Tridrepana sadana (Moore, 1865) Figs 9–10, 62, 86, 108–109 Drepana sadana Moore, 1865, Proc. zool. Soc. Lond., 1865: 817. Holotype ♂, India: Darjeeling. (Collection of A. E. Russel. Lost.) Platypteryx sadana: Kirby, 1892, Syn. Cat. Lepid. Het.: 733. Tridrepana sadana: Swinhoe, 1895, Trans. ent. Soc. Lond., 1895: 4. Iridrepana sadana: Warren, 1922, in Seitz, Macrolepid. World, 10: 466, pl.49: c. Tridrepana adelpha Swinhoe sensu Chu & Wang, 1988, Acta Entom. Sinica, 31 (2): 204. (part) Diagnosis. This species is close to T. finita on wing pattern but much bigger. It differs from that species in that the apex of the forewing is more falcate; the postmedial line is double below CuA 1; a pale gray terminal line is present; the patches between M 3 and CuA 2, especially their dark center spots, are much smaller. In the male genitalia, two lobes of the uncus are nearly triangular, apart from each other, with the posterior margins oblique. But in T. finita, the lobes of the uncus are nearly quadrate and close to each other, with the posterior margins truncate. Material examined. CHINA, Hubei: Xingshan, Longmengou, 1300 m, 8.IX.1994, coll. Song Shimei, 1♂ (IZCAS). Tibet: Zham, 2200 m, 6. VI.1981, coll. Hu Shengchang, 1♂; Zham, 2200–2400 m, 28. V, 3.VII.1975, coll. Huang Fusheng & Wang Ziqing, 2♀; Nyalam, 2250 m, 17. V.1974, coll. Zhang Xuezhong, 2♂ (IZCAS). Distribution. China (Hubei, Tibet), India, Nepal, Myanmar. Remarks. Chu & Wang (1988, 1991) recorded T. adelpha Swinhoe from Tibet (Zham, Nyalam) and Yunnan (Lijiang). We have reexamined the materials labelled as “ adelpha ”, and have concluded that the specimens from Tibet (Zham, Nyalam) are T. sadana (Moore), and the specimen from Yunnan (Lijiang) is T. finita Watson. So T. adelpha Swinhoe is not at present known to occur in China.

Published as part of Song, Wenhui, Xue, Dayong & Han, Hongxiang, 2011, A taxonomic revision of Tridrepana Swinhoe, 1895 in China, with descriptions of three new species (Lepidoptera, Drepanidae), pp. 39-62 in Zootaxa 3021 on pages 44-45