INSECTS HEMIPTERA DIAGRAM 6. 



127 



Cicada. 



piercing the tender bark of trees, and drinking the 

 sap by means of its sucker. 



The Thrips has only wings in the males ; the 

 females are wingless. They are small insects with a 

 long body. The corn thrips causes great mischief by 

 sucking the newly-formed grains of corn, which it 

 does not kill, but prevents from reaching their proper 



size. Lately a separate order has been established ^ 



J Thrips, highly 



on this insect, but it is not yet generally adopted. magnified. 



The Bugs are a family of insects 

 which have nearly all a bad 

 odour. They live either on trees 

 or in houses. Bed-bugs are 

 remarkable because they have 

 no traces of wings, but they 

 run actively. They shun the 

 light, and at night feed on blood 

 by burying their sucker in the skin. Bug natural size, and magnified. 



The Notonectce are aquatic hemip- 

 tera, which swim by means of their 

 long hind legs. One half of their 

 elytra is hard and horny ; and these 

 insects resemble tree-bugs- in the 

 form and pattern of their corslet. Notonecta. 



