from Old Calabar and Madagascar. 461 



Copaxa. discre-pansj n. sp. 



d . Bright chrome-yellow, wings with a black spot enclosing 

 a hyaline white centre at the termination of each discoidal cell ; 

 fringe red-brown : primaries sprinkled here and there, parti- 

 cularly at the base, with rusty scales ; a very irregular red- 

 brown stripe across the basal third ; a second, less irregular 

 central stripe, a third almost straight oblique discal stripe 

 from apex to inner margin ; a submarginal series of more or 

 less concave red-brown spots : secondaries crossed in the 

 middle by a rather broad, straight, red-brown stripe, and on 

 the disk by a zigzag line ; a submarginal series of more or 

 less hastate red-brown spots : body sprinkled with rusty 

 scales. Under surface darker ; the stripes, lines, and spots 

 purplish ; the ocelloid spots smaller ; the whole surface of the 

 wings sprinkled more or less densely with rust-brown scales, 

 most thickly upon the outer border and between the stripes 

 of primaries, the stripe nearest to the base being obsolete. 

 Expanse of wings 5 inches 11 lines. 



$ . Olive-brown, sprinkled with yellow scales, most densely 

 between the outer or discal stripe and the submarginal row of 

 spots ; ocelli larger than in the male ; otherwise the characters 

 are the same. Expanse of wings 5 inches 6 lines. 



Old Calabar. 



Ceranchia, n. gen. 



Nearly allied to Satumia, but the antennae broadly and 

 equally pectinated in both sexes, the wings hyaline, the radial 

 vein of primaries emitted in the male (but not in the female) 

 from the fourth subcostal branch, with which it forms a fork 

 starting from an apparently independent footstalk at the 

 superior angle of the discoidal cell. Type C. apolltna. 



Ceranchia apolUna, n, sp. 



"White ; wings hyaline, with pale smoky-brown borders and 

 dusky veins ; an arched postmedian grey stripe ; a black- 

 zoned orange spot at the end of each discoidal cell, those of 

 the primaries in the male very pale ; primaries of the female 

 witli an ill-defined dusky stripe across the cell to inner margin; 

 antennae black ; head, prothorax, and legs tawny. Expanse of 

 wings 4 inches 6-9 lines. 



Betsileo country, Madagascar. 



It was only after examining four or five examples of this 

 species that I was finally persuaded that the structural differ- 

 ence in the veins of the primaries Avas a male character, whilst 



