Stored-Grain Pests. 25) 
by having the thorax al- 
most square in shape and 
lacking the sawtoothlike 
projections. (Fig. 41.) 
This beetle is chiefly 
abundant in the South, 
where it is found in great 
numbers outdoors infest- 
ing the seed pods of a 
great variety of plants. 
It is one of the most 
common beetles in stored 
corn in the South and in 
‘the cornfields is always 
to be found on damaged 
or exposed ears. The 
immature stages closely 
resemble those of the 
preceding species both in 
form and in habit. The 
larvee have the bad habit 
of devouring the germ of 
the seed in which they 
breed. They can develop 
from egg to adult in 
about three weeks. 
FOREIGN GRAIN 
BEETLE.” 
The foreign grain bee- 
tle is a small reddish 
brown beetle somewhat 
similar in appearance to 
the preceding species, to 
which it is closely re- 
lated. It differs from it 
by being smaller and 
more robust. (Fig. 42.) 
Although of world-wide 
distribution, it is of little 
consequence as an enemy 
of stored grains. 
in clean grain. 
2 Qathartus advena Waltl. 
¢. 
= : 
Hie 
Fig. 38.—Ear of corn infested by the Angoumois 
grain moth (round holes in kernels) and the 
ecadelle. The elongated slits in the kernels are 
characteristic of cadelle feeding and emergence. 
Only ear corn stored for several years will develop 
this evidenee of cadelle attack. 
It is attracted to damp and moldy grains and 
feeds on the molds developing in such grains. 
It is rarely found 
