Teachers' Leaflet. 



577 



LESSON XXXVIII. 

 THE PUPA AND COCOON. 



Purpose. — To make the pupils acquainted with the woolly bear in its 

 quiet stage. 

 Observations. — 



#1. How does the woolly bear make its cocoon? 

 ^ 2. Of what material? 



3. When is the cocoon made? 

 4. How does the woolly bear get into the 



Cocoon of ivooly-hcar. 



cocoon ? 



5. What happens to the woolly bear inside the 

 cocoon ? 



Facts for teacher. — Normally the woolly bear does not make its cocoon until 

 April or May. It finds some secluded spot and curls up in safety during the 

 winter, and when warm weather comes on it makes its cocoon by spinning silk 

 about itself. In this silk is woven the hairs which it sheds easily at this time so 

 that the whole cocoon seems made of felt. Of course, the caterpillar does not get 

 into the cocoon but is always in it as it weaves it about itself. One cocoon should 

 be cut open so as to show the little pupa inside. It will interest the children to 

 see how such a large, furr3' caterpillar can become such a little smooth pupa. 

 Sometimes when the caterpillars are kept in a warm room they make their 

 cocoons in the fall, but this is not natural. 



LESSON XXXIX. 



THE ISABELLA TIGER :M0TH. 



Purpose. — To make the pupils 

 familiar with the woolly bear in its 

 winged form. 



O hservations. — 



1. Where did the moth come 

 from ? 



2. How did it get out of the 

 cocoon? Where is the pupa case? 



3. AMiat is the color of the moth 

 and how is it inarked? 



4. Are the front and hind wings 

 the same color? 



5. What are the marks on the 

 body ? 



6. What is the color of the legs? 



7. What will the mother moth do ? 

 Facts for teacher, — The issuing of the 



moth from the cocoon is an interesting 

 thing to watch during the last of May. 

 The moth is in color dull, grayish, tawny 

 19 



Woolly-hear moths, the male above 

 and female below. 



