332 MANUAL OF VEOET ABLE-GARDEN INSECTS 



yellow, marked with three black 

 s])()ts arranged in a triangle (Fig. 

 209). The insect hibernates as a 

 beetle in sheltered places. The early 

 stages have not been described. 



The Larger Striped Flea-Beetle 



Disonycha crenicollis Say 

 Fig. 209. — The three-spotted „, . . • i tt -^ i 



flea-beetle (X 5). ihis.species occurs ni the United 



States east of the Rocky Mountains, 

 ranging from New York to Nebraska and south to ]\Iexico. 

 The beetle is about J inch in 

 length, yellow, with two black 

 spots on the prothorax and 

 has each wdng-cover marked 

 with a narrow marginal and 

 sutural, and a broader median 

 black stripe (Fig. 210). It 

 has been found on beet, melon 

 and straw^berry in Illinois. It 

 hibernates in the adult con- 

 dition and the early stages p,^. oio. _ The hxrger striped flea- 

 are unknown, beetle (X4|). 



The Sweet Potato Flea-Beetle 



Chcetocnema confmis Crotch 



Although this flea-beetle is widely distributed throughout 

 the United States east of the Rocky Mountains and has also 

 been taken in California, it has attracted most attention by 

 its injuries to the sweet potato in New Jersey. In some local- 

 ities and in certain seasons, it has proved itself the most im- 



