WALL GRAYLING. 99 



black eye-spots. The under side of the hind wings is 

 pencilled with sober colours, but in a design of great 

 beauty and delicacy ; and especially to be admired are 

 the double-ringed " eyes," a band of which runs parallel 

 with the outer margin of the hind wings. 



The caterpillar feeds on grasses ; is green, with three 

 pale lines down the back, and one more clearly marked 

 on each side. 



The butterfly appears in May, and again in August 

 and September; and is everywhere common throughout 

 the country. 



It is called the Wall Butterfly from its frequent 

 habit of choosing a road-side wall for a perch, whence, 

 on the approach of man, it darts off; returning again, 

 however, on the departure of the obnoxious person. 



THE GKAYLHSTG BUTTEBFLY. 



(Hipparchia Semele.} (Plate V. fig. 6, Female.) 



THIS fine insect is the largest British species of the 

 genus, and also of the family, some of the females mea- 

 suring two inches and three-quarters from tip to tip 

 across the expanded wings ; and it also exhibits more 

 vivacity of colouring than most of its brethren. 



Above, the wings are deep brown, marked with 



H2 



