37 



GATE-KEEPER. 



SPECKLED WALL. WALL BUTTERFLY. 



PLATE XVI. 



Hipparchia megcera, 

 Papilio megera, 



Papilio mmgera, 



Satynis megara, 

 it (1 



Dira megcera, 

 Papilio mwra, 



OCHSENHEIMER. LeACH. 



Stephens. Curtis. 



LiNN.'Eus. Lewin. Donovan. 



Sepp. Wilkes. 



Haworth. 



Latreille. Boisduval. 



duponchel. 



Hubner. 



Berkenhout. Harris. 



Those who study what may with truth be called the "Gay Science" 

 of entomology, derive a pleasure which those who devote themselves 

 to mere amusement form and can form no conception of, and that, 

 even from the inspection of those species which present no striking 

 attraction from the beauty of their colours. Such is the fact with 

 respect to the plain insect before us. 



This butterfly is to be seen flitting in its zigzag manner along the 

 banks which for the most part it frequents, in July and August. It is 

 fond of settling on walls, whence one of its English names, seeming 

 to take delight in those situations which are the most sheltered, and 

 from which the most heat is reflected. The shadow of your approach 

 disturbs it and you see it flit off, and settle again at some little distance, 

 or continue its irregular flight along the bank. 



It occurs from Brighton to Llandudno, and from Bisterne to Doncaster, 



The caterpillar is found in the beginning of May, and also in 

 August. 



It feeds on different grasses. 



The expanse of the wings in this species varies from one inch and 

 a half to nearly two inches. The ground-colour is pale yellowish 



