Genus Diduga Moore [1887]

Diduga Moore, [1887], Lepid. Ceylon 3 (4): 535. TS: Diduga costata Moore, [1887] . TL: Sri Lanka (Dickoya).

Androstigma Hampson, 1893, Ill. typical Spec. Lep. Het. Colln Br. Mus. 9: 13, 82. TS: Diduga albicosta Hampson, 1891 . TL: India (Nilgiri plateau).

The genus Diduga is characterized by the ground color of the forewings being pale brown, with dark fascia and stigmata; or dark brown ground color, with white or deep yellow margins along the costa and distally; in veins of forewing, only R4 and R5 are stalked for 1/2 length of R4; hindwing of males with androconial tufts or absent; in veins of hindwing, Rs and M1 are stalked for 1/2 length of M1, and M2 is lost; in the male genitalia, the structure of valvae diverse, with several distinct processes, sometimes with bilateral asymmetry; in the female genitalia, ductus and corpus bursae are diverse in length (Holloway 2001).

Distribution. India (Kirti & Singh 2015; Singh et al. 2021), Sri Lanka, S. Myanmar (Holloway 2001), China (Fang 2000; Bayarsaikhan et al. 2020b; Zhao & Han 2020), Vietnam (Dubatolov & Bucsek 2016; Bayarsaikhan & Bae 2019), Laos (Bucsek 2020), Thailand (Černý & Pinratana 2009; Bayarsaikhan et al. 2020a), Cambodia (Bayarsaikhan et al. 2018), Peninsular Malaysia (Bucsek 2012; 2014), The Philippines, Indonesia (Sumatra, Java, Bali, Sumbawa, Borneo, Sulawesi) and New Guinea (Holloway 2001; Zhao & Han 2020), Japan (Kishida 2011; Bae et al. 2019).