1886.] W. Doherty — Additional Notes on Indian Butterflies. 261 



Hill Tracts, varies greatly in different specimens. I suspect that the 

 male will be found to be of the usual dull rufous hue of below, charac- 

 teristic of the group, and will perhaps be difficult to distinguish from 

 some well-known species. 



Subfamily Lyc^nin^. 



15. Castalius manluena, Felder. 



Allied to roxus. d . Black, tip of tails white, and a slender marginal 

 white line on hindwing, broken at the veins. -Both wings with a broad 

 white discal band, extending on the forewing from the hind- margin to 

 above the lower radial, just entering the cell, at the end of which it is 

 strongly indented from above ; prolonged outwardly between the upper 

 medians. On the hindwing it is broad, strongly produced outwardly, 

 acutely indented inwardly. Below, forewing, ground white, base dark with 

 a white longitudinal line close to the costa : a black mass extending obli- 

 quely from the base and the hind margin to the middle of the costa, where 

 it joins a broad black subapical area which extends thence to the middle 

 median branch, there it is connected (slightly) with the broad sub- 

 marginal dark band, and with an outer discal dark area lying between 

 the upper median and the hind-margin. Kindwing with a basal black 

 mass untouched with white, and a discal band, irregular but unbroken, 

 crossing the wing, and a submarginal line of wide, joined black lunules 

 uniting at the apex with the discal band. Expanse 26 millimetres. 



A male taken by me at Ikuya, Little Nicobar. The prehensores aro 

 quite distinct from those of the next species. The species is without 

 metallic markings either above or below. Felder's female, with which 

 this male seems conspecific, is as he remarks distinguished from roxus 

 and allied species by the absence of all whita at the base of the costa 

 of the hindwing below. This also distinguishes it from airavati. The 

 unbroken transverse discal band of the hindwing distinguishes the two 

 Nicobarese species from all others. The female has, according to Felder, 

 white marginal spots on both (?) wings above. 

 16. Castalius airavati, n. sp. 



$ . Allied to ethion. Above, light, shining blue, the outer borders of 

 both wings broadly, and the costa of the forewing narrowly black. A 

 white band crosses both wings. On the forewing its upper part is wide, 

 centering between the upper median and the lower radial branches ; 

 thence to the hind margin it is slender and almost obsolescent ; on the 

 hindwing it is narrow and angular. Below, ground ochreous- white (white 

 in ethion), pure white on the lower part of the forewing. It differs from 

 ethion below in the increased size of all the black markings. The trans- 

 verse discal band across the hindwing, though irregular, is continuous ; 



