna white, ringed with yellowish brown on each flagellomere. Labial palpus white, grayish yellow on dorsal side of basal segment and on outer side of second segment, grayish white on third segment; tuft of second segment triangular, only 1/3 length of labial palpus; third segment longer than second. Thorax white, with a median pale yellow streak. Tegula grayish yellow to brown. Forewing with R4 and R5 stalked (Fig. 66); pale yellow to grayish yellow; costa gray along basal 1/3; grayish brown or ocherous brown strips along lower margin of cell as well as along veins; a wide elongate white rhombic spot along upper margin of cell on basal 4/5, extending obliquely downward slightly; dark brown streak at basal 1/3 above dorsum; cilia gray. Hindwing brown; cilia brown, with a yellowish white basal line. Fore- and midlegs grayish brown on dorsal side, white on ventral side and femora; hindleg grayish white on outer side, white on inner side.

Male genitalia ( Fig. 115 ): Uncus a small semicircular protuberance. Socius slender, curved outward distally, tapering to a point. Ventral plate of gnathos long ovate. Valva elongate ovate, slightly arched dorsodistally, rounded at apex. Saccus 1/3 length of socius. Anellus about 1/3 length of phallus, densely covered with short hairs on distal 1/2. Phallus longer than valva, tapering to pointed apex, curved at middle; coecum 1/10 length of phallus, inception of ductus ejacuiatorius placed near base of phallus; cornuti about half length of phallus, composed of two rows of microspines.

Female: Unknown.

Distribution. China (Hebei, Shanxi).

Etymology. The specific epithet is derived from the Latin albulus, meaning white, referring to the elongate rhombic white spot on the forewing.

Figures

FIGURES 12 – 18. Adults of Ypsolopha spp. 12. Y. parallela (Caradja), ♀; 13. Y. sarmaticella (Rebel), ♀; 14. Y. parenthesella (Linnaeus), ♀; 15. Y. albula sp. nov., holotype, ♂; 16. Y. longisaccata sp. nov., holotype, ♂; 17. Y. fascimaculata sp. nov., paratype, ♀; 18. Y. scabrella (Linnaeus), ♀.

FIGURES 111 – 116. Male genitalia of Ypsolopha spp. 111. Y. asperella (Linnaeus), slide no. JQ 07052; 112. Y. parallela (Caradja), slide no. JQ 08230; 113. Y. sarmaticella (Rebel), slide no. JQ 07255; 114. Y. parenthesella (Linnaeus), slide no. JQ 08227; 115. Y. albula sp. nov., holotype, slide no. JQ 07261; 116. Y. longisaccata sp. nov., holotype, slide no. JQ 07056.

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.