ARGYNNIS PAPHIA. 59 



ing, turns paler in about a week, and in the middle of 

 the second week paler again, with a leaden-grey blotch 

 near the top showing the place of the larva's head. 



The young larva on hatching breakfasts on the egg- 

 shell, and is worth describing minutely, because its 

 appearance changes so much after a moult ; it looks 

 shortish and rather stout ; the ground colour ochreous - 

 yellow ; the head shining blackish-brown, a dingy olive 

 collar on the second segment; all the usual warts 

 large, shining, of a deeper tint than the ground colour, 

 and furnished with stiff bristles ; on the seventh, ninth, 

 and eleventh segments are a pair of lateral, deep, dull 

 brownish-ochreous spots, which enclose the hinder trape- 

 zoidal and the upper lateral warts ; on the thirteenth 

 segment the four trapezoidals are soldered into a 

 plate. 



On its first appearance in spring the larva is no 

 more than one- eighth of an inch long, having appa- 

 rently moulted but once before hibernation ; the special 

 ornamentation of the seventh, ninth, and eleventh 

 segments is gone, though the ground colour is still 

 ochreous; it now moults, and though similar to its 

 previous ochreous appearance, yet the colours are 

 fresher and the ground is seen to be varied by a dorsal 

 line of brown, widening somewhat diamond-fashion 

 through each segment, and met by oblique lines from 

 two darker brown subdorsal spots placed at the begin- 

 ning, and a similar pair of spots at the end of each 

 segment ; the sides brownish, broken with ochreous, 

 with a paler subspiracular region, the belly brownish ; 

 the ochreous pale portions of the colouring are glossy, 

 the brown parts dull; several series of warts, each 

 with a bristly hair, indicate the position of the future 

 spines. The head is black. 



After another moult, some time between April 12th 

 and 20th, the spines appear, they are alike short and 

 stumpy, pinkish-brown in colour, with black tips and 

 branches. The head and body are now black, with 

 double lines of whitish-violet on the back. At this 



