284 Mr. G. F. Hampson's 
yellow spot on costa, its inner edge slightly angled outwards at 
/f'^ Scaptesylix hemichryseis, $ , y. 
lower end of cell. Hind wing with the outer area black, broad at 
costa, tapering to anal angle. 
Kab. Donaut Range, Tenasserim (De Niceville). 
Exp. 20 mm. Type in B. M. 
CHALCOSIINJS. 
Isharta cyanescens, n. sp. 
$ . Head and thorax metallic-blue, slightly marked with white ; 
abdomen ringed with white. Fore wing with the basal half grey, 
with metallic-blue streaks on the veins and black streaks in and 
below cell ; the outer half black with two whitish spots in cell, five 
beyond the cell followed by a spot above vein 6 and a submarginal 
series. Hindwing yellowish-white, the cell and interspace below 
slightly suffused with blue, the apical area black with some whitish 
spots on its inner edge. Underside of f orewing with the veins and 
margin suffused with metallic-blue, the white spots prominent. 
Hindwing chrome-yellow, the costa white and black, the apical 
area black suffused with metallic-blue and with whitish spots on 
its inner edge. 
Allied to 1. glauca, Wlk., from which it differs mainly 
in the extent of yellow on underside of hindwing. 
Hah. Tenasserim (De Niceville) . Exp. 62 mm. Type 
inB. M. 
Family NEOCASTNIID^, nov. 
Differs from the Castniidse in the proboscis being 
absent. Forewing with vein Ic absent ; the cell open. 
Hindwing with vein Ic absent ; the cell open. 
This family will also include the genus Tascina, 
Westw., and its range as at present known is Tenasserim, 
Singapore, Borneo, Palawan, whilst the range of the 
