172 THE INSECT WORLD. 



Papilio, to which belong the Swallow-tailed Butterfly (Papilio machaon], 

 Papilio podalirius, &c., and Parnassius, of which we will notice Par- 

 nassius Apollo, and Parnassius Mnemosyne. 



Fig. 139. Swallow-tailed Butterfly (Pajilio machaon). 



The swallow-tailed butterfly is found plentifully in the fens of 

 Cambridgeshire, and Norfolk and Suffolk, and very commonly in the 



Fig. 140. Larva and Chrysalis of Papilio machaon. 



environs of Paris. It is seen from the beginning of May till towards 

 the middle of June ; then from the end of July till September. It 

 frequents gardens, woods, and, above all, fields of lucerne. It is 

 easily taken when settled, particularly at sunset. 



