cricket might also be mentioned in this connexion, on 

 account of its underground habit of life and its manner of 

 attacking the roots of plants, although it does not actually 

 bore into the tissues, after the typical manner of borers. 



Insects which bore into the fruit are represented by the 

 cotton boll worm, corn ear worm and the larvae or maggots 

 of fruit flies. 



Insects which are injurious to stored products are the 

 meal worms, grain weevils and the cigarette beetle. Among 

 those which are known as household pests may be mentioned 

 cockroaches, crickets, ants, bed-bugs, clothes moths, 

 cigarette beetles, silver-fish and house-flies. 



The insects which attack and injure domestic animals 

 and man have come, within the last few years, to be recog- 

 nized as of great importance, many of them being known to 

 disseminate some of the most serious of diseases, and others 

 being suspected as having a possible influence in the same 

 direction. Among these may be mentioned fleas, flies, ticks, 

 lice, the mites which cause itch, mange and scab, the screw 

 worm, mosquitoes, chigoes or jiggers, bete-rouge and the 

 bed-bug. 



In order that readers of this booklet may be better 

 able to understand the insects with which thev may have 

 to deal, a short account follows of the group of animals 

 which includes insects and their nearest relations, and of 

 the natural history of insects. A brief account of the 

 orders of insects gives the characters of each Order in such 

 manner that, in general, there should be no difficulty in 

 placing the greater number of insects in their correct Order ; 

 and to aid further in this, a key is included, with directions 

 for its use. 



