Lecithocera bigeminata Yu & Wang 2024, sp. nov.
Creators: name: Yu, Shuai
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lecithoceridae
Lecithocera
Lecithocera bigeminata

description: Lecithocera bigeminata sp. nov.
urn:lsid:zoobank.org:act: 0A724F62-A592-4EB8-8841-721BA5EF3019
Figs 2A, 6E, 11A, 15G, 18C
Diagnosis
The new species can be distinguished from its congeners by the thickened third palpomere of the labial palpus, the juxta with horn-shaped posterior lobes extending dorsad in the male genitalia, and the corpus bursae with two signa in the female genitalia.
Etymology
The specific epithet is derived from the Latin “ bigeminatus ”, referring to the corpus bursae with two signa in the female genitalia.
Type material
Holotype
CHINA – Chongqing • ♂; Mt Simian; 29º19′ N, 106º22′ E; 1000 m a.s.l.; 21 Jul. 2010; X.C. Du and L.F. Song leg.; slide no. YS18192; NKU.
Paratypes (87 ♂♂, 46 ♀♀)
CHINA – Chongqing • 8 ♂♂, 1 ♀; same collection data as for holotype except 20–21 Jul. 2010; slide nos LSR11045 ♀, LSR11052 ♂, YS20003 ♂; NKU • 12 ♂♂, 6 ♀♀; 1200–1280 m a.s.l.; 14–19 Aug. 2012; Y.H. Sun and A.H. Yin leg.; slide nos LSR12170 ♂, LSR12272 ♂, LSR12273 ♀; NKU • 7 ♂♂, 14 ♀♀; Mt Simian; 1280 m a.s.l.; 11–12 Aug. 2012; X.F. Yang and T.T. Liu leg.; slide no. LSR12267 ♂; NKU • 6 ♂♂, 3 ♀♀; Mt Jinyun; 29–30 Jul. 2010; X.C. Du and C.W. Bi leg.; slide nos YS18191 ♂, YS18193 ♀, YS18194 ♀; NKU • 24 ♂♂, 6 ♀♀; Mt Jinyun; 550 m a.s.l.; 16–17 Jul. 2011; X.C. Du et al. leg.; slide nos YS18214 ♂, YS18215 ♀, YS18134 ♂, YS18135 ♂, YS18136 ♀; NKU • 7 ♂♂, 6 ♀♀; Mt Jinyun; 550 m a.s.l.; 29–30 Jul. 2012; Y.H. Sun and A.H. Yin leg.; slide no. LSR12276; NKU • 1 ♂; E’mei City, Wanniansi; 830 m a.s.l.; 13 Jul. 2013; Teng et al. leg.; slide no. YS18178; NKU • 1 ♂; Qiuyang County, Mt Jinyin; 660 m a.s.l.; 25 Jul. 2012; Y.H. Sun and A.H. Yin leg.; NKU. – Fujian Province • 1 ♂; Mt Wuyi, Sangang; 740 m a.s.l.; 25 Jul. 2008; W.C. Li et al. leg.; slide no. ZMR10136; NKU. – Hubei Province • 1 ♂; Lichuan City, Maoba Region; 700 m a.s.l.; 29 Jul. 1999; H.H. Li leg.; slide no. ZMR10209; NKU. – Guangxi Zhuang Autonomous Region • 10 ♂♂, 4 ♀♀; Pingxiang City, Shaoping Forest Farm; 280 m a.s.l.; 1–3 May 2012, 14–17 Jun. 2013; X.F. Yang leg.; slide nos LSR12077 ♂, LSR13368 ♂, LSR13371 ♂, LSR13373 ♂, LSR13407 ♂; NKU • 4 ♂♂, 5 ♀♀; Huaping; 950 m a.s.l.; 6–8 Aug. 2006; W.C. Li leg.; NKU. – Guizhou Province • 2 ♂♂, 1 ♀; Jiangkou County, Heiwan; 600 m a.s.l.; 27–28 Jul. 2001; H.H. Li and X.P. Wang leg.; slide nos LSR11074 ♂, ZMR10264 ♂, ZMR10303 ♀; NKU. – Yunnan Province • 2 ♂♂; Mengla County, Menglun; 570 m a.s.l.; 15 Aug. 2005; Y.D. Ren leg.; slide no. ZMR10334; NKU • 1 ♂; Wenshan City, Malipo County; 1470 m a.s.l.; 26 Jul. 2016; Teng et al. leg.; slide no. YS19013; NKU.
Description
ADULT (Figs 2A, 6E). Wingspan 16.0‒ 16.5 mm. Head pale yellowish brown, orange white laterally. Antenna orange white; flagellum ringed with dark brown distally on dorsal surface. Labial palpus orange white on inner surface, yellowish brown on outer surface, third palpomere thickened, shorter than second palpomere. Thorax and tegula pale yellowish brown. Forewing with costal margin slightly arched, apex roundly produced, termen oblique; ground colour brownish yellow, mixed with dark brown scales, becoming denser toward apex; dense orange yellow scales along costal margin from distal ⅓ to before apex; markings blackish brown: basal streak slender, about ⅓ as long as costal margin; distal stigma small and rounded; discocellular stigma larger, oblong; tornal streak ill-defined; fringe pale greyish orange; R 3 and R 4+5 short-stalked, R 4 and R 5 stalked for about half length of R 5, R 5 to termen, M 2 and M 3 subparallel, CuA 1 and CuA 2 short-stalked. Hindwing and fringe greyish brown; fringe with pale yellow basal line; M 3 and CuA 1 stalked for about half length of M 3.
MALE GENITALIA (Fig. 11A). Uncus V-shaped; caudal lobe digitiform, rounded apically. Gnathos with basal plate undeveloped; median process wide at base, narrowed to distal ¼, then slender to pointed apex, curved ventrad at distal ¼ by right angle. Valva broad basally, narrowed before cucullus; cucullus about half length of valva, slightly narrowed to broadly rounded apex, shallowly concave on costal margin, setose on ventral half, with row of bullet-shaped setae along basal half of ventral margin; costal bar narrow, triangularly produced at middle on dorsal margin; sacculus taenioid. Vinculum broad; saccus not developed. Juxta shield-shaped, concave on lateral margin, straight on posterior margin, triangular on anterior margin; posterior lobe nearly horn-shaped, extending obliquely dorsad. Aedeagus shorter than valva, tubular, arched, with two dorsal denticles, with dense granules in vesica; cornuti consisting of long, basally plate-shaped sclerite bearing basal and apical tooth, plate with large apical horn, and bundle of spines placed at ventrobasal 3/5.
SEVENTH ABDOMINAL STERNITE (Fig. 15G). Anterior margin roundly convex, with horn-shaped process at middle; anterolateral rib bar-shaped, curved in middle, reaching before posterior margin of sixth abdominal sternite; posterolateral lobe weakly sclerotized, semiovate.
FEMALE GENITALIA (Fig. 18C). Eighth abdominal sternite concave at middle on posterior margin. Apophyses posteriores about twice as long as apophyses anteriores; both apophyses posteriores and anteriores rectangularly broadened anteriorly. Antrum cup-shaped, spiculate. Ductus bursae nearly as long as corpus bursae, weakly sclerotized and wrinkled near ductus seminalis; ductus seminalis arising from about posterior ¼. Corpus bursae ovate; signa two, at posterior 3/5: one elliptical, denticulate, with heavily sclerotized ridge; another smaller, denticulate.
Distribution
China (Chongqing, Fujian, Guangxi, Guizhou, Hubei, Yunnan).
Remarks
This species is slightly different from the other species of the genus Lecithocera in having a slightly thickened third palpomere of the labial palpus, but other characters including the venation and the male genitalia agree well with those of Lecithocera. Hence, we placed this species in Lecithocera.
description: Published as part of Yu, Shuai & Wang, Shuxia, 2024, The genus Lecithocera (Lepidoptera: Lecithoceridae) from China, with descriptions of twenty-one new species, pp. 1-74 in European Journal of Taxonomy 924 on pages 10-12, DOI: 10.5852/ejt.2024.924.2447, http://zenodo.org/record/10803382