Cyana flavalba (Rothschild, 1912)

(Pl. 2: 9a, 9b; 3: 9; 5: 9)

Chionaema flavalba Rothschild, 1912, Novit. Zool. 19 (2): 246; Hampson, 1914, 1: 634, pl. 33: 30. TL: peninsular Malaysia (Penang).

Cyana flavalba: Černy & Pinratana, 2009, Moths of Thailand 6: 46, pl. 8: 92; Bucsek, 2012: 106, pl. 18: 262.

Diagnosis. Wingspan ♂ 16 mm, ♀ 23–24 mm. C. flavalba differs from congeners by having pure white wings in both sexes; forewing with two dark discocellular spots; four slender yellow lines, without dark edged; in male genitalia, uncus short; valvae tapered, rounded apex; saccular process slender, with short apical spine, almost same length with valvae; aedeagus short, stout, and vesica with two group of longer spines and scobination; in female genitalia, corpus bursae globular, membranous, without signum.

Material examined. 1♀, Cambodia, Bokor (N10˚36′52″, E104˚05′44″), 13.VII.2012 (Y.S. Bae et al.), Gen. Slide No. INU-1096; 1♀, Cambodia, Bokor (N10˚39′30.73″, E104˚03′3.74″), 4.II.2014 (Y.S. Bae et al.); 1♂, Cambodia, Kep (N10˚29′25″, E104˚18′13″), 17.VII.2012 (Y.S. Bae et al.), Gen. Slide No. INU-1003.

Distribution. Cambodia (Bokor, Kep), Laos, Thailand, peninsular Malaysia, Singapore, China.

Remarks. This species was reported from Cambodia by Bucsek (2012).