THE HAIRSTREAKS, COPPEE8 AND BLUES 195 



appearing in small numbers, during June and July, in parts of 

 South Devon, Gloucestershire, Northamptonshire, and a few other 

 counties. 



The colour of the upper side 

 is a dark and rich blue, with a 

 broad dark border on the hind 

 margins, and a group of black spots 

 near the centre of the fore wings. 

 The under side (tig. 95) is of a 

 pearly grey, without any red spots, 

 but having a double border of 

 black spots, and also an irregular 

 row of black spots in white rings 

 across the middle of each wing. 



The caterpillar feeds on thyme (Tliymus Serpylhim), on which 

 plant the eggs are laid singly, generally on the flower heads. 



FIG. 95. THE LARGE BLUE - 

 UNDER SIDE. 





