Ypsolopha latiuscula, 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: 29-30

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Ypsolopha latiuscula

sp. nov.

Ypsolopha latiuscula   sp. nov.

( Figs 24 View FIGURES 19 – 25 , 75 View FIGURES 75 – 79 , 124 View FIGURES 123 – 128 , 171 View FIGURES 170 – 175 )

Type material. Holotype: ♂, China, Mt. Xinglong, Yuzhong County (35 ° 53 ′ N, 104 °06′ E), Gansu Province, 2120 m, 30.vii. 1993, coll. Houhun Li, genitalia slide No. L 95031 View Materials . Paratypes: 1 ♀, same data as for holotype; 1 ♀, 2130 m, 1.viii. 1993, other same data as for holotype; 1 ♀, 2178 m, 21.vii. 2007, coll. Feng Yang & Hanguang Gao, same locality as for holotype; 1 ♀, Buerjin County (47 ° 41 ′ N, 86 ° 59 ′ E), Xinjiang Uygur Autonomous Region, 504 m, 21.vii. 2007, coll. Xinpu Wang et al.

Diagnosis. This species can be easily separated from its congeners by the broad forewing with triangularly protruded apex and having several white and yellow patches on the distal half ( Fig. 24 View FIGURES 19 – 25 ). Ypsolopha latiuscula   is similar to Y. yangi Ponomarenko et Sohn   in having a narrow valva in the male genitalia, but can be distinguished by the sparsely denticular anellus that is densely hairy on the distal half in the latter ( Fig. 120 View FIGURES 117 – 122 ). Ypsolopha latiuscula   is also allied to Y. flaviterminata   sp. nov. in the female genitalia, but differs in the ductus bursae twisted near the corpus bursae ( Fig. 171 View FIGURES 170 – 175 ), which is straight in the latter species ( Fig. 160 View FIGURES 158 – 163 ).

Description. Adult ( Fig. 24 View FIGURES 19 – 25 ): Wing expanse 23.5 mm. Head grayish white, grayish brown around eyes. Antenna grayish white, ringed with light brown on each flagellomere. Labial palpus gray; tuft of second segment twice length of labial palpus; third segment extremely short, concealed in tuft of second segment. Thorax and tegula gray except dark brown at base of tegula. Forewing extremely broad, apex triangularly protruded; R 4 and R 5 separated ( Fig. 75 View FIGURES 75 – 79 ); yellowish brown, scattered with many erect black scales, pale yellowish brown between basal 1 / 3 of fold and basal half of dorsum; costa with a pale yellowish brown dot at middle, with a black dot below distal 1 / 7, with a diffused yellowish white patch on distal 1 / 4 extending to upper angle of cell, joined with yellow dot at distal 2 / 5 of cell by a narrow line; cell with a yellow dot at middle on end, with a black dot at upper angle of cell; black strip along median 1 / 3 of fold and on distal 1 / 4 of cell respectively; yellowish white strip arising from distal 1 / 3 of dorsum, extending to yellow dot at distal 2 / 5 of cell; two black dots placed on inside of termen above middle, three yellowish white dots along posterior half of termen, edged with three small black dots along inside; cilia grayish brown except whitish yellow below apex. Hindwing grayish brown; cilia concolorous with wing on basal half, pale gray on distal half. Foreleg grayish brown; mid- and hindlegs yellowish white, mixed with brown on outer surface, tarsi grayish brown on distal 1 / 3.

Male genitalia ( Fig. 124 View FIGURES 123 – 128 ): Uncus degenerate. Socius slender, parallel-sided to pointed apex. Ventral plate of gnathos tongue-shaped. Valva narrow, straight along costa, rounded at apex. Saccus shorter than socius, dilated at apex. Anellus slender, sparsely denticular. Phallus slender, straight, about 1.5 times length of valva; coecum about 1 / 5 length of phallus, slightly dilated; cornuti about a quarter length of phallus, composed of two rows of microspines.

Female genitalia ( Fig. 171 View FIGURES 170 – 175 ): Intersegmental membrane between papilla analis and 8 th abdominal segment broad, 1 / 2 length of abdomen. Apophyses posteriores about twice length of apophyses anteriores. Lamella postvaginalis V-shaped. Antrum slender, nearly cup-shaped. Ductus bursae about 1.5 times length of corpus bursae, dilated and twisted near corpus bursae. Corpus bursae ovate; signum about 3 / 10 length of corpus bursae, ridged at middle, narrowed posteriorly.

Distribution. China (Gansu, Xinjiang).

Etymology. The specific epithet is derived from the Latin latiusculus, meaning broad, referring to the broad forewing.