INJURIOUS INSECTS OF THE 

 FARM AND GARDEN. 



INTEODUCTION. 



It is not the object of this little Tolume to teach the 

 science of Entomology, or to give the life-history of in- 

 sects. It is simply intended to group together the most 

 injurious insects with illustrations, that the cultivator 

 may see, at a glance, his enemies, and learn the best 

 known methods of repelling or destroying them. Still 

 there are some points regarding their general structure 

 and changes that may be briefly stated. 



The true insects are distinguished from some related 

 animals, the crustaceans, myriapods, and others, by hav- 

 ing in their perfect state six legs (the others having 

 either more or none), and generally, though not always, 

 wings. 



The insect has three distinct parts: the liead, in which 

 are the organs of sense; the thorax, to which are attached 

 the legs and wings; and the abdomen, which contains the 

 reproductive organs. They breathe through breathing 

 holes {spiracles) placed along the sides of the body, 

 which communicate with the air tubes within. 

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