THE CANADIAN ENTOMOLOGIST. 



about 50° Far. The first chrysalis was formed 15th Sept., 26 days from 

 the hatching of the larvae, and others at different dates up to the 26th 

 Sept., or 37 days from the egg. Forty per cent, of this brood, or 52 

 larvc'e out of 127, became lethargic after second moult. I entered in my 

 journal as follows : " i6th Sept., 52 larvae have ceased feeding at second 

 moult.'"' " 26th Sept., fully one-half of the larvae which had ceased 

 feeding at second moult began to feed again, after resting a few days, and 

 have now passed third moult." After which tliey became lethargic and 

 so remained. I was much puzzled at finding ki the summer that the 

 broods then had but four moults, as I satisfied myself by repeated tests,, 

 and that, in each brood, inasmuch as I had noted down three fall moults in 

 some cases, and two in the spring in the larvae of" 1875, and written 

 descriptions of them. Moreover Miss Peart had made a drawing of this 

 third fall moult, and it did not correspond with any one of the summer 

 moults, though plainly later than the second, and much smaller than the 

 summer third, besides differing from it in markings. But in the brood 

 of larvae, whose history I have just recited, the two moults show for 

 themselves, as I have them now before me, and the third agrees with Miss 

 Peart's figure. The species passes five larval moults in the winter brood, 

 though perhaps but four in some cases, and there are but four in summer. 

 I returned to Coalburgh 15th Oct., and till I reached this place the 

 weather on the way had been cold, with several frosty nights. So that for 

 a period of 30 days, the chrysalids had at no time been exposed to 

 warmth. The day I arrived, the butterflies began to emerge, and before 

 the end of a week all that were living had come forth, viz., 9 males, 10 

 females. Several were dead, from bruises received on the journey. Of 

 these 9 males, 4 were changed to mania, var. C, 3 were var. D, 

 and 2 were not changed at all. Of the 10 females, 7 were changed, 5 

 of them to var. B, 3 to var. C. The other 2 females were not different 

 from many tharos of the summer brood, having large discal patches on 

 under side of hind wings, besides the markings common to the summer 

 brood. 



Ten of the chrysalids of this brood I mailed from the Catskills to 

 Mr, Lintner, at Albany, N. Y., asking him to keep them in a cool place 

 and watch the result. I have before me from these chrysalids 6 butter- 

 flies, which emerged between 21st Oct. and 2nd Nov., all females, and 

 all of var. B. Of the remaining chrysalids, Mr. Meske, in whose charge 

 they were placed, writes, 27th Dec, that three seem to be still alive, and 



