Ypsolopha flaviterminata, 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: 17-18

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Ypsolopha flaviterminata

sp. nov.

Ypsolopha flaviterminata   sp. nov.

( Figs 9 View FIGURES 4 – 11 , 60 View FIGURES 55 – 60 , 109 View FIGURES 105 – 110 , 160 View FIGURES 158 – 163 )

Type material. Holotype: ♂, China, Mt. Xinglong, Yuzhong County (35 ° 53 ′ N, 104 °06′ E), Gansu Province, 2130 m, 2.viii. 1993, coll. Houhun Li et al., genitalia slide No. JQ07041. Paratypes: 1 ♂, 1 ♀, 2178 m, 20.viii. 2007, coll. Feng Yang & Hanguang Gao, same locality as for holotype.

Diagnosis. This new species is similar to Y. leuconotella (Snellen)   in appearance, but can be distinguished by the pale yellow thorax and the the pale yellow dorsal band of the forewing, which are grayish white in the latter species. Ypsolopha flaviterminata   sp. nov. is similar to Y. flavida   sp. nov. in genitalia, but can be separated by the phallus curved at middle and the long coecum about 1 / 5 length of the phallus in the male genitalia ( Fig. 109 View FIGURES 105 – 110 ), and the V-shaped lamella postvaginalis in the female genitalia ( Fig. 160 View FIGURES 158 – 163 ). In Y. flavida   sp. nov., the phallus is straight and the male coecum is about 1 / 7 length of the phallus ( Fig. 110 View FIGURES 105 – 110 ), and the female lamella postvaginalis is Y-shaped ( Fig. 161 View FIGURES 158 – 163 ).

Description. Adult ( Fig. 9 View FIGURES 4 – 11 ): Wing expanse 21.0 mm. Vertex yellowish brown, mixed with white scales near base of antenna; face dark gray, mixed with dark brown around eyes. Antenna pale brown, ringed with white on each flagellomere. Labial palpus grayish brown, white on ventral surface of basal segment; tuft of second segment extremely small; third segment longer than second. Thorax pale yellow. Tegula pale yellowish brown. Forewing with R 4 and R 5 separated ( Fig. 60 View FIGURES 55 – 60 ); basal 2 / 3 dark brown with grayish brown scales between costa and fold, ocherous yellow between fold and dorsum, formal a broad dorsal band, distal 1 / 3 yellowish brown tinged with dark brown; subsemicircular ocherous yellow patch at end of cell; yellowish brown spot near base of dorsum; cilia grayish brown. Hindwing pale gray, darkened to apex; cilia pale yellowish brown, with yellowish white basal line.

Fore- and midlegs grayish brown, grayish white mixed with brown on ventral side of femora and midleg; hindleg yellowish white, white on inner side, pale gray on ventral side of tarsus; ringed with white on end of each tarsomere.

Male genitalia ( Fig. 109 View FIGURES 105 – 110 ): Uncus small, subulate. Socius slender, ending in point. Ventral plate of gnathos tongue-shaped. Valva broad ovate, concave near base on ventral margin, rounded apically. Saccus about 2 / 3 length of socius, narrowed at base, broadened slightly to subapex. Phallus about 1.4 times length of valva, curved medially; coecum about 1 / 5 length of phallus; cornuti composed of two large thorns, about 3 / 5 length of phallus.

Female genitalia ( Fig. 160 View FIGURES 158 – 163 ): Intersegmental membrane between papilla analis and 8 th abdominal segment 1 / 2 length of abdomen. Apophyses posteriores about twice length of apophyses anteriores. Lamella postvaginalis Vshaped. Antrum short, cup-shaped. Ductus bursae more than twice length of corpus bursae. Corpus bursae rounded, granulous around signum; signum a small sclerotized ovate plate, ridged at middle.

Distribution. China (Gansu).

Etymology. The specific epithet is derived from the Latin prefix flav -, meaning yellow, and the Latin terminatus, meaning terminal, referring to the forewing yellowish brown on distal 1 / 3.