Insect Study 



369 



How long are the antennae ? 



For what are 



are there ? Where are they ? 

 they used? 



5. How does a grasshopper eat? Do the jaws move up and down or 

 sidewise? What does the grasshopper eat? How many pairs of palpi 



can you see connected with the mouth- parts? 



How are these used when the insect is eating? 



When there are many grasshoppers, what 



happens to the crops? 



6. What do you see just back of the grass- 

 hopper's head, when looked at from above? 



7. Can the grasshopper fly as well as 

 jump? How many pairs 



Long horned, or meadow, 

 grasshopper. 



wings has it? 



Does 



Front leg of katydid, 



showing ear near elbow. 



Comstock's Manual. 



Wing oj male and of female 



meadoiv grasshoppers. 



Comstock's Manual. 



and find the ear on the 

 the abdomen. 



9. If you seize the grasshopper how 

 does it show that it is offended? 



10. How does the grasshopper per- 

 form its toilet? Describe how it cleans 

 its antennae, face and legs. 



11. What becomes of the grasshop- 

 pers in the winter ? Where are the eggs 

 laid ? How can you tell a young from a 

 full-grown grasshopper? 



12. Do all grasshoppers have anten- 

 nae shorter than half the length of their 

 bodies ? Do some have antennas longer 

 than their bodies? Where are the long- 

 horned grasshoppers found ? Describe 

 how they resemble the katydids in the 

 way they make music and in the position 

 of their ears. 



Supplementary reading — Chapters 

 XVI-XVIII in Grasshopper Land, Morley. 



of 



it use the first pair of 

 wings to fly with ? How 

 does it hold them when 

 flying? Where is the 

 lower or hind pair of 

 wings when the grass- 

 hopper is walking? How 

 do they differ in shape 

 from the front wings? 



8. Note the abdomen. It is made of many 

 rings or segments. Are these rings continuous 

 around the enti ebody? Where do their breaks 

 occur? Describe the movement of the abdo- 

 men as the insect breathes. Can you see the 

 spiracles or breathing pores? Lift the wings, 

 first segment of 



Short-horned and long-horned, 

 or meadow, grasshoppers. 



