FAMILY II 



THE SWALLOW-TAILS 

 Family Papilionidae (Pa-pil-i-on'i-da?) 



These magnificent butterflies are easily recognized by their 

 large size and the tail-like prolongation of the hind wings. 

 The ground color of 

 the wings is black, 

 which is usually 

 marked with yellow, 

 and often with metallic 

 blue or green. 



The swallow-tails 

 agree with the parnas- 

 sians and differ from 

 all other butterflies in 

 the fact that vein M 2 

 of the fore wings ap- 

 pears to be a branch 

 of cubitus, making this 

 vein appear to be four- 

 branched (Fig. 25), 

 and also by the fact 

 that the anal area of 

 the hind wings is more 

 reduced than the anal 

 area of the fore wings, 

 the former containing 

 only a single anal vein, 



Fig. 25, 



-Venation of the wings of a 

 swallow-tail. 



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