174 THE INSECT WORLD. 



the head a fleshy, orange-coloured tentacle. 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 

 Alexanor (Fig. 141), and in Corsica and Sardinians found the Papilio 



Fig. 142. The scarce Swallow-tailed Butterfly {Fapilio podah 



hospiton, a rare species, nearly related to our swallow-tailed butterfly, 

 but which we will here content ourselves with mentioning. 



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

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

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

 than those of the latter, and are magnificently ornamented with blue 

 crescent-shaped spots and an orange-coloured eye bordered below 

 with blue. This beautiful species is not rare at Montmorency, at 

 He- Adam, and at St. Germain. It is said to have been taken in 

 England, and is called the scarce Swallow-tail, but its capture is con- 

 sidered as very questionable. It appears for the first time at the end 



