191 



Fig. 190. Psylliodes convexior. 

 Length about one twelfth inch. 



primarily on smartweed and dock, but also infest a large number of 

 other plants. Chittenden* repeatedly found stragglers on growing 

 corn, but he did not see them feeding. Examples of this species and of 

 the pale-striped flea-beetle were sent 

 him by an Indiana correspondent,! who 

 charged them with injuring corn in his 

 neighborhood. On the other hand, in 

 one New York locality, serious damage 

 was done by them to pole-beans, while 

 sweet corn and other plants in the vicin- 

 ity remained exempt. 



Glyptina hrunnea (Fig. 189), a mi- 

 nute brown flea-beetle, was found in 

 considerable numbers on very young 

 corn and in the loose soil about the 

 plants May 24, near Champaign. The 

 beetles were eating holes in the leaves 

 and cutting off the central leaf. The 



injurj^ was quite noticeable, but not especially serious. This beetle 

 has been previously mentioned by usj as found in July and as being 



quite abundant in October on 

 sugar-beets in Illinois. It is 

 known to occur from Georgia to 

 Texas and Wisconsin. Its life 

 history is unknown. 



Chcetocnema parcepunctata, 

 a small brassy flea-beetle only 

 about a sixteenth of an inch 

 long, was found by Chittenden 

 feeding on corn leaves in Penn- 

 sylvania. It was not seen on 

 any other plant, and the ex- 

 tent of injury is not given. It 

 is known from Massachusetts 

 to Texas, but has not been 

 taken by us in Illinois. 



Psylliodes convexior (Fig. 

 190; PI. VIII., Fig. 3) and P. 

 punctulata (Fig. 191), two com- 

 mon flea-beetles, have been 

 taken on corn, the latter sev- 



FiG. 191. Psylliodes punctulata. 

 one twelfth inch. 



Length about 



*Proc. Ent. Soc. Wash., Vol. IIL, p. 2(56. 



tBuU. No. 33, N. S., U. S. Dept. Agr., Div. Ent., p. 113. 



tTwpnty-first Report, p. 122. 



