NESTOR IDES. 295 



[lx. c] Tamer a^ Moore. The type of this genus, T. castor 

 (Westwood), is a North Indian species remarkable for the dis- 

 similarity of the sexes. It measures about 2t% inches across the 

 wings, which are black, with the incisions spotted with white. 

 The hind-wings are dentated, but not tailed, and in the male, 

 are ornamented with a large quadrifld creamy-white spot 

 towards the tip. The female is brown, with sub-marginal 

 white spots. The fore-wings have a rather large white spot at 

 the end of the cell, and are dusted with grey on the lower half 

 of the disc. The hind-wings are strongly dusted with greenish- 

 grey in the cell, and between the nervures, except towards the 

 hind-margin. 



[lx. e.] Nestorides^ Hiibner. This genus includes a num- 

 ber of very large and handsome species which are confined to 

 the Austro-Malayan Region. The type, N. gambrisius (Cram,), 

 is found in Amboina and Ceram. It is a fine Butterfly, 

 measuring six inches in expanse. The male is black, with 

 yellow incisions, and three or four yellow spots towards the 

 tip of the fore-wings ; beyond these, the wing is dusted with 

 yellow. The hind-wings are strongly dentated, with a broad 

 yellow band over the end of the cell, and coppery dusting 

 beyond. The female is black ; on the fore-wings, the end of 

 the cell, and the spaces between the nervures on the disc are 

 white, shading into buff; the hind-wings have a rather narrow 

 tawny band across the end of the cell, and are dusted with 

 blue beyond. 



The only species of this genus which is really common in 

 collections is N. cegeus (Donovan), from Australia. It 

 measures upwards of four inches across the wings, which are 

 broad, but the fore-wings are not produced, the hind-margin 

 being only slightly oblique ; the hind-wings are ample, strongly 

 dentated, but not tailed. The male is blick, with an oblicpic 

 row of spots across the tip of the fore-wings, and the hind 



