CIDARIA IMMANATA. 87 



a time indoors and some outdoors, but not a single 

 larva broke shell until the 5th of March, 1864, 

 when the larvse of my marmorata began to make their 

 appearance, at the rate of one or two a day. The 

 eggs from Westmorland and Sheffield, having been 

 deposited in chip boxes, could not so well be kept damp, 

 and had nearly all dried up ; most fortunately, how- 

 ever, in the first week of April a few larvae were 

 hatched from them. The var. marmorata larvae fed 

 away freely on wild strawberry, and occasionally on 

 sallow, and began some of them to spin up on the 

 27th of May (the day on which I bred my latest spe- 

 cimen of the spriug moths of G. russata), and by the 

 11th of June all were in pupae; the moths, to the 

 number of nearly fifty, emerged between the 13th of 

 June and the 4th of July. The type immanata larvae 

 fed up more slowly, going into pupae from the 10th of 

 June to about the same day in July, and the moths 

 appearing from the 28th of June to quite the latter 

 end of July, numbering about a dozen in all. 



The above dates call for no special remark, except 

 that (as is the case at times when insects are reared 

 in confinement) some of them are a little earlier than 

 those rightly assigned for these species. 



I subjoin comparative descriptions of the eggs and 

 larvae, the latter made from living specimens, and 

 rendered more exact by the help of Mr. Buckler's 

 pen and pencil. It was a great satisfaction that in 

 the second week of July we were able to put full- 

 grown larvaB of the two species side by side for com- 

 parison, but I am sorry I was not able to make fuller 

 notes of their changes after each moulting. 



The eggs of C. russata are of The eggs of C. immanata do not 



a flat oval shape, in colour a very differ from those of C. russata in 



pale ochreous, resembling that of shape, but in colour are yellowish, 



a pale tinted chip box. sometimes lightish red. 



The larvae of C. russata when The newly hatched larvse of 



first hatched are dirty whitish, and 0. immanata are yellow, nearly as 



somewhat translucent; after a yellow as the pollen of the flowers 



change of skin they become green- of the wild strawberry; this 



