A taxonomic revision of Tridrepana Swinhoe, 1895 in China, with descriptions of three new species (Lepidoptera, Drepanidae) Author Song, Wenhui Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101 China & Graduate University of Chinese Academy of Sciences, Beijing 100049 China. E-mail: songwh @ ioz. ac. cn Author Xue, Dayong Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101 Author Han, Hongxiang Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101 hanhx@ioz.ac.cn text Zootaxa 2011 2011-09-12 3021 39 62 journal article 1175-5326 Tridrepana marginata Watson, 1957 Figs 26–27, 132 Tridrepana marginata Watson, 1957 , Bull. Br. Mus. nat. Hist. (Ent.), 4: 490, figs 140–144, pl.3: 11. Holotype ♂ , China : Yunnan : Lijiang. (ZFMK) Diagnosis. This species has an unusual forewing shape: the terminal half of the costa is strongly bowed inwards, the apex is not strongly falcate but the outer margin below it is deeply concave and then distinctly arched. These features are to some extent resemble those of T. thermopasta , but are stronger. On the forewing, there is an orange shadow extending from the apex to outer one third of the inner margin, and there are two white patches ringed by brown lines on the base of M 3 and CuA 1 . This species is close to T. rubromarginata in the male genitalia, but differs from it by the small and triangular socii, which are digitiform and large in T. rubromarginata . Material examined. CHINA , Yunnan : Li-kiang , 13.IX.1934 , coll. H. Höne , 1♂ ( Holotype ); Li-kiang, 21.VI.1935 , coll. H. Höne , 1♀ ( Allotype ) ( ZFMK ) . Yunnan : Mangshi , 14. IV.1980 , coll. Wang Linyao , 1♀ ( IZCAS ) . Distribution. China ( Yunnan ).