Ypsolopha diana ( Caradja, 1939 )

Jin, Qing, Wang, Shuxia & Li, Houhun, 2013, Review of the genus Ypsolopha Latreille, 1796 from China (Lepidoptera: Ypsolophidae), Zootaxa 3705 (1), pp. 1-91 : 56-57

Ypsolopha diana ( Caradja, 1939)

( Figs 53 , 102 , 153 , 197 )

Cerostoma diana, 1939: 14 .

Ypsolopha diana (Caradja) : Beccaloni et al. 2003 [accessed 9 January 2012]; Sohn et al., 2010: 32 . Type locality: China (Shanxi).

Redescription. Adult ( Fig. 53 ): Wing expanse 24.0−28.5 mm. Head rough, white to pale yellow; face white, brown around eyes. Antenna yellowish brown; scape white, with a grayish brown strip on dorsal surface; flagellum ringed with yellowish white. Labial palpus yellowish white, white on outer surface of second segment; tuft of second segment narrow triangular, with appressed scales; third segment extremely short, concealed in tuft of second segment. Thorax yellowish white, longitudinally with a median grayish brown strip. Tegula gray, longitudinally with a median yellowish white strip. Forewing with CuA1 and CuA2 stalked ( Fig. 102 ); yellowish white, mixed with black scales on distal 1/3, dark gray at apex, pale gray above dorsum and tornus as well as along inside of termen, with yellowish brown strips along veins, with a black dot near base above dorsum; cell with two black dots at middle and one large triangular black patch at end; fold brown on basal half, with black dot below middle. Hindwing gray; cilia concolorous with wing, with a yellow basal line. Fore- and midlegs brown except yellowish white on femora, tibiae with a white strip on outer side; hindleg yellowish white, dark on tarsus, tibia with a brown strip on outer side.

Male genitalia ( Fig. 153 ): Uncus inconspicuous. Socius tapering to pointed apex. Ventral plate of gnathos large ovate, densely spinous. Valva elongate ovate, concave on ventral margin near base. Saccus about 2/3 length of socius, slender, parallel-sided. Anellus about a quarter length of phallus, with distal half sparsely spinous. Phallus about 1.4 times length of valva, curved conspicuously at middle; coecum 2/5 length of phallus, narrow; cornuti composed of two rows of microspines, about 1/5 length of phallus.

Female genitalia ( Fig. 197 ): Intersegmental membrane between papilla analis and 8th abdominal segment about 1/2 length of abdomen. Apophyses posteriores about twice length of apophyses anteriores. Lamella postvaginalis V-shaped. Antrum slender, nearly parallel-sided. Ductus bursae slightly shorter than corpus bursae, dilated and sclerotized on anterior half, granulous near corpus bursae. Corpus bursae rounded; signum about 3/10 length of corpus bursae, ridged at anterior 1/3, anterior half semicircular, posterior half sharply narrowed.

Material examined. 1 ♂, Shuangyuanfeng, Mt. Xinglong (40°36′ N, 117°29′ E), Hebei Province, 800 m, 25.vii.2011, coll. Houhun Li & Yanpeng Cai; 3 ♂♂, Mt. Li, Jincheng (35°30′ N, 112°51′ E), Shanxi Province, 1500 m, 17−19.viii.2006, coll. Xu Zhang & Haiyan Bai; 1 ♀, Wolong (31°29′ N, 103°36′ E), Sichuan Province, 1900 m, 2004. viii.8, coll. Yingdang Ren.

Distribution. China (Hebei, Shanxi, Sichuan).

Diagnosis. Ypsolopha diana is characterized by having a long coecum that is 2/5 length of the phallus in the male genitalia ( Fig. 153 ). It is similar to Y. nemorella (Linnaeus) in facies, but differs in the forewing having a triangular black patch at end of the cell ( Fig. 53 ), which is represented by a small black dot in the latter species.

Ypsolopha diana is also similar to Y. strigosa (Butler) in the female genitalia, but can be separated by the ductus bursae sclerotized on the anterior half and granulous near the corpus bursae ( Fig. 197 ); while the ductus bursae is membranous throughout and granulous on the posterior 1/ 3 in Y. strigosa ( Fig. 181 ).

Remarks. The male and female genitalia of this species are described for the first time.

Figures

FIGURES 48 – 54. Adults of Ypsolopha spp. 48. Y. aurea sp. nov., paratype, ♂; 49. Y. blandella (Christoph), ♂; 50. Y. chlorina sp. nov., holotype, ♂; 51. Y. nemorella (Linnaeus), ♂; 52. Y. bisticta sp. nov., paratype, ♀; 53. Y. diana (Caradja), ♂; 54. Y. acuminata (Butler), ♂.

FIGURES 98 – 104. Wing venation of Ypsolopha spp. 98. Y. blandella (Christoph), slide no. JQ 07106 ♂ W; 99. Y. chlorina sp. nov., paratype, slide no. JQ 07294 ♂ W; 100. Y. nemorella (Linnaeus), slide no. JQ 07106 ♂ W; 101. Y. bisticta sp. nov., paratype, slide no. JQ 07305 ♀ W; 102. Y. diana (Caradja), slide no. JQ 07306 ♂ W; 103. Y. purpurata sp. nov., paratype, slide no. JQ 08011 ♀ W; 104. Y. acuminata (Butler), slide no. JQ 08286 ♂ W.

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 194 – 197. Female genitalia of Ypsolopha spp. 194. Y. chlorina sp. nov., paratype, slide no. JQ 07294; 195. Y. ne morella (Linnaeus), slide no. JQ 07058; 196. Y. bisticta sp. nov., paratype, slide no. JQ 07305; 197. Y. diana (Caradja) slide no. JQ 07059.

FIGURES 176 – 181. Female genitalia of Ypsolopha spp. 176. Y. brevivalva sp. nov., paratype, slide no. L 94314; 177. Y. longifloccosa sp. nov., paratype, slide no. JQ 07288; 178. Y. altissimella (Chrétien), slide no. JQ 07250; 179. Y. contractella (Caradja), slide no. JQ 08024; 180. Y. albistriata (Issiki), slide no. JQ 07089; 181. Y. strigosa (Butler), slide no. JQ 07286.