THE CANADIAN ENTOMOLOGIST, 159 



spotted with yellow-brown ; under side wholly brown ; the spines long, 

 sharp ; head as before. To next moult 2 days. 



After 3rd Moult. ^ — Length .7 inch ; slender, whiter than before, the 

 color not pure but with a green tint; dorsal spines .1 inch long, upper 

 laterals .09 inch, lower laterals .07 inch ; head greenish-yellow, the pro- 

 cesses more like the body spines, .08 inch long, directed forward and a 

 little recurved. To next moult 3 days. 



After 4th Moult — Length i inch, and in 3 days reached maturity. 



Mature Larva.— Length 1.25 to 1.5 inch ; cylindrical, slender, 

 nearly of even size from 2 to 12, the segments a little rounded; color 

 dead white, Avith no gloss, smooth, with no hairs ; spotted with black or 

 black-brown, the spots disposed in cross rows, two of which are back of 

 the spines and one on the extreme anterior end of the segment ; mostly 

 rounded or oval, but those on medio-dorsal line are half-oval except the 

 spots on the posterior edges of the segments, which are triangular ; these 

 spots form one dorsal row and two on either side ; over the basal ridge, on 

 4 to II, is a brown patch covering the adjacent edges of the segments; 

 another patch covers each spiracle ; under side reddish-brown with a green 

 tint ; segment 2 has a dorsal chitinous bar divided in middle, and on 

 either part are two black tubercles with hairs ; the body furnished with 

 six rows of spines, two sub-dorsal, one on middle of each side, and one 

 infra-stigmatal ; the dorsals run from 3 to 13 ; the upper laterals from 5 to 

 13, the lower from 5 to 12 ; and between 2 and 3, 3 and 4, in line with 

 upper laterals, is a spine ; the spines of the four upper rows are straight 

 and erect, but those of the lower row are turned 'down and a little 

 recurved ; all are alike, shining black, and about each are from 5 to 7 

 short black bristles irregularly placed ; the dorsals measure .16 inch, the 

 ist laterals .14, the lower i inch, and there is little variation in the length 

 of the spines of each row ; legs brown, tipped black, pro-legs brown, with 

 a black spot on the side of each ; head obovoid, rounded in front, trun- 

 cated, a little depressed at the suture, the vertices but little elevated, 

 rounded; color greenish-white, vitreous; on either side the suture on 

 mid-front a round black spot ; the ocelli black on a small black patch ; 

 mandibles black ; on each vertex a black spine nearly like those of the 

 body, but less tapering and more blunt, . i inch long, directed forward at 

 about 45°, and a little recurved. 



As the larvse approach suspension the spots change to brown, and the 



