174 '^HE INSECT WORLD. 



the head a fleshy, orange-coloured tentacle. The chrysalis, attached 

 to a grass stalk, is sometinnes light green, sometimes greyish (Fig. 140). 

 In the Basses-Alpes, on the plains near the environs of Digne 

 and Barcelonnette, is found in May and July the Papilio Alexanor 

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



Fig. 142.— The scarce Swallow-tailed Y>\xX.\.t^v^y {^Papilio podalirius). 



hospifon, a rare species, nearly related to the swallow-tailed butterfl}^, 

 but which we will here content ourselves with mentioning. 



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

 Papilio viachaon. 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 tlie 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 

 lyisle-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 



