264 LLOYD'S NATURAL HISTORY. 



rarely before or after it, the third and fourth nervurcs rising 

 beyond the cell from a longer or shorter stalk. There is no 

 patch of raised scales on the fore-wings of the males, but scent- 

 producing scales are concealed in the fluffy abdominal fold ; 

 colours black and yellow. 



The species of this group are characteristic of the Indo- 

 Malayan Region, though some of them extend to the Moluccas, 

 &c. The type is O. Helena (Linn.), which inhabits the Moluccas 

 and the Papuan Islands. It is a large species, with black fore- 

 wings in the male, and yellow hind-wings, very broadly black 

 at the base, and on the hind-margin. The female is of a 



Ornilhoplera po in pens, larva. 



lighter brown, with a large buff or yellowish spot, divided by 

 the nervures, in the middle of the hind-wings. 



Many species have black or brown fore-wings, more or less 

 rayed with grey along the nervures, especially in the females ; 

 and golden-yellow hind-wings, with a narrow black border, fes- 

 tooned on the inner side ; and, in the females, there is a row of 

 large black spots, sometimes touching the incurves of the bor- 

 der, and sometimes perfectly distinct. Among these is O. 

 pompeus (Cramer), found in Java and Borneo. We have figured 

 the larva and pupa ; the former feeds on Aristolcchia, and is 

 yellowish, with a broad whitish dorsal stripe, dilated to a band 

 on the sixth segment, and with eight rows of fleshy spines; the 



