Opacoptera callirrhabda (Meyrick, 1936)

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

Opacoptera callirrhabda (Meyrick, 1936)

Figs 3 , 11 , 18

Lecithocera callirrhabda Meyrick, 1936: 158. TL: China (Yunnan). TD: NHMUK.

Opacoptera callirrhabda (Meyrick): Gozmány, 1978: 179.

Material examined.

China: 1♀, 30.vii.2014 , 3♂, 2-3.viii.2014, Yunnan, Dali, Mt. Weibao , 2205 m, KJ Teng et al. leg., slide nos. YS19428 ♂, YS19435 ♀.

Diagnosis.

This species is diagnostic in the male genitalia by the juxta incised at middle in a triangle on the posterior margin (Fig. 11 ). It is similar to O. condensata sp. nov., and the differences between them are stated in the diagnosis of the latter species.

Description.

Wingspan 13.5-15.0 mm (Fig. 3 ).

Female genitalia (Fig. 18 ). Eighth abdominal sternite obtuse on posterior margin. Apophyses posteriores twice length of apophyses anteriores. Antrum cup-shaped, wrinkled, membranous except sclerotized along posterior margin forming a band. Ductus bursae subelliptical, slightly wider than corpus bursae, partly wrinkled anteriorly; ductus seminalis broad basally, slender distally. Corpus bursae elliptical; signa placed medially, consisting of five teeth in a longitudinal row and a small rounded, denticulate plate.

Distribution.

China (Sichuan, Yunnan) ( Gozmány 1978; Wu 1996).

Remarks.

Meyrick (1936) described this species based on five male specimens (one from Shandong, two from Shaanxi and Yunnan, respectively) and placed it in the genus Lecithocera . Clarke (1965) assigned one of the specimens from Yunnan as the lectotype according to the original description. Gozmány (1978) noted that only the two specimens from Yunnan were conspecific. He also hypothesized that they were distinct from Lecithocera , so diagnosed the genus Opacoptera and placed the species therein. Wu (1996) was first to described the female of O. callirrhabda based on specimens with associated males collected at different times and from different localities of Sichuan. According to the description and the drawing given by Wu (1996), the female genitalia of O. callirrhabda has a narrowed ductus bursae and a single signum. However, the female of the species examined in this study from Yunnan is quite different, and we describe it herein.

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.