94 



BLACK HAIRSTREAK. 



PLATE XL. 



Theela Priini, Stephens. Curtis. Duncan. 



" " Westwood. 



Papilio Pruni, LiNN^us. Hubneb. 



Strymon Pruni, Hubnee. 



Lyccena Pruni, Ochsenheimee. 



Barnwell and Ashton Wold, and the neighbourhood of 

 Polebrook, Northamptonshire, where the Rev. William Bree 

 has captured it in plenty. Black hill, near Exmouth, Devon- 

 shire, where James Dalton, Esq., of Worcester College, Oxford, 

 has taken it, and Monk's Wood, in Huntingdonshire, are 

 localities for this fly. 



It appears the middle of July, but has been taken I believe 

 so soon as the 18th. of June. 



This species averages about an inch and a quarter in the 

 expansion of its wings. The fore ones are of a blackish 

 brown colour, with a light silky patch near the middle towards 

 the front edge. The hind wings have two or three, or more, 

 pale orange-coloured semicircular-shaped spots near their hind 

 margin at the inner corner, and extending more or less 

 forwards, often running much together into a line. 



Underneath, the ground colour is an ash grey, the fore wings 

 having a slender, nearly straight, bluish white line extending 

 nearly across them beyond the middle; outside this line there 

 are several obscure fulvous patches, those nearest to the lowest 

 corner being preceded by a black and silver dot or eyelet. 

 The white line proceeds from the fore wings, and reaches to 

 the inner margin of the hind wings, where it becomes more 

 irregular, somewhat resembling an obtuse W. The black spots, 



