The genus Lecithocera (Lepidoptera: Lecithoceridae) from China, with descriptions of twenty-one new species Author Yu, Shuai ED27A3A5-C89F-4341-83F1-8141A0D980C4 College of Life Sciences, Nankai University, Tianjin 300071, P. R. China. & College of Life Sciences, Liaocheng University, Liaocheng 252000, P. R. China. yushuai088@163.com Author Wang, Shuxia 648D6695-A0B9-483C-8C19-61F81EB5238D College of Life Sciences, Nankai University, Tianjin 300071, P. R. China. shxwang@nankai.edu.cn text European Journal of Taxonomy 2024 2024-02-29 924 1 74 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2447/10847 journal article 10.5852/ejt.2024.924.2447 2118-9773 10803382 C06B6616-6766-4A9E-9FE8-8463FB56449C Lecithocera flavistriata sp. nov. urn:lsid:zoobank.org:act: 88C3F035-7CC8-4E99-9BEA-221EA12096BC Figs 2E , 7B , 11E , 16B , 19A Diagnosis The new species is similar to L. neosticta Meyrick, 1918 in the male genitalia. It can be distinguished by the hindwing with M 3 and CuA 1 coincident, and the male genitalia with the cucullus about 3/5 the length of the valva and widened distally; whereas in L. neosticta , the hindwing has M 3 and CuA 1 stalked, the cucullus is half the length of the valva and narrowed distally. Etymology The specific epithet is derived from the Latin “ flav -” and “ striatus ”, referring to the forewing with an orange-yellow stripe along the costal margin distally. Type material Holotype CHINA – Yunnan Province • ♂ ; Gongshan County , Pukawang Village ; 27º50′ N , 98º19′ E ; 1335 m a.s.l. ; 11 Jun. 2017 ; K.J. Teng et al . leg.; slide no. YS19606 ; NKU . Paratypes ( 3 ♂♂ , 5 ♀♀ ) CHINA – Yunnan Province • 1 ♂ ; same collection data as for holotype; slide no. YS19661 ; NKU • 1 ♂ , 1 ♀ ; Baoshan City , Nankang ; 2009 m a.s.l. ; 17 Aug. 2014 ; K.J. Teng et al . leg.; slide nos YS19704 ♂, YS19780 ♀; NKU • 4 ♀♀ ; Gaoligongshan ; 2157 m a.s.l. ; 22‒24 Jul. 2015 ; K.J. Teng and X. Bai leg.; slide no. YS19705 ; NKU • 1 ♂ ; Gaoligongshan , Qinlangdang ; 380 m a.s.l. ; 28 May 2017 ; K.J. Teng et al . leg.; NKU . Description ADULT ( Figs 2E , 7B ). Wingspan 12.0‒ 12.5 mm . Head brown, with orange yellow scales laterally.Antenna pale orange; flagellum ringed with dark brown. Labial palpus pale orange except dark brown ventrally on third palpomere; third palpomere shorter than second palpomere. Thorax and tegula brown. Forewing with costal margin slightly arched, apex rounded, termen oblique; ground colour dark brown, orange yellow along costal margin from distal ¼ to before apex forming short stripe; discal and discocellular stigmata blackish brown, ill-defined; tornal streak blackish brown; fringe greyish brown; R 3 close to R 4+5 at base, R 4 and R 5 stalked for half length of R 5 , R 5 to costal margin before apex, M 2 and M 3 separated, CuA 1 and CuA 2 short-stalked. Hindwing and fringe greyish brown; fringe with orange white basal line; M 2 and M 3 +CuA 1 arising from same point, M 3 and CuA 1 coincident. MALE GENITALIA ( Fig. 11E ). Uncus Y-shaped; caudal lobe digitiform, rounded and setose apically. Gnathos with basal plate rounded on posterior margin; median process narrowly elongate, wide at base, narrowed to distal ⅓ where it is curved, then slender to a pointed apex. Valva broad basally, narrowed before cucullus; cucullus about 3/5 length of valva, narrowed slightly before middle, then widened to obliquely blunt apex, shallowly concave on costal margin, setose on ventral half; costal bar narrow in basal half, widened from middle toward valva, gently angled at middle; sacculus distinct basally, narrow taenioid. Vinculum broad; saccus semiovate. Juxta shield-shaped, concave at middle on posterior margin, with triangular process at middle on anterior margin; posterior lobe narrow taenioid, extending outward. Aedeagus about ¾ length of valva, uniform except slightly wider at base, gently curved, without dorsal denticle, with dense granules in vesica; cornuti consisting of anchor-shaped sclerite apically, basally curved bar about ⅓ length of aedeagus, recurved sclerite placed medially and band of spines at distal ⅓. SEVENTH ABDOMINAL STERNITE ( Fig. 16B ). Anterolateral rib thin, forked basally, extending obliquely outward distally, not reaching posterior margin of sixth abdominal sternite; posterolateral lobe weakly sclerotized, subtriangular. FEMALE GENITALIA ( Fig. 19A ). Eighth abdominal sternite slightly concave at middle on posterior margin. Apophyses posteriores about twice as long as apophyses anteriores. Antrum cup-shaped, slightly longer than wide, spiculose. Ductus bursae nearly as long as corpus bursae, narrow, dilated medially; ductus seminalis dilated subbasally and forming elliptical sac, then slender, arising from about posterior 2/5 of ductus bursae. Corpus bursae ovate, granulose; signum subrounded, denticulate, situated posterior to middle of corpus bursae. Distribution China ( Yunnan ).