Review of the genus Saridoscelis Meyrick, 1894 (Lepidoptera: Yponomeutidae) in China, with descriptions of four new species Author Liu, Haoyu 0009-0001-9556-1526 College of Life Sciences, Nankai University, Tianjin 300071, China & https: // orcid. org / 0009 - 0001 - 9556 - 1526 Author Wang, Shuxia 0000-0002-9316-6661 College of Life Sciences, Nankai University, Tianjin 300071, China & shxwang @ nankai. edu. cn; https: // orcid. org / 0000 - 0002 - 9316 - 6661 shxwang@nankai.edu.cn text Zootaxa 2023 2023-11-21 5375 1 128 136 https://www.mapress.com/zt/article/download/zootaxa.5375.1.8/52318 journal article 10.11646/zootaxa.5375.1.8 1175-5326 10170280 37D41B77-30F2-40E6-A8BB-212D56BBC83F Saridoscelis longiprocessa Wang , sp. nov. urn:lsid:zoobank.org:act: 28638710-5CE7-4EE5-A214-5C13929255C2 ( Figs 5 , 11 ) Type material. CHINA , Xizang : Holotype ♁, Lulang Town ( 29.77°N , 94.74°E ), 3308 m , 21.VIII.2018 , leg. MJ Qi , slide No. LHY21769. Diagnosis. The new species can be distinguished from its congeners in the male genitalia by the tegumen with a long, rod-shaped process medially at each side, and the valva roundly produced ventrobasally. Description. Adult ( Fig. 5 ). Wingspan 18.5 mm . Head white. Antenna white; flagellum ringed with dark brown dorsally. Labial palpus dark brown on outer surface, white on inner surface. Thorax and tegula dark grey, mottled with white. Forewing white; costal margin with basal 1/4 dark brown, distal 1/4 brown; subcostal line greyish brown, about 1/4 length of forewing; costal bar dark brown, from distal 1/3 of costal margin oblique to apex; dorsum with a greyish brown speckle formed by dense greyish brown scales diffused from base to basal 1/6; elongate subtriangular dark greyish brown patch edged with dark brown scales from between basal 1/6 and middle of dorsum narrowed obliquely outward to distal 2/5 of wing approaching to vein R 5 , dark brown stripe from its apex widened towards apex of forewing; subterminal line dark brown, extending from distal 1/3 of dorsum to apex, with dark greyish brown scales beyond its base; fringe brown along costal margin, white mottled with brown along termen. Hindwing greyish brown; fringe greyish brown in basal half and white in distal half, except pale grey along basal half of dorsum. Legs white; foreleg dark brown ventrally, fourth and fifth tarsomeres dark brown; tibia and tarsus of foreleg with dense white scales dorsally; fourth and fifth tarsomeres of midleg dark brown dorsally; fourth tarsomere of hindleg dark brown dorsally. Abdomen ( Fig. 11a ). Eighth abdominal sternite of male trapezoid, posterior margin 2 times width of anterior margin, slightly concave laterally. Male genitalia ( Fig. 11 ). Uncus stout, slightly narrowed to rounded apex. Socius slightly widened medially, with three rings of fringed sensillae in distal 1/3. Tegumen emarginated in triangle anteriorly, with a long, rod-shaped process medially at each side; anterolateral arm long, strongly curved at posterior 1/4. Ventral plate of gnathos fan-shaped; anterior margin heavily sclerotized and with a small mastoid medial process. Valva narrow and subparallel-sided from near base to before obtused apex, roundly produced ventrobasally; dorsoproximal process quadrate, slightly concave on inner margin. Saccus uniformly slender, except dilated from anterior 1/5 to apex. Aedeagus slender, strongly bent near base, narrow from near base to middle, slightly wider from 1/2 to distal 1/4, then tapered to apex, spinous in distal half; basal scape oval. Female unknown. Distribution. China ( Xizang ). Etymology. The specific epithet is derived from the Latin longi- and processus , referring to the long, rod-shaped process of the tegumen.