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 beauti- 
ful 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 Umbellifere. 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 (Papziio podalirius). 
alexanor (Fig. 141), and in Corsica and Sardinia is found the Papilio 
Aospiton, a rare species, nearly related to our swallow-tailed 
butterfly, but which we will here content ourselves with men- 
tioning. 
The Papiho pedatirius (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 
