THE CANADIAN ENTOMOLOGIST. 203 



objects as to be almost invisible, particularly on Desmodium, as both larva 

 and plant were of nearly the same shade of green. On the clover they 

 escaped sight down among the flowrets. Only by keeping them in small 

 wine glasses could I have saved them. On clover, the tender leaves were 

 rapidly eaten by the very young larvae, a single larva eating out two or 

 three furrows the width of its body, and side by side. As they became 

 larger they seemed to feed on the calyces of the flowrets exclusively, 

 curving themselves to the surface of the clover head, or burrowing into 

 it. On Deymodium, as there were no flowers in bloom, only the tender 

 leaves and immature flower buds were eaten. When about to change to 

 chrysalis the larva rested motionless for several hours, usually on the upper 

 surface of a leaf, the green shade becoming gradually yellowish, then 

 red, rusty brown, and a loop was thrown over the body almost mid-length. 

 When the change had occurred, the shape and appearance of the green 

 chrysalis was so like that of the larva as to require some inspection to 

 discover whether it was a chrysalis or no, lying flat on the leaf, the upper 

 side rounded and of almost exactly the larval shape. To make the 

 resemblance still closer, the chrysalis is as hairy as is the larva. I believe 

 that wherever comyntas is found, two sizes of the butterfly appear, one 

 of scarcely more than half the superficial area of the other. I do not 

 know of any other species in which this peculiarity is regularly found. Both 

 forms were among the butterflies from these chrysalids. The species is also 

 dimorphic in the female, most of this sex here being black, the others blue 

 with broad black margins. This phenomenon is similar to that of Pseud- 

 argiolus in its winter form violacea. At Coalburgh, there must be several 

 successive broods of comyntas during the season, as fresh individuals are 

 seen every month from April to September. 



I subjoin a description of the several stages : 



EGG ; round, flattened, depressed at top, covered with a frost work 

 of interlaced points ; in color delicate green. 



YOUNG LARVA; length .05 inch; shape rather cylindrical ; color 

 yellowish, excepting a few white tuberculated points on dorsum, arranged 

 in two longitudinal rows ; a similar row at base of body ; from each of all 

 these points arises a long, curved, white hair ; head nearly as broad as 

 second segment, black, shining, retractile. 



Following the larva which fed on Desmodium : 



After FIRST MOULT ; length .08 inch ; onisciform, flattened, the 

 dorsum flat at top, sloping towards base of body ; color greenish ; the 



