Lecithocera furvibasis, Yu & Wang, 2024

Yu, Shuai & Wang, Shuxia, 2024, The genus Lecithocera (Lepidoptera: Lecithoceridae) from China, with descriptions of twenty-one new species, European Journal of Taxonomy 924, pp. 1-74 : 17-18

Lecithocera furvibasis sp. nov.

urn:lsid:zoobank.org:act:E2004381-51F4-4247-B25E-38F98DAC9409

Figs 2F , 7C , 11F , 16C , 19B

Diagnosis

The new species is similar to L. castanoma Wu, 1997 and L. tumicuculla sp. nov. in the male genitalia by sharing a widened cucullus. The new species can be distinguished from the above mentioned species in appearance by the forewing having a triangular tornal streak, and in the female genitalia by the rounded signum of the corpus bursae lacking denticles and having a ridge. Lecithocera castanoma has no tornal streak (Park et al. 2016: 296, fig. 3) and L. tumicuculla sp. nov. has a uniformly narrow tornal streak on the forewing, and the ovate signum of the corpus bursae has dense denticles and lacks a ridge (Park et al. 2016: 300, fig. 33).

Etymology

The specific epithet is derived from the Latin “ furv -” and “ basis ”, referring to the forewing being dark brown basally.

Type material

Holotype

CHINA – Yunnan Province • ♂; Gaoligongshan ; 27º41′ N, 98º16′ E; 380 m a.s.l.; 28 May 2017; K.J. Teng leg.; slide no. YS18169 ; NKU.

Paratypes (17 ♂♂, 27 ♀♀)

CHINA – Yunnan Province • 8 ♂♂, 20 ♀♀; same collection data as for holotype except 28–31 May 2017; slide nos YS18168 ♂, YS18170 ♂, YS18171 ♀, YS20004 ♀; NKU . – Xizang Autonomous Region [Tibet] • 3 ♂♂, 3 ♀♀; Médog , 80 K; 2059 m a.s.l.; 7–8 and 19 Aug. 2017; M.J. Qi and X.F. Yang leg.; slide nos YS19069 ♂, YS19070 ♀; NKU • 1 ♂, 4 ♀♀; Médog , 80 K; 2076 m a.s.l.; 6–8 Aug. 2018; M.J. Qi leg.; NKU • 5 ♂♂; Bomi County, Yigong Country ; 2247 m a.s.l.; 5 Aug. 2017; M.J. Qi and X.F. Yang leg.; NKU .

Description

ADULT ( Figs 2F , 7C ). Wingspan 13.5–15.0 mm. Head dark brown except orange-yellow on frons and lateral sides. Antenna pale yellow. Labial palpus pale yellow on inner surface, dark yellowish brown on outer surface; third palpomere as long as second palpomere. Thorax and tegula dark brown. Forewing with costal margin slightly arched, apex blunt, termen oblique; ground colour orange white except dark brown basally; markings blackish brown: basal streak wide, about ¼ length of costal margin; discal stigma very small; discocellular stigma larger; tornal streak subtriangular, narrowed and meeting discocellular stigma anteriorly; fringe orange white; R 3 close to R 4+5 at base, R 4 and R 5 long-stalked, R 5 to costal margin before apex, M 2 and M 3 free, CuA 1 and CuA 2 short-stalked. Hindwing and fringe pale grey; fringe with orange white basal line; M 3 and CuA 1 coincident.

MALE GENITALIA ( Fig. 11F ). Uncus broadly V-shaped, rectangular anteriorly; caudal lobe digitiform, blunt apically. Gnathos with basal plate trapezoidal; median process broad at base, narrowed to distal ¼, then slender, curved ventrad in preapical sector by right angle. Valva broad at base, slightly narrowed to cucullus, ventral margin sinuate; cucullus about half length of valva, elliptical, widened medially, rounded apically, setose on ventral half; costal bar with basal half narrow, widened from middle toward valva, angled at middle; sacculus narrowly taenioid, about ¼ length of ventral margin of valva. Vinculum broad; saccus triangular. Juxta shield-shaped; posterior margin with small notch at middle; anterior margin with small triangular protrusion at middle; posterior lobe narrow taenioid, extending outward. Aedeagus slightly shorter than valva, broad at base, narrowed to basal ¼ where it is curved, then parallel-sided to before blunt apex, with one dorsal denticle, with dense granules in vesica; cornuti consisting of bundle of spines at basal ¼, bar about 2/5 length of aedeagus and rolled sclerite and band of spines distally.

SEVENTH ABDOMINAL STERNITE ( Fig. 16C ). Anterolateral rib forked basally, extending obliquely outward, not reaching posterior margin of sixth abdominal sternite; posterolateral lobe semiovate.

FEMALE GENITALIA ( Fig. 19B ). Eighth abdominal sternite arched on posterior margin. Apophyses posteriores about 5/3 as long as apophyses anteriores. Antrum cup-shaped, longer than wide, weakly sclerotized, spiculate. Ductus bursae longer than corpus bursae, broad except narrowed posteriorly, wrinkled; ductus seminalis arising from about middle, broadened basally forming sac, then much more slender. Corpus bursae ovate; signum situated posterior to middle, rounded, weakly sclerotized, with horizontal ridge at middle.

Distribution

China (Yunnan, Xizang).

Figures

Fig. 2. Adults of species of Lecithocera Herrich-Schäffer, 1853 (NKU), dorsal view. A. L. bigeminata sp. nov., holotype, male. B. L. chersitis Meyrick, 1918, male. C. L. duplicispinea sp. nov., holotype, male. D. L. flavalba sp. nov., holotype, male. E. L. flavistriata sp. nov., paratype, female. F. L. furvibasis sp. nov., paratype, male. Scale bars =2.0 mm.

Fig. 7. Wing venations of species of Lecithocera Herrich-Schäffer, 1853, all paratypes (NKU). A. L. flavalba sp. nov., female, slide no. YS19061. B. L. flavistriata sp. nov., male, slide no. YS19661. C. L. furvibasis sp. nov., female, slide no. YS20004. D. L. laticuculla sp. nov., male, slide no. YS19684. E. L. ligulacea sp. nov., male, slide no. LSR13453. F. L. margirecta sp. nov., male, slide no. ZMR10321. Scale bars =2.0 mm.

Fig. 11.Male genitalia of species of Lecithocera Herrich-Schäffer, 1853(NKU).A. L. bigeminata sp. nov., holotype, slide no. YS18192. B. L. chersitis Meyrick, 1918, slide no. YS19205. C. L. duplicispinea sp. nov., paratype, slide no. ZYM06270. D. L. flavalba sp. nov., holotype, slide no. YS19060. E. L. flavistriata sp. nov., paratype, male, slide no. YS19661. F. L. furvibasis sp. nov., holotype, slide no. YS18169. Scale bars=0.5 mm.

Fig. 16. Male seventh abdominal sternite of species of Lecithocera Herrich-Schäffer, 1853 (NKU). A. L. flavalba sp. nov., holotype, slide no. YS19060. B. L. flavistriata sp. nov., paratype, slide no. YS19661. C. L. furvibasis sp. nov., holotype, slide no. YS18169. D. L. haviensis Park, 2016, slide no. YS19710. E. L. laticuculla sp. nov., paratype, slide no. YS19684. F. L. ligulacea sp. nov., paratype, slide no. LSR13414. G. L. margirecta sp. nov., paratype, slide no. YS19483. H. L. medogensis sp. nov., holotype, slide no. YS19166. Scale bars =0.5 mm.

Fig. 19. Female genitalia of species of Lecithocera Herrich-Schäffer, 1853, all paratypes (NKU). A. L. flavistriata sp. nov., slide no. YS19705. B. L. furvibasis sp. nov., slide no. YS18171. C. L. haviensis Park, 2016, slide no. YS19719. D. L. laticuculla sp. nov., slide no. YS19685. E. L. ligulacea sp. nov., slide no. LSR13415. F. L. margirecta sp. nov., slide no. ZMR10284. Scale bars=0.5 mm.