INSECTS INJURIOUS TO SWEET CORN 



211 



fully about an inch and a half. The moth has brown fore- 

 wings, tinged with reddish or purplish, and marked as figured 

 (fig. 134, a). In addition to corn and cereals, this species 

 affects cabbage, turnip, pea, carrot, tomato, celery, rhubarb and 

 other vegetables. 



Cutworm remedies are discussed on page 54. 



Fig. 134.— Spotted cutworm, a, Moth; 6. larva. Somewhat enlarged 

 (Author's illustration) 



Flea-beetles. — A considerable number of flea-beetles are com- 

 monly found on corn, but of these the two species mentioned 

 below are more particularly attached to this crop. All species 

 are most troublesome on young plants. 



The brassy flea-beetle (Chcctocnema puli- 

 caria Mels.). Injury to sweet corn by flea- 

 beetles is sometimes complicated by the 

 presence of two species. The present is 

 the more abundant of the two in most 

 localities, and as it is considerably smaller, 

 it is probable that it is usually the cause of 

 the trouble attributed to it. It measures 

 less than one-twentieth of an inch, and is 

 of oval, convex form, with shining surface, 

 having a faint greenish-bronze lustre. The 

 legs are usually brownish testaceous, and 

 the thorax bears little trace of polish (fig. 135) 



Fig. 135.-Brassy flea- 

 beetle. For size see line 

 at right. (Author's illus- 

 tration, U.S.Dept.Agr.) 



