Il8 INSECTS INJURIOUS TO VEGETABLES 



the garden llea-hopper (Halticus nlilcri Giard) lives in great 

 numbers on the leaves, puncturing them so as to cause the death 

 of the tissues in small irregular white patches. In its snort- 

 winged form (fig. y2, a) it resembles the black flea-beetles, which 

 affect potato, alike in appearance, in the nature of its work. 



Fig. 72.— Garden flea-hopper, o. Brachypterous female; i>. full-winged female All 

 much enlarged. (Author's illustration U. S Dept. Agr.) 



and in its saltatory power. Other food plants include potato, 

 pumpkin, cabbage, ornamental plants, clover and many weeds. 

 Remedies are the same as for leafhoppers. Beans, peas and 

 other plants subject to injury should not be planted in or near 

 old clover fields. 



Nuttall's Blister Beetle (Caiitharis nuttalli Say). — Blister 

 beetles do much injury to leguminous food crops and are par- 

 ticularly harmful to beans and peas. Nuttall's blister beetle is a 

 large and beautiful insect, variable both in color and size (fig. 

 73). It is bright metallic green, the head and thorax have 

 usually a coppery luster, and the wing-covers are often purple. 

 It varies from a little over half to nearly an inch. Its habitat 

 extends from the northern Mississippi valley region to the 

 Rocky Mountains, and it is abundant from South Dakota to 

 the northwest territories of Canada. It is related to the Spanish 

 fly, the Cantharis vcsicatoria or cantharides of commerce, has 



