388 



LEPIDOPTERA 



found on apple, cherry, and plum trees, and on currant and 

 barberry bushes in July and August. When young it is 

 of a deep yellow color, with rows of minute black warts on 

 its back. It comes to its full size by the first of September, 



Fig. 183. 



and then measures three inches or more in length, and is 

 thicker than a man's thumb. It is then entirely of a fine, 

 clear, light green color ; on the top of the second ring are 

 two large globular coral-red warts, beset with about four- 

 teen very short black bristles ; the two warts on the top 

 of the third ring are like those on the second, but rather 

 larger ; on the top of the seven following rings there are 

 two very long egg-shaped yellow warts, bristled at the end, 

 and a single wart of larger size on the eleventh ring ; on 

 each side of the body there are two longitudinal rows of 

 long light blue warts, bristled at the end, and an additional 

 short row, below them, along the first five rings. This cat- 

 erpillar does not bear confinement well ; but it may be seen 

 spinning its cocoon, early in September, on the twigs of the 

 trees or bushes on which it lives. The cocoon (Fig. 184, 



Fig. 184. 



Fig. 185, pupa) is fastened longitudinally to the side of a 

 twig. It is, on an average, three inches long, and one inch 



