THE CANADIAN ENTOMOLOGIST. 



difference. In the chrysalis Carlota is hke Tharos, and differs much 

 from Nycteis, which is built on the plan of Phaeton and the true Melitseas. 

 In habits, all three are essentially alike. I should put Thraos and 

 Batesii, with Camilhis, Ficia, and other western species in one group. 

 Carlota in the next, and Nycteis in the third, of the genus Phyciodes, 



I first received larvae of Carlota on the 15th of July, 1893, from Mr. 

 Charles A. Wiley, of Miles City, Montana, about a dozen, past second 

 and third moults, found on sunflower. On 24th, one larva pupated, on 

 28th another, and a third adult was put in alcohol. The rest of this lot 

 went into hibernation immediately after third moult, gathering in clusters 

 on a leaf, on a slight bed of spun silk. 



On loth August, I received another invoice of larvse in younger 

 stages from Mr. Wiley, after first and second moults. All these hiber- 

 nated after third moult. 



On Sept. 8th, came a cluster of about seventy-five eggs, from Mr. 

 Gillette, at Fort Collins, Colorado, laid by a female confined on leaf of Iva 

 Xanthifolia, 2nd Sept. Mr. Gillette informed me that at the same date 

 full-grown larvse were abundant on same plant and also Helianthus 

 annuus. These eggs were laid three deep, the bottom layer in rows of 

 nine eggs each, standing on their bases and close together ; the next layer 

 consisted of about a dozen, laid mostly on their sides, and the third layer 

 of three or four only. These eggs hatched, Sept. nth, or after nine days. 

 Mrs. Peart compared these eggs with eggs of Synchloe Lacinia, which we 

 had at the same time, and wrote me : " There is very little difference 

 between the two, about the same number of ribs (24), which reach a 

 little more than half way the length of sides, not so mucli as two- 

 thirds, but variable as to length ; the indentations below the ribs 

 shallow and irregular, the meshes between the indentations not sharply 

 defined J the same is true of the ribs also ; the tops of both are 

 very little depressed, but Carlota is of lesser diameter." These 

 larvse went on to third moult, passing each moult the same day. 

 I noticed the habit they had when alarmed of swaying the anterior half (or 

 more) of the body from side to side, all moving together, and just as may 

 be seen in larvae of Melitsea Phaeton and other species of that genus. 

 Almost at once after pasf^ing the third moult, 20th September, they 

 gathered in clusters on the side of the box or on the leaves, shrunk up 



