INSECTS. 141 
and dark brown or black. The hind wings are 
of a paler shade, with a broad, blackish outer 
band enclosing a pale spot toward the apical 
portion. 
Comstock states that there are five broods of 
this insect in a season in the South, while in 
the latitude of Missouri, Southern Illinois and 
Virginia, Riley thinks there are but three. 
The adult insect deposits its eggs in the tip 
of the ear, among the silk. After hatching the 
larvee feed until about one-third grown, when 
they begin to tunnel through the kernels under 
the husks toward the butt of ear. In Tennessee 
the writer was unable to grow sweet corn suc- 
cessfully owing to the ravages of this pest. 
The grown worm is about one and one-fourth 
inch long, rather robust, tapering toward the 
head. In color the worms vary from pale 
green to dark brown. There are several black, 
shining, elevated tubercles on each segment, 
each bearing a short brown hair. 
The full-grown larve make a round hole in 
the earth, the inside walls of which they 
cementover. Atthe bottom of these chambers 
these larve change to pupw, where they pass 
the winter. 
It is recommended to plow in the fall, thus 
throwing up these chambers and subjecting 
the pupe to winter exposure and destroying 
