Ypsolopha helva Sohn et Wu 2010
Creators: name: Jin, Qing
name: Wang, Shuxia
name: Li, Houhun
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Plutellidae
Ypsolopha
Ypsolopha helva

description: Ypsolopha helva Sohn et Wu, 2010
(Figs 29, 79, 129, 175)
Ypsolopha helva Sohn et Wu, 2010: 25. Type locality: China (Xinjiang).
Description. Adult (Fig. 29): Wing expanse 13.5−14.0 mm. Vertex white mixed with pale brown; face white. Antenna with scape grayish on dorsal surface, pale yellowish brown on ventral surface; grayish white ringed with dark brown on each flagellomere. Labial palpus white, mottled brown, grayish white on dorsal side of second and third segments; tuft of second segment triangular, slightly shorter than labial palpus; third segment a little shorter than second. Thorax white scattered with grayish black scales. Tegula brown mixed with gray. Forewing with M3 and CuA1 connate (Fig. 79); yellowish white, scattered with pale yellowish brown scales; costa with about 11 dots or strigulae; cell with irregular dark brown patch at 1/3, 2/3 and end respectively, extending cross fold; narrow dark brown fascia extending obliquely from apex to tornus; brown spot above tornus; cilia white mixed with dark brown. Hindwing and cilia pale grayish brown. Fore- and midlegs dark brown mixed with grayish white except tarsi grayish white mixed with brown on ventral side; hindleg white, mixed with pale gray on outer surface. Abdomen grayish brown on dorsal surface, grayish white on ventral surface.
Male genitalia (Fig. 129): Uncus degenerate. Socius slender, ending in point. Ventral plate of gnathos long ovate. Valva ovate, protruded at 2/3 on dorsal margin, ventral margin with a row of fine spines extending from near base to distal 1/4. Saccus about 2/3 length of socius, slightly pointed at apex. Anellus about 1/5 length of phallus, densely spinous in distal half. Phallus extremely slender, about 1.5 times length of valva; coecum about 1/7 length of phallus; cornuti composed of two slender spines, about 3/5 length of phallus.
Female genitalia (Fig. 175): Intersegmental membrane between papilla analis and 8th abdominal segment 3/5 length of abdomen. Apophyses posteriores about 2.5 times length of apophyses anteriores. Lamella postvaginalis Y-shaped. Antrum somewhat cup-shaped. Ductus bursae extremely slender, longer than corpus bursae. Corpus bursae ovate; signum about 3/10 length of corpus bursae, ridged at anterior 1/3 and near posterior end respectively.
Material examined: Holotype ♂, Tuomurji, Xinjiang Uygur Autonomous Region, 4.vii.1977, coll. CJ Li (IZCAS) (examined).
Additional material. 3 ♂♂, 1 ♀, Xunhua County (30°50′ N, 102°28′ E), Qinghai Province, 2240 m, 15.vii.1995, coll. Houhun Li & Shuxia Wang, genitalia slide No. JQ07278 ♂.
Diagnosis. This species is similar to Y. curatorella Baraniak, 2005 externally, but can be distinguished by the longer phallus that is 1.5 times length of the valva in the male genitalia (Fig. 129), and the Y-shaped lamella postvaginalis in the female genitalia (Fig. 175). In Y. curatorella Baraniak, the phallus is slightly shorter than the valva and the lamella postvaginalis comprizes a pair of sclerotized longitudinal bands (Baraniak 2005: Figs 7, 9).
Distribution. China (Qinghai, Xinjiang).
Remarks. The female of this species is described for the first time.
description: Published as part of Jin, Qing, Wang, Shuxia & Li, Houhun, 2013, Review of the genus Ypsolopha Latreille, 1796 from China (Lepidoptera: Ypsolophidae), pp. 1-91 in Zootaxa 3705 (1) on page 35, DOI: 10.11646/zootaxa.3705.1.1, http://zenodo.org/record/284569