110 



NATURAL HISTORY OF INSECTS. 



TRIBE IV. Plant-Beetles. These are mostly small Beetles, 

 seldom exceeding half an inch in length; the antennae are 

 either filiform or slightly clavate. 



Fig. 283 



Fig. 284. 



They are usually diurnal in their habits. The Iarva3 live 

 upon or within the leaves or roots of plants; they are provided 

 with six legs, and the body is generally short and convex. 



Fig. 287. 



Fig. 288. 



These insects are all destructive to vegetation; they belong 

 to the Family of Plant-Beetles (Chrysomelidde'). The Colorado 

 Potato-beetle (Fig. 282), the Steel-blue Flea-beetle (Fig. 283), 

 the Imported Grape Flea-beetle (Fig. 284), the Cucumber and 

 Potato Flea-beetles (Fig. 285), the Striped Cucumber-beetle 



