LEPIDOPTERA. 179 



the border, and end in a magnificent eye of a reddish colour, bor- 

 dered with blue. 



The caterpillar of this species is large, smooth, and of a beau- 

 tiful light green, with a transverse black band on each ring. 

 These bands are sprinkled with orange spots. It lives on the 

 fennel, carrot, and other Umbelliferse. If teased it thrusts from 

 the first ring after the head a fleshy orange- coloured ten- 

 tacle. The chrysalis attached to a stalk of grass is sometimes 

 light green, sometimes greyish. 



In the low Alps, on the plains near the environs of Digne and 

 Barcelonette, is found in the months of May and July the Papilio 



Fig. 142. The scarce Swallow-tailed Butterfly (Papilio podalirius). 



alexanor (Fig. 141), and in Corsica and Sardinia is found the Papilio 

 hospiton, a rare species, nearly related to our Swallow- tailed 

 butterfly, but which we will here content ourselves with men- 

 tioning. 



The Papilio podalirius (Fig. 142) is in form very analogous to 

 Papilio machaon. It is of a rather pale yellow colour, marked 

 with black as if singed. The lower wings have tails longer and 



N2 



