102 ENTOMOLOGICAL NEWS [Mar., 'lO 



family and starting at the outer edge of the leaves they gradu- 

 ally eat inward toward the midrib. 



July 16, 1909. Eight days after hatching the larvae have 

 moulted for the first time. They are now about half an inch 

 long and quite slender, and of a dark velvety-brown color, with 

 four tubercles surmounted with whitish hairs on each segment. 

 The props are of the same color as the back. The legs are 

 whitish, and the anal shield dark brown. They devoured all 

 their skins excepting the heads. 



At this stage of the larva's development it was discovered 

 that if the larva's setae accidentally come in contact with the 

 tender portion of the skin, that a pronounced stinging sensation 

 is felt, followed by a slight reddening of the same. 



July 24, 1909. On the sixteenth clay the larvae have moulted 

 for the second time. They now appear about the same as be- 

 fore, but are considerably longer. Their heads are now 

 brownish-red instead of black, and each segment has become 

 covered with minute yellow dots. They again ate most of 

 their skins. 



July 31, 1909. On the 23d day the larvae have moulted for 

 the third time. They are now over an inch long, but still quite 

 slender. Their heads are now red, their bodies black, with 

 numerous bright yellow spots, and there are now 6 tubercles on 

 each segment surmounted with white setae, thus giving them a 

 red and black banded appearance. The props, legs, abdomen 

 and anal shield are brownish-red. 



August 7, 1909. On the thirtieth day the larvae have stop- 

 ped eating, and have begun moulting for the fourth time. 

 They are now about 2 inches long and quite slender, but show 

 no other marked change. 



August 14, 1909. Thirty-seven days after hatching the lar- 

 vae are now moulting for the fifth time. They are now about 

 3 inches long and much thicker, but otherwise their appear- 

 ance has changed very little. 



August 20, 1909. After a couple days' abstinence from food 

 the larvae have begun spinning their cocoons. These are 

 smaller than the original ones, and not nearly as heavily or 

 compactly built. 



