98 THE CANADIAN ENTOMOLOGIST. 



After fourth moult. — Length, .85 inch. _^ Marked and striped as 

 before, but the lines broken into dots, and the h'ght a pale green in the 

 pale stripes and a pale greenish-lilac in the darker stripes ; head with no 

 green ; joints 2 and 13 with very little green ; fringe more copious, about 

 1 5 to each joint on each side ; head about as before ; piliferous spots pale 

 orange, the posterior pair of dorsals to each joint more or less black, 

 these on the posterior part of the body wholly black, while on the anterior 

 part of the body only a part of each spot black ; the lateral spots similar. 

 Duration of this period, 6 days. 



After fifth moult. — Length, 1.25 inches. Striped with dorsal, supra- 

 stigmatal and substigmatal pale, and subdorsal and stigmatal dark stripes, 

 the ground colour a pale whitish with a slight greenish tinge ; the dorsal 

 stripe is made up of two broken purplish-black lines that make a series of 

 ellipses, the whole stripe making from one to two ellipses on each joint, 

 and in these ellipses there is a broken line of purplish-gray outside the 

 general black line; the separation between the stripes is a broken purplish- 

 black line, that is much broken into dots in pale examples and less so in 

 dark ones. The make up of the suprastigmatal stripe is two dark broken 

 lines alternating with three broken pale ones, this scarcely distinguishable 

 in the paler forms ; piliferous spots orange, a brown hair from each \ head 

 striped with black and sordid white ; venter white, with black patch on 

 each joint. Duration of this period, 6 days. 



After sixth moult. — Lenth, 1.90 inches. Ground colour pale green, 

 rather dull, with a slightly pinkish tinge over joints 5 to 8 and the anterior 

 half of 9 and a little over 11 to 12. General colour rather a dark gray ; 

 stigmatal and subdorsal stripes and the central part of the dorsal mottled 

 with black, with broken black bordering lines, the black in dots and 

 elongated dots that easily group into rows ; central part of suprastigmatal 

 like the dorsal only not quite so distinct black, each with a row outside 

 the central black of dull reddish that is between a reddish-brown and 

 purplish-red ; substigmatal stripe with a dark lower part and a paler 

 upper part containing its reddish line ; joints 2 to 4 and posterior part of 

 9 and anterior part of 10 with all the mottlings black, so that these 

 parts are darker than the rest of the body, especially is this the case with 

 joints 9 and 10; posterior part of joint 12 slightly elevated; piliferous 

 spots, dorsal and part of upper row of lateral red with whitish tips, the 

 others mostly whitish with a little red at base ; head with a black stripe 



