Diduga amoenusa Bucsek, 2012

(Figs. 6, 13)

Diduga amoenusa Bucsek, 2012, Erebidae, Arctiinae ( Lithosiinae, Arctiini) of Malay Peninsula˗ Malaysia: 25, pl. 4: 53. TL: peninsular Malaysia (Cameron Highlands, Tanah Rata env.).

Diagnosis. Length of forewing 5 mm in male. D. amoenusa differs from other Cambodian species by having the hind border of white yellowish markings in forewing not dentate; hindwing pale brown (Fig. 6); in male genitalia, tegumen broadly arch˗shaped, membranous, with heavily setose; valva tapering, with heavily setose; aedeagus weakly scclerotized and vesica with a bundle of short spines, and one irregular, sclerotized cornutus (Fig. 13).

Material examined. 1 ♂, Cambodia, Samkos, Koh Kong Prov. (N12˚12′47.8″, E102˚54′23.8″), 23.XII.2014 (YS Bae, YD Ju, MJ Qi, U Bayarsaikhan, BS Park, SM Na, JW Kim, DJ Lee), Gen. Slide No. INU˗1411C .

Distribution. Cambodia (Koh Kong province), peninsular Malaysia.

Remarks. This species was reported from Cambodia by Bae et al. (2016).