236 ^^^ BUTTERFLIES OF THE 



broader than high, with a slight angular depression at the 

 summit ; at each vertex a straiglit, round, divergent horn, 

 thick at base, pointed at top. Color of head and horns 

 blackish brown. It moults the first time in from six to 

 nine days, when it is a little thicker in the middle, the 

 tails more slender and brown-tipped. Each joint is 

 several times creased, and on the summit of each ridge 

 is a row of white tubercles wdth white hairs. Color 

 dark green, banded and striped longitudinally with white. 

 Head higher, brown, green-tinted in front. 



Moults the second time in from five to ten days, when 

 it is .34 of an inch long ; shaped and striped as before. 



Moulting again in from five to eight days, the length 

 is .55 of an inch. The color is reddish buif, the summer 

 and fall larvae with a dorsal band of dark brown ; the 

 subdorsal stripe reduced to a broken dark brown line, 

 distinct only 'at the extreme hinder end of each segment 

 from 3 to 10 ; in the middle of each side a dark 

 brown stripe, at the base a rounded ridge, buff-colored, 

 and below this a brown line. Head green in front, with 

 brown stripes, back part and horns gray-brown. The 

 spring larvse after the third moult are bright yellow- 

 green striped with dark green, tails pink-tipped. They 

 remain in this stage from five to six days. 



The chrysalis is .52 of an inch long, cylindrical, 

 thickest through joints 6 and 7, shaped much as in the 

 preceding species. The color of the dorsum and entire 

 abdomen of the summer and fall broods is sordid yellow- 

 buff, the wing-, antennae-, and palpi-cases more yellow, 

 the surface finely streaked with brown. In the spring 

 brood the color is blue-green, the dorsum streaked ir- 

 regularly with whitish green. 



