THE BUTTERFLY HUNTERS. 1 53 



the worms in a box of earth, and in that way allowing 

 the chrysalis to come out of the ground at its own time. 

 You will find the worms of the Imperialis moth on Button- 

 wood-trees. These worms are several inches long and of 

 a greenish color, with a red tint along the back. The 

 head and legs are pale orange. If you catch them about 

 the first of September, which is near the time they are 

 ready to go into the ground, they will take kindly to your 

 box of earth, and your experiment will probably be suc- 

 cessful. The moth of the Dryocampa Imperialis expands 

 about five inches. It is of a delicate yellow color, sprinkled 

 with purple dots. Across each wing is a wavy band of 

 purple. The body is the same color as the wings, yellow 

 dotted with purple. 



"I have told you that this section of Lepidoptera is 

 divided into two grand classes, — Moths and Hawk-moths. 

 I have described to you some of the largest of the Moths, 

 and will now tell you about a few belonging to the other 

 division. The Hawk-moths are almost all of them large 

 and clumsy, but for all that they are frequently called 

 Humming-bird moths, from the loud humming sound they 

 make in flying, and because they hover over flowers in 

 the same manner as humming-birds, while taking their 

 food. These moths generally appear at twilight, before it 

 has grown very dark. The caterpillars of the Hawk-moths 

 crawl into the ground for transformation, and the pupa 

 remains there through the Winter. 



