THE CANADIAN ENTOMOLOGIST. 237 



and so kept till 20th July. I had then to leave home for a few weeks 

 and sent the box to the ice house, with directions to place it on the sur- 

 face of the ice. I learned afterwards that this was not done, but that it 

 was set on straw near the ice. By this means the influence of the cold 

 was necessarily modified, and I doubt if the chrysalids within the box, 

 from the manner in which I had packed them, were equally subjected to 

 the cold, those on the outside certainly feeling its full effects, but those 

 in the middle to a less degree, and perhaps so much less as not to have 

 made the experiment of much value so far as they were concerned. I 

 returned on the 20th of August and was informed that the ice in the 

 house had just failed. The chrysalids had been subjected to quite a 

 low temperature, and an equable one, while in the refrigerator for between 

 three and four weeks, but from the defective packing had then probably 

 not felt the cold in an equal degree, and they had been subjected to a 

 lesser degree of cold in the ice house for live weeks longer, which also 

 for some time must have been daily diminishing as the volume of ice 

 decreased. That the severity of the cold was not sufficient to prevent the 

 emerging of the butterflies was apparent when I opened the box, for there 

 were discovered a number of dead ones, which had died as soon as they 

 emerged, the wings being quite unexpanded. I threw out twenty-seven 

 such, besides a number of dead chrysalids, and lamented that my experi- 

 ment had failed, and that the work would have to be done over again 

 next year. But one butterfly was alive, just from its chrysalis, and this I 

 placed in a box in the house in order that it might expand. Here it 

 remained forgotten till late at night, when I discovered that it was a 

 telamonides of the most pronounced type. The experiment had not failed 

 then. Early in the morning I made search for the dead and rejected 

 butterflies, and recovered a few. It was not possible to examine them 

 very closely from the wet and decayed condition they were in, but I was 

 able to discover the broad crimson band which lies above the inner angle 

 of the hind wings, and which is usually lined on its anterior side with 

 white, and is characteristic of either Walshii or telamonides, but is not 

 found in marcellus. And the tip only of the tail being white in Walshii, 

 while both tip and sides are white in telamonides, enabled me to identify 

 the form as between these two. There certainly were no Walshii, but 

 there seemed to be a single marcellus, and excepting that all were telam- 

 onides. 



The remaining chrysalids were now kept in a light room, and next day 

 three telamonides emerged. By the 4th September fourteen of the same 



