Diduga albicosta Hampson, 1891

(Figs 3a, 3b, 15, 21)

Diduga albicosta Hampson, 1891, Ill. Typical Spec. Lep. Het. Colln. Br. Mus. 8: 5, 53, pl. 140: 17. TL: India (Nilgiris). Androstigma albicosta: Hampson, 1893, Ill. Typical Spec. Lep. Het. Colln. Br. Mus. 9: 82, pl. 158, f. 25.

Material examined. 2 ♂, 2 ♀, Laos, Champasak Prov., Tad Yeuang Waterfall (N15˚10′50.9″, E106˚08′21.9″ Alt: 9650m), 29.VII.2019 (YS Bae, MJ Qi, DJ Lee, JH Ko, TG Lee, YB Cha, CM Jang), Gen. Slide No. INU–10394L, 10409L .

Distribution. Laos (Bucsek 2020), China (Bayarsaikhan et al. 2020a), India (Kirti & Singh 2015), Sri Lanka (Moore [1887]), Thailand (Černý & Pinratana 2009, Bayarsaikhan et al. 2020b), Cambodia (Bayarsaikhan et al. 2018), Peninsular Malaysia (Bucsek 2012).

Remarks. This species was reported from Khammouane Province by Bucsek (2020: 48, figs 22–23) and from Vientiane Province by Kishida (2020: 127, pl. 57: 27) in Laos. In this study, we report for Champasak Province of Laos for the first time.