i6o LEPIDOPTERA. 



the ground colour of the fore wings more tinged with grey or 

 bluish, and the markings more purplish, while in North 

 Staffordshire this tendency appears to be intensified, speci- 

 mens forwarded from that district by Mr. F. C. Woodforde 

 being decidedly bluish, with almost blackish-purple clouding. 

 Examples from Scotland appear to be usually smaller than 

 those from the south and middle of England. 



On the wing in June, extending into July in the north. 



Larva active and energetic ; stout, even in thickness, but 

 each segment swollen, especially at the sides, and the 

 divisions consequently rather deep ; head rather smaller but 

 broad and full, with smooth shining pale brown lobes which 

 are sometimes clouded with darker brown, a good deal re- 

 tracted into the second segment when at rest ; body light 

 purplish-brown with a dusted appearance from abundant 

 purplish clouding ; dorsal line on the four anterior segments 

 very narrow, whitish, edged with dark brown, fading out in 

 the middle of the fourth body-segment, and only indicated by 

 a series of dark brown clouds at the junctions of the re- 

 mainder ; along the subdorsal region is a series of pale 

 brown clouds ; ordinary raised spots darker brown ; spiracles 

 dull black, placed at the apex of the swollen lateral portion 

 of each segment ; undersurface and legs very pale brown ; 

 prolegs semi-transparent brownish-grey with the claspers 

 dark grey. (Described from larvjB furnished by Mr. Wood- 

 forde for this purpose.) 



The young larva before hybernation is of a light orange- 

 brown mottled with pinkish and darker brown ; dorsal line 

 whitish edged on each side by a blackish line, but the white 

 line is much broken up into dots and streaks ; subdorsal line 

 similar but much obscured by a dusting of blackish which 

 covers the sides ; head cinnamon-brown, streaked and reticu- 

 lated with dark brown ; raised dots whitish, margined with 

 blackish-brown on the upper side, each bearing a blackish 

 hair ; spiracles pinkish outlined with black ; and the sides 

 below them are freckled with pink. (VV. Buckler.) 



