110 ELEMENTARY LESSONS ON INSECTS 



that have given us the name of chrysalis for it. Oftener the 

 pupa is formed in the seclusion of a protective cocoon and is 

 plain and brown in color. Always it is much less active than 

 the pupa of a caddisfly. Generally the appendages that en- 

 wrap the body are all sealed down tightly to it, only the tip 

 of the abdomen remaining freely movable. The same parts 

 already discussed for the caddisfly pupa — the parts of the 

 adult that is to be — are readily recognizable in it. 



LESSON 10 



Butterflies and Moths 



WORK PROGRAM 



1. In some cabbage patch collect all stages of the cabbage 

 butterfly: adults from the air, eggs and larvae from the 

 cabbage leaves, and pupae from neighboring posts and 

 walls. 



2. Bring in some well grown larvae alive and rear them in 

 closed jelly tumblers, cleaning the glass and adding fresh 

 cabbage leaves daily until they transform to pupae. This 

 they will usually do on the underside of the tin lid. Then 

 keep the pupae until the butterflies emerge. Sometimes 

 a lot of small winged parasites will issue instead ; but this 

 will equally well illustrate another great natural phenome- 

 non: Nature's method of control. 



