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

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Ypsolopha capitalba

sp. nov.

Ypsolopha capitalba   sp. nov.

( Figs 44 View FIGURES 40 – 47 , 93 View FIGURES 92 – 97 , 144 View FIGURES 141 – 146 )

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 View FIGURES 40 – 47 ). 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 View FIGURES 141 – 146 ).

Description. Adult ( Fig. 44 View FIGURES 40 – 47 ): 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, CuA 1 and CuA 2 separated ( Fig. 93 View FIGURES 92 – 97 ); 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 View FIGURES 141 – 146 ): 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.