8o 



ajv economic entomology. 



packet, which is tucked away under the fore-wings by means of 

 the anal forceps. Some of the species, however, lack the wings 

 entirely, in which case the peculiar anal forceps and the beetle- 

 like form distinguish them quite readily. 



Fig. 45. 



Cases or caddices, made by the larvae of Trichoptera, illustrating dilTerences of shape 

 as well as varieties of material used. 



Except in the South, ear-wigs are rare in the United States, 

 and not injurious. In parts of Europe and in sub-tropical and 

 tropical countries they are sometimes abundant and frequently 

 annoying, eating at night into flowers in which they hide during 

 the day. In vine- and flower-covered houses or arbors they are 

 sometimes a nuisance, and their long, slender form and nocturnal 

 habits have given rise to the unfounded belief that they crawl 

 into the ears of sleepers and kill them. The female lays a small 

 number of eggs only, and broods over or watches them until 

 some little time after they are hatched. 



The more typical Orthoptera may be conveniently divided 

 into series by their leg structure and method of locomotion, as 

 follows : 



