Periacma rectignatha Wang et Li, 2006

Wang, Shuxia & Xu, Zhixin, 2024, Taxonomy of the genus Periacma Meyrick (Lepidoptera: Autostichidae) from China, with a checklist of the world species, Zootaxa 5399 (2), pp. 101-129 : 116

Periacma rectignatha Wang et Li, 2006

( Figs 15 , 43 )

Periacma rectignatha Wang et Li, 2006: 2392 . TL: China (Xizang). TD: NKU.

Material examined. CHINA, Xizang: Holotype ♂, Medog (29°139′N, 95°189′N), 14.VIII.2003, leg. XP Wang & HJ Xue, slide No. W03093 .

Additional material. Xizang: 1♂1♀, Motuo, Bingzhongluo Town , 2076 m, 28.VII.2018, leg. MJ Qi, slide Nos. ZXJ19198 ♂, ZXJ18064 ♀ ; 1♀, Motuo , Motuo County, 2076 m, 6.VIII.2018, leg. MJ Qi, slide No. ZXJ18026 .

Description. Adult ( Fig. 15 ). Wingspan 10.0 ‒ 13.5 mm in female. Labial palpus in female yellow, second segment with black ring at apex. Other characteristics same as in male.

Female genitalia ( Fig. 43 ). Papilla anale sub-triangular, with long setae laterally. Apophysis anterioris about 2/5 length of apophysis posterioris. Eighth sternal plate spinulate, slightly concave at middle and with long setae on posterior margin. Ductus bursae extremely elongate, narrow, membranous except weakly sclerotized posteriorly. Corpus bursae not distinctly separated from ductus bursae, membranous; signum absent.

Distribution. China (Xizang).

Note. The female is described for the first time.

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Figures

FIGURES 10‒18. Adults of Periacma spp. 10. P. platygnatha sp. nov., holotype; 11. P. ludingensis sp. nov., holotype; 12. P. mediacantha sp. nov., holotype; 13. P. nakhonnayokensis; 14. P. nepalensis; 15. P. rectignatha; 16. P. securiformis sp. nov., holotype; 17. P. solitaridens sp. nov., holotype; 18. P. subaequalis sp. nov., holotype. Scales = 2.0 mm.

FIGURES 39‒44. Female genitalia of Periacma spp. 39. P. lianzhouensis, comb. nov., slide No. HS14110; 40. P. platygnatha sp. nov., paratype, slide No. XZX20689; 41. P. ludingensis sp. nov., paratype, slide No. XZX20614; 42. P. nepalensis, slide No. XZX20770; 43. P. Rectignatha, slide No. ZXJ18064; 44. P. subaequalis sp. nov., paratype, slide No. XZX20625. Scales = 0.5 mm.