222 LEPIDOPTERA. 



white portions of the fore wings decidedly obscured with 

 grey. 



On the wing from the end of June to the beginning of 

 August. 



Larva stout when contracted, but slender when elongated, 

 velvety, slightly tapering at each extremity ; head rounded, 

 not highly polished, dull brown ; body yellowish brown, much 

 tinged with emerald-green ; dorsal line threadlike, incon- 

 spicuous, of the ground colour, but placed in a greyish-brown 

 shade ; subdorsal line waved, threadlike, inconspicuous, 

 greyish-brown; spiracular stripe dull yellow, sometimes 

 much tinged with green, the sides above it shaded with 

 grey ; between the dorsal and subdorsal lines is a grey dot 

 on each segment ; spiracles prominent, black ; undersurface 

 bright emerald-green. When young the spiracular stripe is 

 white ; it afterwards turns yellow, sometimes tinged with 

 green ; when quite full-grown it merges in the colour of the 

 undersurface (C. Fenn). 



Evidently very variable. Buckler's figures are pale pink 

 with the markings very faint ; yellow-brown, with the dorsal 

 shade dull-red, and the markings much thickened ; pale 

 slate-grey with a dark grey spiracular stripe, and the under- 

 surface dull yellow ; purplish-red, with the markings increased 

 into transverse loops and the undersurface yellow ; and full 

 rich green, marbled on the back with black, or shaded with 

 paler green on the back, while the spiracular stripe is broadly 

 blue-green. 



July and August, on the buds, blossoms, and seeds of 

 garden lettuce, wild lettuce, Sonchus arvensis and S. oleraceus, 

 Ficris hieracioides, Crepis virens, Hicraciuin, and other Com- 

 positce, resting during the day upon the stems. 



Pupa of ordinary form, rather delicate, the skin thin ; dull 

 chestnut brown ; wing and limb covers smooth, but not 

 very glossy, anterior half of each abdominal segment abun- 

 dantly sculptured with minute punctures ; spiracles con- 



