THE GRAYLING. 191 



cuous : the posterior wings are clouded with white 

 and dark brown, the basal half darkest, and the dark 

 part terminating near the middle, in an irregular 

 sinuated line ; there is likewise a small ocellus cor- 

 responding to that on the opposite surface. 



The caterpillar and chrysalis are both light-green, 

 the former with brownish legs. 



The butterfly frequents rocky and stony places, 

 and occurs rather plentifully in such situations in 

 most parts of the country. The rocky sides of Ar- 

 thur's Seat, and similar localities throughout the 

 south of Scotland, afford it in considerable plenty in 

 certain years, and we have seen several examples 

 from Sutherland and other northern counties. Among 

 the numerous localities cited by English entomolo- 

 gists, we may mention Newmarket, Dartmoor, Nac- 

 ton Heath in Suffolk, and Lexden Heath in Essex. 

 In the neighbourhood of Newcastle, Mr Wailes in- 

 forms us that it is almost confined to the magnesia*) 

 limestone, and another correspondent states that 

 it is not unfrequent in stony places near Durham, 

 and in Castle Eden Dean, during the month of 

 July. 



