Opacoptera hybocentra Yu & Wang, 2023

Yu, Shuai & Wang, Shuxia, 2023, Opacoptera Gozmany (Lepidoptera, Lecithoceridae) from China, with descriptions of four new species, ZooKeys 1158, pp. 133-146 : 133

Opacoptera hybocentra Yu & Wang sp. nov.

Figs 7 , 14 , 21

Type material.

Holotype: China: ♂, Yunnan, Baoshan, Nankang (24°49'N, 98°47'E), 2009 m, 20.vii.2015, KJ Teng & X Bai leg., slide No. YS19424. Paratypes: China, Yunnan: 39♂27♀, same data as holotype except dated 16-20.vii.2015, slide Nos. YS19431♂, YS19432♀; 1♂3♀, 10, 17.viii.2014, KJ Teng et al. leg., other same data as holotype; 2♂1♀, Longling County, Mt. Xiaohei, 1974 m, 18-19.vii.2013, SR Liu et al. leg., slide Nos. LSR13199♂, LSR13208♂, LSR13214♀; 1♂, Longling County, Mt. Xiaohei, 1974 m, 30.vii.2015, KJ Teng & X Bai leg.

Diagnosis.

The male genitalia of the new species is similar to that of O. introflexa sp. nov. It can be distinguished by the forewing having CuA1 and CuA2 separate and the horn-shaped ventrobasal process of the cucullus; in O. introflexa sp. nov., the forewing has veins CuA1 and CuA2 stalked and the ventrobasal process of the cucullus is broadly rounded, thumb shaped.

Description.

Wingspan 12.0-13.5 mm (Fig. 7 ). Head dark brown. Antenna with scape yellowish brown, flagellum pale brownish yellow. Labial palpus pale brownish yellow, third palpomere as long as second palpomere. Thorax and tegula dark brown. Forewing dark brown, with two black patches: one at basal 1/4, elliptical, the other at middle, shape ill-defined; fringe yellowish brown; CuA1 and CuA2 separate. Hindwing and fringe pale brownish yellow except yellowish brown around apical area.

Male genitalia (Fig. 14 ). Uncus wide, shallowly concave on posterior margin, obtuse on anterior margin; caudal lobe papillary. Gnathos with basal plate obtuse on posterior margin; median process wide at base, narrowed to distal 1/3 where it curves, distal 1/3 spine-shaped. Valva wide basally, narrowed distinctly to cucullus; cucullus about half length of valva, parallel-sided in basal half, widened slightly to obtuse apex, costal margin shallowly concave except gently produced at base; ventrobasal process horn-shaped, curved, longer than basal width of cucullus; costal bar narrow, slightly expanded dorsad medially; sacculus wide, about 1/4 length of ventral margin of valva. Saccus obtuse on anterior margin. Juxta subquadrate, broadly concave on posterior margin, obtusely produced at middle on anterior margin; posterior lobe large, horn-shaped, nearly as long as juxta; posterolateral lobe short, spiniform, extending posterolaterally. Aedeagus slightly shorter than valva, slightly widened medially, with two dorsal denticles; cornuti consisting of six large, needle-like spines running from basal 1/3 to 2/3.

Female genitalia (Fig. 21 ). Eighth abdominal sternite obtusely rounded on posterior margin. Apophyses posteriores about 1.5 times length of apophyses anteriores. Antrum funnel-shaped, wrinkled, membranous except sclerotized along posterior margin forming a band. Ductus bursae narrowed posteriorly, widened toward corpus bursae; ductus seminalis broad, roundly sac-like and bearing dense spinules basally. Corpus bursae ovate; signa consisting of six small teeth in a longitudinal row and a rounded, densely denticulate plate.

Distribution.

China (Yunnan).

Etymology.

The specific name is derived from the Latin hybocentrus, referring to the curved ventrobasal process of the cucullus.

Figures

Figures 3 - 10. Dorsal habitus of Opacoptera spp. 3 O. callirrhabda (Meyrick, 1936), female, YS 19435 4 O. condensata sp. nov., paratype, female, LSR 13198 5 O. ecblasta Wu, 1996, male, LSR 11240 6 O. flavicana Wu & Liu, 1992, female, LSR 11247 7 O. hybocentra sp. nov., holotype, male, YS 19424 8 O. introflexa sp. nov., paratype, male 9 O. kerastiodes Park, 2021, male, YS 19048 10 O. longissima sp. nov., paratype, male. Scale bars: 2.0 mm.

Figures 11 - 14. Male genitalia of Opacoptera spp. 11 O. callirrhabda (Meyrick, 1936), slide No. YS 19428 12 O. condensata sp. nov., holotype, slide No. LSR 12090 12 a cornuti of O. condensata sp. nov., paratype, slide No. YS 17042 13 O. ecblasta Wu, 1996, slide No. LSR 14013 14 O. hybocentra sp. nov., holotype, slide No. YS 19424. Scale bars: 0.5 mm.

Figures 18 - 22. Female genitalia of Opacoptera spp. 18 O. callirrhabda (Meyrick, 1936), slide No. YS 19435 19 O. condensata sp. nov., paratype, slide No. YS 19434 19 a signa of O. condensata sp. nov., slide No. LSR 11297 19 b signa of O. condensata sp. nov., slide No. YS 17057 20 O. flavicana Wu & Liu, 1992, slide No. LSR 11247 21 O. hybocentra sp. nov., paratype, slide No. YS 19432 22 O. introflexa sp. nov., paratype, slide No. YS 19430. Scale bars: 0.5 mm.