Tridrepana rubromarginata ( Leech, 1898 )

Song, Wenhui, Xue, Dayong & Han, Hongxiang, 2011, A taxonomic revision of Tridrepana Swinhoe, 1895 in China, with descriptions of three new species (Lepidoptera, Drepanidae), Zootaxa 3021, pp. 39-62 : 46

Tridrepana rubromarginata ( Leech, 1898)

Drepana rubromarginata Leech, 1898 , Trans. ent. Soc. Lond., 1898: 365. Holotype ♂, China: Sichuan, Pu-tsu-Fong. (BMNH) Iridrepana rubromarginata: Warren, 1922 , in Seitz, Macrolepid. World, 10: 465, pl.49: c.

Tridrepana rubromarginata: Watson, 1957 , Bull. Br. Mus. nat. Hist. (Ent.), 4: 484, figs 131–133.

Diagnosis. This species is close to T. finita on the wing pattern and the male genitalia features (see diagnosis under that species). T. rubromarginata indica is distinguishable from the nominate subspecies by larger size, and some differences in the wing pattern and the male genitalia. In T. rubromarginata indica , the ground colour of the wings and the shadow on the forewing from apex to the middle of the inner margin is paler than in the nominate subspecies. The posterior margins of the uncus lobes are truncate, and their apical angles are less swollen than in the nominate subspecies.

Distribution. China, India, Bhutan, Nepal.