Lecithocera margirecta, 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 : 22-23

Lecithocera margirecta sp. nov.

urn:lsid:zoobank.org:act:BB360F68-63D8-42D6-901C-13EAD09788E3

Figs 3D , 7F , 12D , 16G , 19F

Diagnosis

The new species is similar to L. eremiodes Park, 2010 in the male genitalia by sharing an elongate cucullus with a straight costal margin. It can be distinguished by the forewing with basal streak indistinct and without plical stigma, the hindwing with M 3 and CuA 1 coincident, and in the male genitalia by the aedeagus with two dorsal denticles; in L. eremiodes , the forewing has a black basal streak and a dark brown plical stigma, the veins M 3 and CuA 1 are stalked in the hindwing, and the aedeagus has one dorsal denticle ( Park & Wu 2010: 68, fig. 22).

Etymology

The specific epithet is derived from the Latin “ marg -” and “ rectus ”, referring to the straight cucullus on the costal margin in the male genitalia.

Type material

Holotype

CHINA – Guizhou Province • ♂; Suiyang County, Kuangkuoshui ; 28º15′ N, 107º12′ E; 1500 m a.s.l.; 12 Aug. 2010; L.L. Yang leg.; slide no. ZMR10323 ; NKU.

Paratypes (11 ♂♂, 5 ♀♀)

CHINA – Guizhou Province • 2 ♀♀; same collection data as for holotype except 13 Aug. 2010; slide nos ZMR10284 , ZMR10322 ; NKU • 1 ♂; Jiangkou County, Heiwan ; 600 m a.s.l.; 27 Jul. 2001; H.H. Li and X.P. Wang leg.; slide no. ZMR10151 ; NKU • 1 ♂; Mt Fanjing ; 1300 m a.s.l.; 2 Aug. 2001; H.H. Li and X.P. Wang leg.; slide no. ZMR10262 ; NKU • 5 ♂♂, 3 ♀♀; Jiangkou, Taiping Town ; 540 m a.s.l.; 15‒16 Jul. 2019; M.R. Xing et al. leg.; slide nos YS19568 ♂, YS19578 ♂, YS19579 ♀; NKU • 14 ♂♂, 2 ♀♀; Suiyang County, Kuankuoshui ; 1491 m a.s.l.; 7‒8 Jul. 2019; M.R. Xing et al. leg.; NKU . – Hunan Province • 3 ♂♂; Sangzhi County, Mt Badagong; 1250 m a.s.l.; 12‒13 Aug. 2001; H.H. Li and X.P. Wang leg.; slide nos YS19483 , ZMR10228 , ZMR10321 ; NKU. – Guangxi Zhuang Autonomous Region • 1 ♂; Huaping ; 1300 m a.s.l.; 1 Aug. 2006; W.C. Li leg.; slide no. LSR11289 ; NKU .

Description

ADULT ( Figs 3D , 7F ). Wingspan 14.5‒15.0 mm. Head yellowish brown, orange white on lateral sides. Antenna orange white. Labial palpus with second palpomere orange white on inner surface, pale brownish yellow on outer surface; third palpomere orange white dorsally, dark brown ventrally, as long as second palpomere. Thorax and tegula orange white. Forewing with costal margin slightly arched, apex rounded, termen oblique; ground colour orange white, with scattered dark brown scales, becoming denser distally; markings blackish brown: discal stigma rounded; discocellular stigma larger, slightly dilated anteriorly; tornal streak oblique inward, diffused to below discocellular stigma anteriorly; fringe pale brownish yellow, basal line orange white; R 3 close to R 4+5 at base, R 4 and R 5 stalked for about half the length of R 5, R 5 to apex, M 2 and M 3 subparallel, CuA 1 and CuA 2 short-stalked. Hindwing and fringe grey; fringe with orange white basal line; M 3 and CuA 1 coincident.

MALE GENITALIA ( Fig. 12D ). Uncus broadly V-shaped; caudal lobe digitiform, rounded and with sparse setae apically. Gnathos with lateral arms broad; median process wide at base, narrowed to basal ⅔, distal ⅓ slender to pointed apex. Valva broad basally, narrowed before cucullus; cucullus about half length of valva, elongate triangular, narrowed slightly from base to subacute apex, straight on costal margin, setose on ventral half, with several bullet-shaped setae ventrally near base; sacculus relatively wide in basal half, slender in distal half, reaching cucullus. Vinculum broad; saccus nearly semiovate. Juxta shield-shaped, with small notch at middle on posterior margin, with small projection at middle on anterior margin; posterior lobe narrow taenioid, extending outward. Aedeagus shorter than valva, curved, broad in basal 2/5, narrowed to basal 3/5, then tubular, with two dorsal denticles, with dense granules in vesica; cornuti consisting of cluster of spines at basal ⅓ and two sclerites, each with one tooth.

SEVENTH ABDOMINAL STERNITE ( Fig. 16G ). Anterolateral rib thin, forked in basal ⅓, curved, not reaching posterior margin of sixth abdominal sternite; posterolateral lobe weakly sclerotized, elongate triangular, rough on outer margin.

FEMALE GENITALIA ( Fig. 19F ). Eighth abdominal sternite arched on posterior margin. Apophyses posteriores slightly shorter than twice as long as apophyses anteriores. Antrum inverted trapezoidal, length about 1.5 times width, spiculose. Ductus bursae relatively narrow, slightly longer than corpus bursae; ductus seminalis almost as wide as ductus bursae, arising from posterior ¼ of ductus bursae. Corpus bursae elliptical; signum at posterior ¼, small, rolled, densely denticulate.

Distribution

China (Guangxi, Guizhou, Hunan).

Figures

Fig. 3. Adults of species of Lecithocera Herrich-Schäffer, 1853 (NKU), dorsal view. A. L. haviensis Park, 2016, female. B. L. laticuculla sp. nov., holotype, male. C. L. ligulacea sp. nov., holotype, male. D. L. margirecta sp. nov., paratype, male. E. L. medogensis sp. nov., paratype, male. F. L. neosticta Meyrick, 1918, 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. 12. Male genitalia of species of Lecithocera Herrich-Schäffer, 1853 (NKU). A. L. haviensis Park, 2016, slide no. YS19710.B. L. laticuculla sp. nov., paratype, slide no. YS19684. C. L. ligulacea sp. nov., paratype, slide no. LSR13453. D. L. margirecta sp. nov., paratype, slide no. YS19483. E. L. medogensis sp. nov., holotype, slide no. YS19166. F. L. neosticta Meyrick, 1918, slide no. LSR13344. 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.