CLASSIFICATION 5 1 



(2) This specimen and others with similar outer wings 

 belong to the order Hemiptera. Can you tell why? Is it 

 an appropriate name? 



Habits. — What animal similar to this is a pest to the 

 farmers? How does it injure crops? Name other examples 

 of bugs that are injurious to people. 



Are squash bugs very abundant? What do they depend 

 upon for protection ? Have you ever seen them eating ? Are 

 they difficult to find ? Do you think they possess much intel- 

 ligence? Why? How do they spend the winter? 



What measures could be used to prevent the ravages of 

 the chinch bug. 



Classification — Adapted from Comstock. — All bugs belong to 

 the Order Hemiptera. The Order is divided into two great greups, 

 Heteroptera and Homoptera. 



Principal Families of Heteroptera, 



A. Antennae shorter than the head, and nearly or quite concealed 



in a cavity beneath the eyes. 



B. Hind tarsi without claws. 



C. Fore tarsi flattened with a fringe of hairs on the edge, and 



without claws; head overlapping the prothorax -... .Cormdo^. 



CC. Fore tarsi of the usual form, and with two claws; head 



inserted in the prothorax Notonectidae. 



BB. Hind tarsi with two claws. 

 C. Caudal end of the abdomen furnished with a respiratory 

 tube composed of a pair of grooved, threadlike organs. 



Nepidae. 

 CC. Caudal end of abdomen without respiratory tube. 

 D. Legs flattened, fitted for swimming; caudal end of the 

 abdomen furnished with a pair of straplike appendages 

 (these appendages are retractile, and are frequently with- 

 drawn from sight) Belostomidae. 



