160 PESTS OF GARDEN AND FIELD CROPS 
The larve of this species feed 
on the leaves. They are one 
fourth inch long when mature, 
} 
nie) Flea-beetl 
Fic. 169.— The ] 
size. Original. 
Enlarged and nat 
o 
rather thick bodied, grayish in 
color or sometimes dark purplish. 
Fic. 168.— Work of the Spinach 
I eres On each segment are rows of 
Flea-beetle. Original. g 
raised tubercles. There are two 
broods in the course of the summer, the adults hibernating. The 
use of Paris green to poison the larve and adults, and the destruc- 
tion of weeds in the fall and 
spring, are the remedies. 
The Triangular Flea-beetle 
(Disonycha triangularis Say) 
is about the same size as the 
preceding, and has the same 
feeding habits. Its thorax is 
marked with three black dots 
arranged in the form of a tmr- 
Fic. 170.—The Triangular Flea-beetle. 
: : ! angle. 
Enlarged and natural size. Original. 
The life history is similar 
to that of the preceding, and the same remedies will apply. 
