72 THE CANADIAN ENTOMOLOGIST. 



translucent brown at base, except on 3 and 4, where they are dull yellow ; 

 all of the two lateral and the intermediate rows are dull yellow from base 

 (including the tubercles) half way to top ; tops of all spines and all the 

 bristles black ; feet and legs brown ; head sub-cordate, deeply cleft, flat- 

 tened in front ; on each vertex a small conical process ; over the front 

 many short black hairs ; color black, the back of head reddish-yellow, 

 sometimes dull yellow. Twenty-four hours after suspension the larva 

 pupated. 



CHRYSALIS— Length 1 inch, greatest breadth .3 inch ; shape of 

 Diana; cylindrical, a little compressed laterally, the wing cases prominent 

 and flaring at the base on ventral side; the whole surface finely cor- 

 rugated ; head case square, bevelled at the sides, rounded transversely, the 

 outline from top of mesonotum to extremity being arched ; on either ver- 

 tex a small conical process ; mesonotum carinated, followed by a deep 

 rounded excavation ; on middle of either side of mesonotum a small 

 conical tubercle ; on the abdomen two dorsal rows of similar tubercles 

 and a row of small ones on each side ; the color varies somewhat, some 

 examples being red-brown, irregularly mottled with black ; on the wing 

 cases red-brown and the black is limited mostly to the disk and nervines ; 

 others are drab and black, the wing cases finely streaked with black, other- 

 wise drab ; on the abdomen the front part of each segment is black, the 

 rest drab, irregularly serrated at the junction. Duration of this stage 22 

 days. 



(My larval descriptions are in all cases drawn shortly after the hatching 

 or after the moult, say from 12 to 24 hours. In this period of the stage 

 the colors are fresher than afterwards. Some larvae, as Limenitis Arthe- 

 mis, change color essentially two or three days after some of the moults, 

 and in all cases, as the next moult approaches, the skin loses its freshness 

 and all color becomes dulled.) 



I have received eggs of Alcestis several times, and in the years 1876, 

 '77 and '78, from Mr. Worthington and Mr. Bean, the one at Chicago, the 

 other at Galena. The females were shut up with plants of violet and laid 

 abundantly, in September. I have stated above that some of the larvae 

 in 1878 fed, after leaving the egg, and went on to second and one to even 

 third moult, but that these all died on the approach of cold weather. I 

 have known no other instance among our large Argynnids, Diana, Idalia, 

 Cybele, Aphrodite, where the larvae proceeded to feed and moult the same 



