IjO INSECT LIFE. 



branch bearing a tent, and tie it to a branch of another 

 tree of the same kind in a convenient place. 



6. Describe the position, form, and structure of 

 one of these tents. Of what is it made ? Where 

 does the substance of which it is made come from ? 

 How is the tent held in place? How is it increased 

 in size ? Make a picture of a tent. 



7. Describe one of the caterpillars that lives in 

 this tent (see page 325). 



8. Upon what do the caterpillars feed? At what 

 time of the day do they feed? How far do they go 

 for their food ? 



9. Are the paths over which the caterpillars go to 

 and from their food marked in any way ? If so, how ? 



10. The way in which this pest is usually fought 

 is by destroying the caterpillars in their tents. Can 

 this be done better at one time of day than another? 

 If so, when? 



11. Search for the remains of the cluster of eggs 

 from which a colony of tent-caterpillars have hatched. 

 Carefully describe this cluster. Make a picture of it. 

 Preserve the specimen for your collection. 



12. Put a branch of the kind of tree upon which 

 the caterpillars are feeding in water in a breeding 

 cage. Select a branch which bears many leaves. 

 Place fifteen or twenty caterpillars on this branch, in 

 order to keep them confined, and thus be able to 

 observe their transformations. Put fresh branches 

 in the cage when necessary to keep the larvas sup- 

 plied with food. 



13. What do the caterpillars do when full grown? 

 Observe their actions in your breeding cage and in 

 the field. 



