70 THE CANADIAN ENTOMOLOGIST. 



forward ; the other two rows are beneath spiracles (one on each side), and 

 consist of much smaller spots, each with two or three short hairs ; still 

 lower down, in a line over the feet, are points, with fine hairs ; on segment 

 2 is a blackish dorsal patch, and on either side are two small spots, and 

 all these are furnished with hairs ; on 13 is a row of four small spots, and 

 behind it one of two ; head a little broader than any segment, rounded, 

 slightly bilobed, somewhat pilose ; color dark brown. 



Nearly all the larva? became lethargic immediately after leaving the 

 egg, having first devoured the egg shells ; but a few, of a single brood in 

 1878, about ten per cent, fed and proceeded to first and subsequent 

 moults. These gradually died off after first and second moults, but one 

 lived several days after third, and died about 14th November. In the 

 fall, the first moult was reached at about 18 days from the egg. The 

 remaining larva? were kept in a cool room, and such as survived were 

 placed in the greenhouse 14th Jan., on violet, and began to pass first 

 moult nth Feb., or after 28 days. 



AFTER FIRST MOULT— Length .15 inch; thickest in middle; 

 color yellow-green, on dorsum mottled with brown, especially at bases of 

 spines ; the spines, which in all the Argynnids make their first appearance 

 at this stage, form six longitudinal rows of large spines, two of which may 

 be described as dorsal and two as lateral, besides a row of very small 

 spines along base of body, over the feet ; the dorsals begin at 2 and run 

 to 13, one upon each segment, in each row ; the two laterals begin at 5, 

 and the upper one stops at 12. the lower continuing to 13, always but one 

 on each segment ; on either side of 2 are two minute tubercles with hairs, 

 two also on 3, and three on 4 ; between 2 and 3 and between 3 and 4, at 

 junction of the segments, is set a large spine which lies between the dorsal 

 and first lateral row on each side ; (this arrangement of spines probably 

 belongs to the entire genus, at least to all species whose caterpillars are 

 known to me, and continues till last larval stage) ; spines long, tapering, 

 black, beset with many short and fine black bristles ; the spines on second 

 lateral row now rise from yellowish tubercles (but in some examples these 

 spines were green and rose from greenish tubercles) ; all others from black 

 ones ; head sub cordate, black, with many short t>lack hairs. To second 

 moult in fall 5 to 7 days ; in spring from 14 to 24 days. 



AFTER SECOND MOULT— Length .22 inch ; shape as at previous 

 stage ; color black-brown, the sides less dark than dorsum ; the tubercles 



