Cedestis leucopterostigmatis Sohn and Wu 2010, n. sp.
Creators: name: Sohn, Jae-Cheon
name: Wu, Chun-Sheng
name: Han, Hui-Lin
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Yponomeutidae
Cedestis
Cedestis leucopterostigmatis

description: Cedestis leucopterostigmatis Sohn and Wu, n. sp.   
(Figures 1, 3)  
 Type. HOLOTYPE: 1♀, alt. 1100m, Mt. Lushan, Jiangxi Prov., China, 10 VII 1975 (YQ Liu), genitalia slide no. IOZ-09035.   
Holotype is deposited in the Institute of Zoology, Chinese Academy of Sciences, Beijing, China.  
 Diagnosis. This new species is closely related to Cedestis exiguata Moriuti, 1977 (Figure 2) which occurs in Japan and Korea (Sohn 2009). Both species are superficially very similar but differ from each other by the broader white marking around the forewing pterostigma in C. leucopterostigmatis. The former is also distinguished from the latter by the female genitalia: ductus bursae 1.5 times longer and signum placed closer to junction with ductus bursae (Figures 3 and 4).   
 Description. Head. Vertex rough with long, white piliform scales, tipped with grayish brown near frontoclypeus; frons dark brown. Antenna filiform, half as long as forewing; scape with scales dark brown on distal two-thirds, white on basal third, pectens dark brown, tipped with white; each of basal eight flagellomeres with two whorls of dark brown scales white basally, remainder of segments with a white basal and a dark brown distal whorl of scales on each flagellomere. Labial palpus nearly straight, two times longer than eye diameter, white dorsally, dark brown ventrally; third segment as long as second, with slightly dense scale tufts distally.   
 Thorax and abdomen. Patagium orange-white; tegula and mesonotum purplish brown. Fore- and midleg with coxa to tibia white, intermixed with dark brown; tarsi white, with a dark brown ring on the distal end of each segment. Hindleg with coxa to tibia dark grayish brown dorsally, white ventrally; tarsomeres white dorsally and basally, dark brown ventrally on distal two-thirds. Forewing length 6.3 mm (n = 1), costa broadly curved, subtriangular terminally, lustrous purplish brown, intermixed with white broadly spread from discal cell to apex; fringes white before apex, grayish brown after apex. Hindwing dark brown, tinged with gray on anal areas; fringes yellow-brownish gray. Abdomen dark gray dorsally, pale gray ventrally.   
 Female genitalia (Figure 3). Papilla analis subtriangular, setose, as long as eighth abdominal segment; inter-segmental membrane after eighth segment short; a pair of small setose humps on eighth sternite; apophysis anterioris as long as apophysis posterioris plus Y branches. Ostium bursae small; antrum incompletely surrounding base of ostium. Ductus bursae narrow, tubular, with granules except at entrance, denser near corpus, nine times longer than corpus bursae, sinuate. Corpus bursae oval; signum near to cervix, elongate rhomboid, scobinate.   
 Distribution. China (southeast).   
 Etymology. The species epithet, leucopterostigmatis, is derived from the genitive of a Greek noun, pterostigma, combined with the Greek root, leuco, meaning “white”, and refers to a white pterostigma on forewings of the new species.
description: Published as part of Sohn, Jae-Cheon, Wu, Chun-Sheng & Han, Hui-Lin, 2010, Three new species of Yponomeutinae (Lepidoptera: Yponomeutidae) from China with faunistic supplements and an updated list of the Chinese species of the subfamily, pp. 2803-2816 in Journal of Natural History 44 (45 - 46) on pages 2804-2806, DOI: 10.1080/00222933.2010.503942, http://zenodo.org/record/5212123