THE CANADIAN ENTOMOLOGIST. 49 



black and creamy white ; under part grayish brown, with two pretty well 

 defined streaks of this color on the white part of the sides. The colors 

 above are as follows : Joints 2 to 5 black, 6 white, 7 to 10 black, 11 

 white, 12 black, and the terminus of 13 black ; a fine dorsal line of clear 

 white ; the tubercles the same as before, each bearing a cluster of hairs of 

 various lengths, the longest nearly as long as the body ; the two dorsal 

 tufts on joints 5, 7 and 1 2 with small pencils of short black hairs ; a few 

 black hairs from the tubercles on the other black joints ; the hairs from 

 the tubercles of the white joints clear white, with a few brown hairs inter- 

 mingled in the dorsal pencils ; head and feet black. Duration of this 

 period, 4 days. 



After Third Moult : — I^ength .60 inch. On the dorsum are three 

 stripes, a broad gray one in the middle, in the centre of which is a fine 

 white line, and each side of this stripe a whitish stripe ; below this most 

 of the side is pale yellow ; the whole strongly tinged with green. The 

 tubercles bear thick clusters of short spreading hairs ; the dorsals on 

 joints 5, 7, 8 and 12 black, with a few black ones in some of the others, 

 ' but most of the rest of dorsal hairs white ; those from the white stripe, 

 white ; those from the yellow stripe, yellow and mostly longer than the 

 others ; a long fringe each side of the body, extending round the posterior 

 extremity. Head and thoracic feet black. Duration of this period, 6 

 days. 



After Fourth Moult : — Length i inch when at rest. Color of body 

 yellowish green, with a gray dorsal stripe ; under parts grayish brown ; 

 the whole body covered with fine yellow hairs that spring from the gen- 

 eral surface as well as from the tubercles ; the tubercles or piliferous spots 

 scarcely distinguishable from the general surface save that from these the 

 hairs are more in clusters ; a few black hairs in place of the former black 

 pencils. Head black, the front with the usual pale inverted Y ; the sides 

 mottled with black and pale brown. Duration of this period from 4 to 5 

 days. 



Mature Larva : — Length when crawling 1.60 inches ; when at rest 

 1.40 inches. Characters the same as at the beginning of the period. 



Chrysalis : — Length .80 inch ; to end of wing cases .40, these extend- 

 ing almost to the posterior part of joint 5 ; depth from .21 to .22 inch ; 

 cylindrical, tapering gradually from joint 5 back, the tongue case extend- 

 ing only to the anterior part of joint 5 ; the anterior part of abdominal 



