154 THE COMMONER BUTTERFLIES. 



hatch in from five to nine days. The caterpillars feed on 

 any Umbelliferous plants, and seem to be found on carrot 

 and parsley as often as on anything else; they eat vora- 

 ciously and live fully exposed, and do not, like most of 

 our Swallow-tail caterpillars, devour their cast skins after 

 moulting. The chrysalis state varies in the summer from 

 nine to eighteen days. 



A second species of PapiUo, P. hrevicaudit, remarkable for its short 

 tails, lias been found in Newfoundland and along the sliores of the 

 Gulf of St. Lawrence. 



