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 yunnanensis sp. nov. urn:lsid:zoobank.org:act: 4FFC5DF4-78AE-41F8-BC5D-8C4696AB9515 Figs 5D , 9D , 14D , 17K , 21C Diagnosis The new species is similar to L. manesa Wu & Liu, 1992 in the male genitalia. It can be distinguished by the forewing bearing a tornal streak, by the aedeagus without a dorsal denticle in the male genitalia, and in the female genitalia by the signum of the corpus bursae being without denticles. In L. manesa , the tornal streak is absent, the aedeagus has two dorsal denticles, and the signum has dense denticles ( Wu & Liu 1992: 679 , fig. 2140). Fig. 21. Female genitalia of species of Lecithocera Herrich-Schäffer, 1853 , all paratypes (NKU). A . L. tenuextrema sp. nov. , slide no. LSR12316. B . L. tumicuculla sp. nov. , slide no. YS18084. C . L. yunnanensis sp. nov. , slide no. YS19621. Scale bars =0.5 mm. Etymology The specific epithet is derived from the type locality Yunnan . Type material Holotype CHINA – Yunnan Province • ♂ ; Xishuangbanna , Yexianggu ; 22º10′ N , 100º52′ E ; 762 m a.s.l. ; 20 Jul. 2014 ; K.J. Teng et al . leg.; slide no. YS19612 ; NKU . Paratypes ( 40 ♂♂ , 18 ♀♀ ) CHINA – Yunnan Province • 14 ♂♂ , 5 ♀♀ ; same collection data as for holotype except 17‒20 Jul. 2014 ; slide no. YS19619 ♀; NKU • 5 ♂♂ ; Xishuangbanna , Yexianggu ; 762 m a.s.l. ; 10‒12 Jul. 2015 ; K.J. Teng and X. Bai leg.; slide no. YS19616 ; NKU • 2 ♂♂ ; Xishuangbanna , Yexianggu ; 762 m a.s.l. ; 21‒23 Jul. 2019 ; K.J. Teng et al . leg.; NKU • 11 ♂♂ , 8 ♀♀ ; Xishuangbanna ; 20‒29 May 2015 ; Z.G. Zhang leg.; slide nos YS19620 ♂, YS19621 ♀; NKU • 2 ♂♂ ; Xishuangbanna ; 4‒5 Jun. 2015 ; Z.G. Zhang leg.; NKU • 1 ♂ , 3 ♀♀ ; Mengla County , Bubeng ; 680 m a.s.l. ; 23 Jul. 2019 ; K.J. Teng et al . leg.; NKU • 1 ♂ , 1 ♀ ; Jinghong City , Menglun ; 580 m a.s.l. ; 3, 6 Aug. 2014 ; K.J. Teng et al. leg.; NKU • 4 ♂♂ , 1 ♀ ; Jinghong City , Mt Jinuo ; 1003 m a.s.l. ; 21‒30 Jul. 2019 ; K.J. Teng et al . leg.; NKU . Description ADULT ( Figs 5D , 9D ). Wingspan 12.0‒13.0 mm. Head yellowish brown. Antenna pale orange; flagellum ringed with dark brown. Labial palpus pale orange on inner surface, dark brown on outer surface; second palpomere roughly scaled dorsally; third palpomere nearly as long as second palpomere. Thorax and tegula brownish yellow. Forewing with costal margin slightly arched, apex blunt, termen oblique; ground colour brown, mixed with dense rough yellowish brown and greyish brown scales in distal ⅓; basal streak dark brown, distinct at base; markings black: discal stigma small; discocellular stigma larger, elliptical; tornal streak wide, reaching before discocellular stigma anteriorly; fringe dark grey, basal line pale brownish yellow; R 3 , R 4 and R 5 stalked, R 5 to termen, M 2 and M 3 free, CuA 1 and CuA 2 short-stalked. Hindwing and fringe grey; fringe with basal line pale yellow; M 3 and CuA 1 stalked for about half length of M 3 . MALE GENITALIA ( Fig. 14D ). Uncus subtriangular, shallowly concave on posterior margin. Gnathos with lateral arms broad, triangularly produced on posterior margin; median process wide at base, narrowed to distal ¼, thereafter slender to pointed apex, curved ventrad preapically. Valva broad basally; cucullus longer than half length of valva, slightly narrowed to before rounded apex, shallowly concave on costal margin, densely setose, with several bullet-shaped setae medially along ventral margin; costal bar narrow, gently arched; sacculus narrow, reaching cucullus. Vinculum broad; saccus not developed. Juxta shield-shaped, gently concave at middle on posterior margin; posterior lobe narrow, extending outward. Aedeagus about 4/5 length of valva, wide at base, narrowed to blunt apex, without dorsal denticle; cornuti consisting of two bundles of spines at basal ⅓ and ⅔ respectively, curved sclerite about ¼ length of aedeagus and bearing apical spine. SEVENTH ABDOMINAL STERNITE ( Fig. 17K ). Anterior margin bell-shaped; anterolateral rib thin and curved, reaching before posterior margin of sixth abdominal sternite; posterolateral lobe elongate, triangular, and slender distally. FEMALE GENITALIA ( Fig. 21C ). Eighth abdominal sternite arched gently on posterior margin. Apophyses posteriores about twice as long as apophyses anteriores. Antrum weakly sclerotized, cup-shaped, spiculose. Ductus bursae nearly as long as corpus bursae, widened toward corpus bursae, anterior part as wide as corpus bursae; ductus seminalis dilated subbasally and forming subrounded sac, then slender. Corpus bursae elliptical; signum at middle, elliptical, posteriorly with semiovate flap. Distribution China ( Yunnan ).