1899.1 r.ROTE — SPECIALTZATIOXS OF LEPIDOPTEROUS WIXG. 2l) 



(4th Group.) 



Gen. Fiipi/io\^\m-\(i, 175S. 



Type : P. machaon. 



Vein iiij arises out of radius more or less exactly opposite to the 



point of junction with discal cross-vein. Cells subequal. Vein 



iiii of primaries free to costa. Internal vein of liind wings inwardly 



curved, attaining the margin just before the short excision at anal 



angle. Cubital cross-vein joins with vein vii. 



Except podalirins, the types of the genera arranged under this 

 rubric agree in main features, while differing in small details which 

 it is optional to consider as of generic value. In ijiachaoji the 

 humeral cell of hind wings is small and narrow. The praecostal 

 spur has a lateral extension. There is a moderate, narrow tail, not 

 spatulate. 



(5th Group.) 

 Gen. Trogonoptcra Ripp., 1890. 

 Type : T. brookeana. 

 Vein iiig arises just before the point of junction of cross-vein with 

 radius. Cubital cross-vein not attaining vein vii. Fore wings 

 long and narrow, pointed, entire. Hind wings reduced, rounded, 

 tailless. Internal margin full, the vein straight, continuous. From 

 the characters of the radius this genus is nearer to Papilio than to 

 Ornithoptera. It is remarkable how persistent the neurational 

 features are in the group of Papilio, and especially that vein iiij is 

 so immovable in its position nearly exactly opposite the cross-vein. 

 It must be therefore considered an important feature that this vein 

 arises much beyond the cross-vein in Leptocirais, and before it in 

 Ornithoptera. In Trogonoptera brookeana it has not quite attained 

 the Papilionid position, but* it has decidedly abandoned that of 

 Ornithoptera. The structure of the hind wings resembles that of 

 the latter genus. 



(6th Group.) 



Gen. Ornithoptera Boisduval, 1832. 



Type : O. priamus. 



Vein iiij arises out of radius above cell and well before the point 



of junction of cross-vein. Discal cells subequal. Vein iii^ free to 



costa. Internal vein of hind wings reaching anal angle; no anal 



excision. 



