32 LEPIDOPTERA. 



appears again in March and April, in its very restricted 

 localities. 



Larva rather stout, cylindrical, except that the head is a 

 little narrower than the second segment, which, with the 

 third, tapers slightly forward, and that the thirteenth is 

 tapered to the end ; head full and rounded at the sides, olive- 

 brown, freckled and reticulated with darker brown ; second 

 segment slightly more shining, adorned on the back with 

 two pairs of yellow spots, raised dots all pale yellow, distinct, 

 ringed with black ; skin smooth and velvety, olive-brown 

 tinged with green, more particularly on the back ; sides and 

 ventral surface rather paler and tinged with pink ; dorsal 

 stripe pale yellow, interrupted by a deep blackish freckled 

 patch of the ground colour at the beginning of each segment, 

 which by extension backward on either side forms the 

 boundary of more than one-half of a blunt diamond of 

 blackish freckles, the area within showing the yellow dorsal 

 stripe but faintly ; this dark freckling with a deeper suffusion 

 of ground colour forms a line across the back from the hinder 

 raised yellow dot on one side to that on the other ; the rest 

 of the diamond is but faintly freckled, and there, at the end 

 of each segment, the dorsal stripe is bright and unclouded ; 

 subdorsal stripe pale yellow ; into it from the hinder raised 

 yellow dot on each segment runs an oblique thick black streak 

 extinguishing it nearly to the segmental division, or in some 

 instances opens a little at one or at each end, so as to allow 

 the yellow stripe to appear ; below on the side is a fine wavy 

 yellowish line, its edges roughened by black atoms; spiracular 

 line thin, yellow, the area above it much freckled with 

 deeper olive-brown ; spiracles oval, dirty- white, ringed with 

 black ; undersurface and legs paler, and tinged with olive- 

 pink ; prolegs freckled with yellow and olive, and tipped 

 with pinkish-brown. 



The young larva when just hatched is semi-translucent, 

 pale drab, with a green internal dorsal stripe ; when a fort- 



