Description of eight new species of the genus Irepacma Moriuti, Saito & Lewvanich (Lepidoptera: Autostichidae) from China Author Wang, Shuxia 0000-0002-9316-6661 College of Life Sciences, Nankai University, Tianjin 300071, China & shxwang @ nankai. edu. cn; https: // orcid. org / 0000 - 0002 - 9316 - 6661 shxwang@nankai.edu.cn Author Xu, Zhixin 0000-0001-6851-8234 College of Life Sciences, Nankai University, Tianjin 300071, China & xuzhixin 8848 @ 126. com; https: // orcid. org / 0000 - 0001 - 6851 - 8234 Author Li, Suran 0000-0002-9316-6661 College of Life Sciences, Nankai University, Tianjin 300071, China & lisuranyouxiang @ 163. com; https: // orcid. org / 0000 - 0002 - 9316 - 6661 text Zootaxa 2022 2022-12-16 5222 1 37 48 journal article 53743 10.11646/zootaxa.5222.1.2 31cf9402-2d5a-410d-a480-e0baca37fc79 1175-5326 7456331 F1751599-786B-4E1B-85FF-9B4F246A52ED Irepacma flaviptera Wang , sp. nov. ( Figs 4 , 12 ) Type material. CHINA , Zhejiang : Holotype ♁, Qianjiangyuan ( 30.39°N , 119.49°E ), Mt. Tianmu , 866 m , 8.VII.2014 , leg. AH Yin et al ., slide No. LiSR16263. Paratypes : 1♁, same data as holotype, slide No. XZX20376; Guizhou : 1♁, Xiannvtang , Mt. Leigong , 1553 m , 30.VII.2018 , leg. ML Zheng et al ., slide No. XZX20508 . Diagnosis. The new species can be distinguished in the male genitalia by the costa with a short subquadrate process at the base, the sacculus distinctly narrowed at distal 1/3, the ventral margin of the valva roundly produced at basal 1/3, and the aedeagus with denticles and long thorns distally. Description. Adult ( Fig. 4 ). Wingspan 14.0 – 14.5 mm . Head yellow. Labial palpus and antenna yellow. Thorax. Mesonotum and tegula yellow, with scattered yellowish brown scales at apex. Forewing yellow, covered with brown scales; discal, discocellular and plical stigmata dark brown; terminal dots brown; fringe yellow. Hindwing and fringe gray, tinged with yellow. Legs yellow, with brown scales. Male genitalia ( Fig. 12 ). Uncus triangular, with setae medially. Gnathos circular, narrowly banded. Valva narrowed near base, subparallel medially, slightly narrowed from distal 1/4 to obtusely rounded apex, densely setose; ventral margin obtusely produced at basal 1/3; costa with subquadrate process at base, concave semicircularly beyond this process, widened at basal 2/5, then narrowed to before dorso-apex of valva. Sacculus about 2/5 length of valva, narrowed from wide base to basal 2/3, then distinctly narrowed, distal 1/3 triangular, narrowed to apex, with short setae. Saccus subtriangular, apex rounded. Aedeagus slightly shorter than valva, basal 1/4 slenderly clubbed, distal 3/4 wider, bifurcated from its half, forming two branches: one branch slender, clubbed, obtusely rounded at apex; the other branch gradually narrowed to its middle, then widened to apex, with teeth and spines distally. Female unknown. Distribution. China ( Guizhou , Zhejiang ). Etymology. The specific epithet is derived from the Latin flavus and - pterus , referring to the color of the forewing.