THE CANADIAN ENTOMOLOGIST. 1 7 I 



gradually shading into the purple ; yellow tinted between the joints; 

 piliferous spots blaek ; joints in the middle of the body with black patches 

 on the venter. The posterior pair of piliferous spots on the dorsum of 

 joint 9 are, like other species, more approximate than the others and the 

 intervening space elevated, the elevation containing four spots in a trans- 

 verse row with a patch of pale yellowish back of these. Duration of this 

 period five days. 



After 4th Moult. — Length, 1.20 inches. Color, pale green, almost 

 white, with a slight yellow tinge, more distinct underneath the top of joint 

 2, the legs and a substigmatal stripe distinct yellow ; the transverse folds 

 between the joints with more of the yellow tinge. Head striped with 

 dark reddish purple (this was black before) and ' white, the markings 

 arranged as before but the stripes are almost obliterated on the body 

 except on joints 2 to 4, and the transverse folds between the joints where 

 they are distinct as to the rows of black dots that mark the boundary of 

 the stripes, faint traces of these on the middle of the joints ; the black on 

 the venter small except on the middle joints. Piliferous spots black, not 

 very large ; a prominent black patch on each side of the posterior part of 

 joint 9, composed of three spots, a short dorsal orange line between them ; 

 the posterior pair of spots on the back of joint 12 more prominent than the 

 others ; no lateral fringe, but a slight fold above the pro-legs ; the anterior 

 two pairs of pro-legs pretty well developed. 



Mature Larva. — Length, 2.25 inches. Color, sordid white, a little 

 green tinted, very obscurely striped as at the beginning of the stage, the 

 bordering blackish dots marking the boundary of the stripes most dis- 

 tinctly on the intersegmental folds ; the black on joint 9 the same as before 

 with a very short orange stripe between ; the substigmatal pale stripe 

 orange on joints 5 and 6 ; joints 2 to 4 with the rows of spots distinct. 

 Piliferous spots small, black ; venter white, tinted a little with yellow, 

 black only on the joints bearing feet ; no fringe. Duration of this period 

 nine days. 



Chrysalis — Length, 1.05 inches ; diameter, .40 inch; of joint 5, .30 

 inch ; tapering from joint 5 to the end ; rather strongly indented on joint 

 1 ; tongue and wing cases equal, extending back to posterior part of joint 

 5 ; cremaster two long hooks at the tip, two shorter at the base, outside 

 of these and a little removed from them several other short hooks ; abdom- 

 inal joints slightly punctured, the tongue and wing cases shallowly corru- 



