156 BRITISH BUTTERFLIES. 



are Croydon ; Brighton ; Lewes ; Dover ; Winches- 

 ter ; Isle of Wight ; Halton, Bucks ; Newmarket ; 

 Peterborough; Norfolk; Suffolk; Berkshire; Oxford- 

 shire ; Wiltshire ; Gloucestershire. At Grange, North 

 Lancashire, it is the commonest "Blue/ 7 not on chalk, 

 but limestone. 



THE ADONIS BLUE. 



(Polyommatus Adonis.} (Plate XIV. fig. 3, Male; 

 3 a, Female.) 



Colouring: Upper side, male, brilliant sky-blue, 

 without any lilac tinge, bordered by a distinct black 

 line, the fringe distinctly barred with blackish. Female, 

 dark smoky brown, sprinkled near body with pure 

 blue scales the colour of those of male ; border of orange 

 spots, more or less visible. 



Under side, male, marked as in fig. 3 ; border of red 

 spots. 



Female, almost exactly like that of Corydon (fig. 

 2 a), but usually has the black spots on the front wing 

 smaller. 



This is a most lovely little butterfly, the blue of its 

 upper surface being quite unapproachable among native 

 insects. Mr. Stainton, speaking of the different blues of 

 Corydon and Adonis, happily observes that, " Corydon 



