Ypsolopha capitalba, 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 : 49

Ypsolopha capitalba sp. nov.

( Figs 44 , 93 , 144 )

Type material. Holotype: ♂, China, Gongliu County (43°28′ N, 82°13′ E), Xinjiang Uygur Autonomous Region, 1500 m, 29.vii.1994, coll. Houhun Li & Hongyan Qin, genitalia slide No. JQ07040.

Diagnosis. This species is similar to Y. dentella (Fabricius) and Y. varidentella sp. nov. superficially, but can be distinguished by the forewing having a black dot below the middle of the fold and having a white dorsal band, as well as by the the white head and thorax ( Fig. 44 ). In Y. dentella and Y. varidentella sp. nov., the dot below the fold is absen; the head, the thorax, and the dorsal band of the forewing are yellowish white in Y. dentella , grayish brown in Y. varidentella sp. nov. Ypsolopha capitalba sp. is allied to Y. ulingensis Yang in the male genitalia, but differs in the elongate ovate valva and the parallel-sided saccus; in Y. ulingensis Yang , the valva is ovate, and the saccus is narrowed on basal 1/4 ( Fig. 142 ).

Description. Adult ( Fig. 44 ): Wing expanse 21.0 mm. Vertex rough, white; face white, pale brown around eyes. Antenna white, ringed with brown on each flagellomere. Labial palpus white, yellowish brown on outer side of second segment; tuft of second segment triangular, much longer than labial palpus; third segment 1/3 length of second. Thorax white. Tegula ocherous brown. Forewing with apex triangularly hooked, CuA1 and CuA2 separated ( Fig. 93 ); ocherous brown, grayish brown along distal 2/3 of costa and from end of cell to termen, ocherous yellow mixed with brown on tornal area; cell with a short white oblique strip at end; fold with black dot below middle; dorsal band white, mixed with pale yellow and brown scales; cilia yellow on basal half, grayish brown on distal half. Hindwing and cilia dark gray. Legs white, scattered with brown cscales on outer side; mid- and hindlegs much paler.

Male genitalia ( Fig. 144 ): Uncus triangular. Socius slender, tapering distally. Ventral plate of gnathos large, triangular, densely spinous. Valva elongate ovate, distal 1/3 protrudent dorsally. Saccus stout, about 3/5 length of socius, parallel-sided to sharp apex. Anellus 3/10 length of phallus, sparsely spinous. Phallus as long as valva; coecum stout, 1/4 length of phallus; cornuti composed of two rows of microspines, 2/5 length of phallus.

Female: Unknown.

Distribution. China (Xinjiang).

Etymology. The specific epithet is derived from the Latin prefix capit-, meaning head, and the Latin albus, meaning white, referring to the white vertex.

Figures

FIGURES 40 – 47. Adults of Ypsolopha spp. 40. Y. umbrina sp. nov., holotype, ♂; 41. Y. dentella (Fabricius), ♂; 42. Y. ulingensis Yang, ♂; 43. Y. varidentella sp. nov., paratype, ♀; 44. Y. capitalba sp. nov., holotype, ♂; 45. Y. yasudai Moriuti, ♂; 46. Y. falcella (Denis et Schiffermüller), ♂; 47. Y. triangula sp. nov., holotype, ♂.

FIGURES 92 – 97. Wing venation of Ypsolopha spp. 92. Y. varidentella sp. nov., paratype, slide no. JQ 07097 ♀ W; 93. Y. capitalba sp. nov., holotype, slide no. JQ 07040 ♂ W; 94. Y. yasudai Moriuti, JQ 07438 ♂ W; 95. Y. falcella (Denis et Schiffermüller), slide no. JQ 07299 ♀ W; 96. Y. triangula sp. nov., holotype, slide no. JQ 07068 ♂ W; 97. Y. aurea sp. nov., paratype, slide no. JQ 07079 ♂ W.

FIGURES 141 – 146. Male genitalia of Ypsolopha spp. 141. Y. dentella (Fabricius), slide no. JQ 07239; 142. Y. ulingensis Yang, slide no. JQ 07354; 143. Y. varidentella sp. nov., paratype, slide no. JQ 07358; 144. Y. capitalba sp. nov., holotype, slide no. JQ 07040; 145. Y. yasudai Moriuti, slide no. JQ 07273; 146. Y. falcella (Denis et Schiffermüller )), slide no. JQ 07300.