Cyana costifimbria (Walker, 1862)

Bayarsaikhan, Ulziijargal & Bae, Yang-Seop, 2016, A review of the genus Cyana Walker, 1854 (Lepidoptera, Erebidae, Arctiinae) from Cambodia, with description of new species, Zootaxa 4114 (4), pp. 447-463 : 451

Cyana costifimbria (Walker, 1862)

(Pl. 1: 3a, 3b; 3: 3; 5: 3)

Bizone costifimbria Walker, 1862 , J. Proc. Linn. Soc. Zool. 6: 121. TL: Borneo ( Sarawak).

Chionaema costifimbria: Hampson, 1900 , Cat. Lep. Phal. Br. Mus. 2: 307, fig. 223; Draudt, 1914, 10: 170.

Chionaema rhadota Swinhoe, 1907 , Ann. Mag. Nat. Hist. (7), 20 (115): 76. TL: Indonesia (Nias Is., Sitoli).

Cionaema rhadota borneensis Talbot, 1926, Sarawak Mus. J. 3 (2): 135. TL: Kenye (Mt. Poi).

Cyana pectinata Roepke, 1946 , Tijd. Ent. 87: 31. TL: Java (Perbawati).

Cyana costifimbria: Fang, 1992 , Sinozoologia 9: 258; Fang, 2000, 19: 163, pl. 4: 17; Černy & Pinratana, 2009, 6: 47, pl. 9: 95; Bucsek, 2012: 104, pl. 18: 259.

Doliche costifimbria: Černy, 1993 , Nachr. Entomol. Verein. Apollo, Suppl. 12: 47, figs. 12a, b, 45, 74, 98.

Diagnosis. Wingspan ♂ 28–30 mm, ♀ 31–35 mm. This species shows extreme sexual dimorphism. C. costifimbria differs from congeners by having the male forewing with transverse broad orange bands, disrupted by a long and conspicuous fringe of scales extending back from costa; forewing of females with mostly straight postmedial dark edge angled obtusely towards apex at costal end; antemedial dark edge meeting dorsum at acute angle; in male genitalia, valvae bean-shaped, with one small spur on center of each valva; saccular process tapered, and curved to acute apex, almost same length with valvae; vesica with scobination and two groups of longer spines; in female genitalia, corpus bursae globular, with large irregular signum near cervix of bursae, and one long line-shaped signum at center of bursae.

Material examined. 1♂, 4♀, Cambodia, Cardamom (N11˚58′47″, E103˚22′22″), 29.VI-2011 (Y.S. Bae et al.), Gen. Slide No. INU-1065; 1♂, 2♀, Cambodia, Samkos (N12˚12′39″, E102˚53′55″), 18–20.II.2012 (Y.S. Bae et al.); 1♂, 1♀, Cambodia, Samkos (N12˚12′25.9″, E102˚52′25.2″), 17. II.2013 (Y.S. Bae et al.), Gen. Slide No. INU- 1064A; 1♂, 7♀, Cambodia, Samkos (N12˚12′40″, E102˚52′13″), 23–24.XII.2014 (Y.S. Bae et al.); 2♂, Cambodia, Samkos (N12˚12′48.1″, E102˚54′12.5″), 6.II.2015 (Y.S. Bae et al.); 2♂, Cambodia, Osam (N12˚01′31″, E103˚11′04″), 21.II.2012 (Y.S. Bae et al.), Gen. Slide No. INU-1064; 1♂, Cambodia, Koh Kong (N11˚35′04″, E103˚13′21″), 22.II.2012 (Y.S. Bae et al.); 1♂, Cambodia, Koh Kong (N11˚41′44.9″, E103˚06′51.8″), 25.XII.2014 (Y.S. Bae et al.); 1♂, 3♀, Cambodia, Bokor (N10˚36′52″, E104˚5′44″), 12–15.VII.2012 (Y.S. Bae et al.); 1♀, Cambodia, Bokor (N10˚37′45.6″, E104˚05′18″), 14.I.2013 (Y.S. Bae et al.); 2♂, Cambodia, Bokor (N10˚39′30.73″, E104˚03′3.74″), 4.II.2014 (Y.S. Bae et al.); 1♂, 3♀, Cambodia, Seima (N12˚14′56.80″, E107˚03′17.10″), 15– 16.VIII.2013 (Y.S. Bae et al.).

Distribution. Cambodia (Bokor, Cardamom, Koh Kong, Osam, Samkos, Seima), Philippines, Indonesia, Borneo, Thailand, peninsular Malaysia, Vietnam, Laos, China.

Remarks. This species was reported from Cambodia by Bae et al. (2012) and Bucsek (2012).