112 



behind the brown spots, from which arise diverging, whitish hairs. 

 On the lateral and stigmatal lines, on each segment, is a tubercle 

 from which arise hairs nearly two-thirds as long as the body. The 

 last segment has a row of small tubercles across the hinder part, from 

 which hairs arise. The spiracles are pale yellow, and the legs are of 

 the same color as the body. The true legs are marked oa the outside 

 with black, while the prolegs on the seventh, eighth, ninth, tenth and 

 eleventh segments have a few hairs scattered over the surface. In 

 about six hours after hatching, the body of the caterpillar changes to 

 smoky brown, and the legs to sordid white. 



In four days after hatching they molt, after which they are about 

 one-fifth of an inch in length ; the head remains the same in form and 

 color as before molting, but the body changes to a burnt-sienna color 

 with all of the tubercles and most of the hairs black, and the prolegs 

 are irregularly marked with black. 



In five days more they molt a second time, after which their length 

 is a little over one-third of an inch. The head is small, somewhat 

 flattened, and shining black, with a few dark hairs scattered over the 

 surface. The general color of the body is shining dark brown, and 

 a cluster of diveigiug, dark, spine-like hairs arises from the tubercles. 

 The lateral tubercles on the second segment are very large. The 

 hairs arising from the tubercles on the second and thirteenth seg- 

 ments are quite long, while those on the tubercles along the sublat- 

 eral and stigmatal lines are long and of a whitish color. The dorsal 

 line is yellowish brown and very much broken, giving the appearance 

 of a large spot on each segment. The lateral lines are dull yellowish 

 white. 



Eleven days later the third molt occurs, after which the length is 

 half an inch. The head is of medium size, black, with short, brown- 

 ish white hairs. The general color of the body above is velvety 

 black, with large hemispherical, slate gray tubercles with numerous 

 small black tubercles over the surface, and from each of these small 

 tubercles arises a cluster of short brownish white hairs mixed with a 

 few black ones. The dorsal line is pale ochraceous reddish, enlarged 

 into small grayish spots on the middle of the sixth, seventh and 

 eighth segments ; while on the ninth, tenth and eleventh segments 

 are larger oi-ange colored spots. On each side of the dorsal line, on 

 the front edge of the fifth, sixth, seventh and eighth segments, is a 

 small light yellow tubercle. The lateral line is pale yellow and below 

 this the surface is ashy, mottled with dark brown. 



