104 CARSIA IMBUTATA. 



into a large chip box with about half an inch of fine 

 loose soil, and it spun its cocoon under this, attaching 

 it to the bottom of the box. The cocoon is very weak, 

 being formed of particles of soil spun together with 

 not much silk. 



The pupa is slender in form, three-eighths of an 

 inch in length, the head-piece distinctly shaped, the 

 antenna-cases ending in a little bifid projecting knob 

 or spike, the skin shining ; the colour of the head and 

 wing-case was probably somewhat olive-brown when 

 the insect was within, the abdomen of a more reddish- 

 brown. 



The imago I bred was rather small, but most beau- 

 tifully coloured. (John Hellins, 8th August, 1872 ; 

 E.M.M., September, 1872, IX, 92.) 



LlTHOSTEGE NIVEARIA. 



Plate CXLVI, fig. 3. 



For our knowledge of the early stages of this 

 species we have to thank Mr. T. Brown, of Cam- 

 bridge, who has found the larvse feeding on Sisym- 

 brium sophia, in the locality where he had been accus- 

 tomed to take the moth. 



The larvse, however, which I have had this summer, 

 whether bred or captured, throve equally well on 

 Erysimum cheiranthoides, seeds of which had been 

 sent me in mistake for those of S. sopliia. 



Mr. Brown sent me eggs on the 18th and 25th of 

 June, and the larvaa appeared soon after, and fed up 

 in about a month, all of them having gone to earth by 

 the 1st of August. 



On the 3rd of August Mr. Brown sent me some 

 larvae which he had just captured in their locality, 

 and some of these continued feeding for nearly a fort- 

 night longer. 



The larva, when full-grown, is nearly an inch long, 



