244 LEPIDOPTEBA INDICA. 



Casialius roxus, Butler, Traus. Linn. Soc. Zool. 1877, p. 547. Moore, Proo. Zool. Soc. 1878, p. 833. 

 Wood-Mason and de Niceville, Journ. As. Soc. Bengal, 1881, p. 248. Distant, Rhop. Malayana, 

 p. 216, pi. 22, fig. 24, $ (1884). Elwes and de Niceville, Journ. As. Soc. Bengal, 1886, p. 428. 

 de Niceville, Butt, of India, iii. p. 199 (1890). Manders, Trans. Ent. Soc. 1890, p. 529. Elwes, 

 Proo. Zool. Soc. 1892, p. 628. Bingham, Fauna of Brit. India, Butt. ii. p. 428 (1907). 



Imago. — Male. Upperside black ; crossed by an oblique, medial white band 

 extending from just above vein 5 of the forewing to the abdominal margin of the 

 hindwing. Forewing. The band has a short production outwards, its end being nearly 

 square. Hindwing. Band broader and fairly uniform in width throughout. Under- 

 side white ; all the markings black ; a very broad sub-basal band across both wings ; 

 a discal narrower band ; in the forewing disjointed below the middle, the lower piece 

 rather broader and a little on the inner side ; on the hindwing this band consists of 

 three rather broad linear markings, more or less joined together, the middle one nearer 

 the margin than the others ; both wings with a sub-terminal series of black lunules 

 and a marginal black line, showing a series of white spots between them. Cilia black, 

 tail long, black, tipped with white. Antennae, head and body black ; the abdomen 

 barred with white at the sides ; palpi, thorax and abdomen white down the middle on 

 the underside. 



Female, like the male, but the white medial band on the upperside is distinctly 

 broader, the inner edge of the terminal black band of the hindwing is irregular, and 

 the black bands on the underside are usually also broader. 



Expanse of wings, $ $ l-^ inches. 



Habitat. — Burma, Andamans, extending in the Malay sub-region as far as the 

 Philippines. 



DistributiOjST. — Manders records it from the Shan States, and Elwes from the 

 Karen Hills ; it is in our collection from the Andamans, Java and Borneo. 



CASTALIUS ROXANA. 



Plate 631, figs. 3, ,^, 3a, ?, 3b, <J . 



Casialius roxana, de Niceville, Journ. Bo. Nat. Hist. Soc. 1897, p. 633. Watson, Journ. Bo. Nat. 



Hist. Soc. 1897, p. 661. 

 Casialius roxus, Bingham (part), Fauna of Brit. India, Butt. ii. p. 428 (1907). 



Imago. — ^Male. Upperside black. Forewing with a broad, medial, white, transverse 

 band, from just above vein 5 to the hinder margin ; at its commencement it is 

 produced outwards above vein 3, in a nearly square form. Hindwing with an oblique 

 continuation of the white band to the abdominal margin, but much broader than it is 

 on the forewing, leaving only a small basal space black, and the outer black border very 

 broad. Underside white. Forewing with the costal line thickly black ; a rather broad 



