102 CARSIA JMBUTATA, 



Carsia IMBUTATA. 

 Plate CXLVI, fig. 1. 



For eggs of this species I am indebted to Mr. 

 Edwin Birchall and Mr. George T. Porritt, who sent 

 me a good supply in August, 1871. 



These eggs were kept out of doors through the 

 winter, and the larvae began to hatch towards the end 

 of April, 1872, — that is to say, some of them did so ; 

 a great many mnst have died in the egg 9 and many 

 more soon after hatching, for in the first week of 

 May I found but two alive. The wintry time in April, 

 succeeding the more open weather of the preceding 

 months, was, I believe, the canse of this mortality, and 

 before long killed also one of the two survivors ; and 

 yet it has so often happened of late that I have had 

 to carry on my investigations with a single larva out 

 of a numerous brood, that perhaps I ought not to 

 blame the weather so much as some fault of my own ; 

 possibly my bungling may be one link in the chain 

 of causes which work together in the natural selec- 

 tion of the individuals whose looks and doings get 

 chronicled in this Magazine. 



My one larva of C. imbutata grew slowly, feeding 

 on Vaccinium vitis-idxa at first, and afterwards on 

 V. oxycoccos, kindly sent me by Mr. Birks, until the 

 16th of June, when it spun up ; the moth appeared on 

 the 10th of July. 



The egg is not remarkable ; it is of an obtuse 

 oblong shape, flattened, with scarcely any gloss on 

 the shell, which is neither reticulated nor pitted ; the 

 colour at first is pale yellow, afterwards deeper yellow, 

 and not changing much again when the larva is near 

 hatching. 



The young larva is dull yellowish or greenish, with 

 a pinkish head, and with fine dorsal and broader sub- 

 dorsal brownish Hues ; as it grows it becomes of a 



