246 LEPIDOPTEBA INDICA. 



Habitat. — Nikobar Islands. 



Distribution. — Felder's type, female, whicli we figure through the kindness of the 

 Hon. "Walter Eothschild, came from Kondul ; Doherty captured a male in Ikuya, Little 

 Nikol^ar. 



CASTALIUS ELNA. 

 Plate 632, figs. 2, (J , 2a, ? , 2b, ^ (Wet-season Brood), 2c, ^ , 2d, ? , 2e, $ (Dry-season Brood). 



Lycsena elna, Hewitson, Ex. Butt. v. (Lycsena), pi. 1, fig. 8, ? (1876). 



Castalms elna, Moore, Proc. Zool. Soc. 1877, p. 587. Wood-Mason and de Niceville, Journ. As. Soc. 

 Bengal, 1881, p. 248. Distant, Rliop. Malayana, p. 217, pi. 20, fig. 4 (1884). de Niceville, 

 Butt, of India, iii. p. 201 (1890). Elwes, Proc. Zool. Soc. 1892, p. 628. Swinhoe, Trans. Ent. 

 Soc. 1893, p. 299. Bingham, Fauna of Brit. India, Butt. ii. p. 430 (wood-cut, p. 429) (1907). 



Wet-season Brood (Figs. 2, $, 2a, $, 2b, $). 



Imago.— Male. Upperside black ; a broad, oblique, white band across both wings. 

 Furewing with this band slightly produced both outwards and inwards at its commence- 

 ment in the upper disc and broadens hindward. Hindwing with a continuation of 

 this band of fairly equal breadth. Underside white. Forewing with a broad black 

 band from the lower base to the middle third of the wing, where it is sharply angled on 

 to the costa ; a large black spot on the costa between it and the apex ; a large black 

 spot below it near the hinder angle, a marginal thin band with a spot inside its middle 

 and sometimes attached to it, but this band is inconstant, and is often broken and 

 irregular, and sometimes almost obliterated. liindivlng with a continuation at its base 

 of the basal band of the forewing, a discal band of what appears to be a number of 

 large spots joined together, a marginal narrow band of triangular spots ; tails black, 

 with white tips. Antennae black, speckled with white ; head and body black above ; 

 palpi and body beneath with a medial white line ; sides of abdomen barred with 

 white. 



Female, like the male above and below. 



Expanse of wings, $ $ 1-^ inches. 



Dry-season Brood (Figs. 2c, $, 2d, $, 2e, $). 



Male and female only differ on the upperside in the breadth of the white, oblique 

 band, which in this form is very much broader throughout, on the underside the costal 

 and outer marginal spaces are suffused with pale chocolate colour, and the discal and 

 outer marginal bands of the hindwing are almost obliterated. 



Expanse of wings, $ % l^o inches. 



Habitat. — Sikkim, Bhutan, Assam, Burma, South Andamaus, extending to the 

 Malayan sub-region. 



