Diduga albicosta Hampson, 1891

(Figs 2a, 2b, 9, 16)

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. 1 ♀, Thailand, Kanchanaburi, Erawan, 19.VIII.1981 (H. Kuroko, S. Moriuti, Y. Arita & Y. Yoshiyasu), Gen. Slide No. OPU˗036(INU˗10273) Thailand (Coll. OPU) . 1 ♀, SE Thailand, Chantaburi Prov., 265m, Bar Ta Moon, Soi Dao Dist. (N13˚3′40″, E102˚14′45″), 21.XI.2005 (leg. K. Černý), Gen. Slide No. INU˗10370 Thailand ; 1 ♀,SW Thailand, Nakhon Si Tammarat, Khao Luang region, Nopphitamenv., 70m (N8˚44.043′, E99˚41.450′), 6.XII.2007 (leg. K. Černý), Gen. Slide No. INU˗10368 Thailand ; 1 ♀, C Thailand, Nakhon Ratcha- sima, 490m (N14˚22.555′, E101˚51.890′), 29.IX.2008 (leg. K. Černý), Gen. Slide No. INU˗10367 Thailand ; 1 ♂, C Thailand, Nakhon Ratchasima, 600m (N14˚27.55′, E101˚59.55′), 28.X.2010 (leg. K. Černý), Gen. Slide No. INU˗10369 Thailand (Coll. CKC).

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

Remarks. This species was reported from Thailand (Phetchabun, Nakhon Nayok, Chanthaburi, Phang Nga, Trat, Ranong and Surat Thani Provinces) by Černý & Pinratana (2009: 12, pl. 1: 16). In this study, we report for Kanchanaburi, Nakhon Si Tammarat and Nakhon Ratchasima Provinces of Thailand for the first time.