JULY. 199 



mainder grey, marked with waving lines of brown, and a 

 faint series of bluish crescents towards the tip : there are 

 one or two pale spots on the wings. The caterpillar is 

 bluish-brown, with a lateral stripe of orange ; the spines 

 are slightly yellow : whilst young, the larvae live together 

 in a silken web, but disperse after they have changed their 

 first skin ; they feed on the willow and elm. This is not 

 one of the most common Butterflies, though occasionally 

 found in great abundance in the southern counties and in 

 the Isle of Wight. 



LEPIDOPTERA. NYMPHALID^:. 



HIPPARCHIA. 



Generic Distinctions. See page 98. 



HIPPARCHIA SEMELE. The Greyling. This is one of 

 the largest species of the genus, sometimes reaching to two 

 inches and a half across the wings ; the greater part of the 

 surface is brown, varying much in depth of colour ; the 

 female has a wide band of pale yellow near the hinder edge 

 of the anterior wings, in which are placed two ocelli. The 

 male has only a yellowish patch round each ocellus ; the 



