34 A GUIDE FOR THE STUDY OF ANIMALS 



3. What is the position of the wings when at rest? 

 What is the texture {e.g. thick, smooth, leathery, shell- 

 like, membranous) of the fore and hind wings ? 



4. For what kind of locomotion are the legs fitted ? 

 How? 



Sense Organs. 5. How many antennas has the insect? 

 What is their character as to shape and length? How 

 many simple and compound eyes ? 



Feeding. 6. What is the food of the insect ? How are 

 the mouth parts specially adapted to obtaining this food ? 



AToie. — The mouth parts of insects may be jaws for biting, or may 

 form a tube for sucking, or a beak for piercing and sucking. 



Respiration. 7. Look for movements of the body indi- 

 cating breathing, and describe what you iind. Discover 

 the location of the spiracles. 



Protection. 8. What are the enemies of this insect ? 

 (Among the most important enemies of insects are birds, 

 certain other insects, and various small vertebrates such as 

 frogs, snakes, lizards, turtles, etc.) How does the insect 

 protect itself from these enemies ? 



9. Describe the shell with respect to thickness and flex- 

 ibility. What is the character of the surface as to rough- 

 ness or smoothness or covering of hairs or scales ? 



Reproduction and Development. Note. — It may be necessary to get 

 answers to these questions from books. 



10. Where are the eggs deposited ? What is the number of the 

 eggs ? How soon do they hatch ? 



1 1 . What is the food of the larva or nymph ? Are the food habits 

 of the insects harmful to man ? If so, how ? 



12. Describe the larva as to form, color, and appendages. Is it ca- 

 pable of locomotion ? 



13. Is the metamorphosis complete or incomplete? If complete, 

 describe the pupa and tell where it may be found. 



