Lecithocera yunnanensis, 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 : 51-53

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).

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).

Figures

Fig. 5. Adults of species of Lecithocera Herrich-Schäffer, 1853, all paratypes (NKU), dorsal view. A. L. serratiloba sp. nov., female. B. L. tenuextrema sp. nov., male. C. L. tumicuculla sp. nov., male. D. L. yunnanensis sp. nov., female. Scale bars =2.0 mm.

Fig. 9. Wing venations of species of Lecithocera Herrich-Schäffer, 1853, all paratypes (NKU). A. L. serratiloba sp. nov., female, slide no. LSR11261. B. L. tenuextrema sp. nov., male, slide no. LSR12079. C. L. tumicuculla sp. nov., female, slide no. YS18084. D. L. yunnanensis sp. nov., male, slide no. YS19620. Scale bars =2.0 mm.

Fig. 14. Male genitalia of species of Lecithocera Herrich-Schäffer, 1853 (NKU). A. L. serratiloba sp. nov., paratype, slide no. LSR14024. B. L. tenuextrema sp. nov., holotype, slide no. LSR13405. C. L. tumicuculla sp. nov., paratype, slide no. YS18085. D. L. yunnanensis sp. nov., paratype, slide no. YS19616. Scale bars =0.5 mm.

Fig. 17. Male seventh abdominal sternite of species of Lecithocera Herrich-Schäffer, 1853 (NKU). A. L. neosticta Meyrick, 1918, slide no. LSR13344.B. L. nullisigna sp. nov., holotype, slide no.YS19467. C. L. orbiculata Park, 2010, slide no. LSR13465. D. L. parviflava sp. nov., holotype, slide no. YS19645. E. L. parvispinea sp. nov., paratype, slide no. LSR11259. F. L. sichuanensis sp. nov., holotype, slide no. YS19028. G. L. rubigona Park, 2006, slide no. YS19753. H. L. serratiloba sp. nov., paratype, slide no. LSR14024. I. L. tenuextrema sp. nov., holotype, slide no. LSR13405.J. L. tumicuculla sp. nov., paratype, slide no. YS18085. K. L. yunnanensis sp. nov., paratype, slide no. YS19616. Scale bars =0.5 mm.

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.