Lecithocera flavistriata, 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 : 15-16

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).

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.