PEARL-BORDERED FRITILLARY. 133 



localities. It has been taken at Brighton ; Shoreham ; 

 Eastbourne ; Dover ; Margate ; Ashford ; Chatham ; 

 Exeter ; Bristol ; Harleston, near Norwich ; Colchester ; 

 Lavenham; Peterborough. 



THE PEAEL-BOEDEEED EEITILLAEY. 

 (Argynnis Euphrosyne.) (Plate X. fig. 4.) 



THIS very common insect is considerably smaller than 

 any of the preceding species, though small specimens 

 of the last sometimes do not much exceed it in size. 

 The upper surface is lively orange-brown, with black 

 markings. Beneath, the hind wing is mapped out with 

 black lines into various irregular spaces, all of which 

 are filled with tints of dull yellow, ochreous, or reddish 

 orange ; excepting a row of silver spots on the border, 

 one silver spot in the centre of the wing, and one triangu- 

 lar one close to the root of the wing. 



The caterpillar is black, with white lines ; and the 

 pro-legs red. It feeds on various species of viola. 



The butterfly appears first in May, and there is 

 another brood in autumn, about August. It frequents 

 woods and hedgerows, being met with most profusely 

 in the south ; but its range is extended into Scotland. 

 In Ireland I believe it is unknown. 



