THE LONG-BEAKS 



orange patch just beyond cell R + M. Expanse of wings one 

 and three-fourths inches. 



Caterpillar. — Length about one inch; the head is small; 

 the last two thoracic segments are enlarged and rise in a 

 hump above the head ; the last segment of the body slopes 

 down abruptly at the end. The color is dark velvety green 

 with a yellow stripe down the middle of the back and along 

 each side. The enlarged middle segment of the thorax bears 

 two dull black tubercles ringed about with yellow at the 

 base. 



Food-plants. — Hackberry, and in the West, where hack- 

 berry does not occur, it feeds upon wolfberry. 



The snout butterfly has front wings that look 

 as if their tips had been snipped off with curved 

 scissors ; it is not likely to be mistaken for any 

 other butterfly even though it is copper-colored 

 with white spots, for its palpi project at least a 

 quarter of an inch straight out in front of the 

 head ; this peculiarity has given the species the 

 unpoetical cognomen, " the snout butterfly." The 

 under sides of the hind wings show a beautiful 

 vague pattern of sheeny, olive brown, and ashes 

 of roses. One of the specially interesting things 

 about the species is that the females are hexa- 

 pods while the males are quadrupeds. Just why 

 the females need six feet when the males need 

 only four is to us a mystery. 



The snout butterfly is most erratic in its occur- 

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