60 
more acute, and surrounded by a ring of sparse sette. The head, 
thorax, and wing-pads are dark, the abdomen lighter brown. Eyes 
in mature pupae black, and distinctly visible. On the abdomen are 
several rows of setae, as follows: a double row on the side, above 
the spiracles, placed in pairs; a single row just below the spiracles 
and close to them; another double row on each side of the middle 
line of the body, tbe outer bair of each pair being on the posterior 
part, and the inner one on the anterior part of the segment. There 
are two long, slender, conspicuous bristles on the segment im¬ 
mediately behind the head. 
Tbe adult (Fig. 2, a), familiar to most elevator men, is a 
delicately built, small moth, with a quick wavering flight, which 
may be seen in infested rooms resting on bags of grain, walls, 
windows, or the like. It is about three eighths of an inch long, and 
grayish clay-yellow when at rest, but with hind wings dark grayish 
or neutral gray, and bordered with close, exceedingly delicate, 
silvery fringes. Each fore wing bears a black dot between its base 
and its middle. 
LIFE HISTORY 
When bred indoors the generations of this insect become con¬ 
tused, all stages being represented at once; but in tbe field there 
are two generations, which become adult in May or June and in 
August respectively. Where ear corn is infested in the crib the eggs 
are placed in the groove of the kernel on the ear, usually beneath 
the membrane which ensheathes the tip of each kernel. Wheat 
may become infested by the second brood of motbs either thru eggs 
laid in the field on the grain in the head or else after storage in the 
granary, and a generation may develop from these eggs within 
five or six weeks. If an infestation begins in the field and the 
infested grain is carried to tbe granary, the moths come to maturity 
and continue to breed in the stored grain as long as the weather 
will permit; and the same is true, of course, if the grain is first 
infested after it has been stored. If tbe temperature of the store¬ 
house is kept up by artificial heat, as in some warehouses, develop¬ 
ment may be continued thruout the winter; otherwise the female 
may deposit from sixty to ninety eggs, which hatch, as a rule, in 
from four to ten days, according to temperature. 
DISTRIBUTION, INJURIES, AND ENEMIES 
This moth, first noticed in France, is widely distributed in the 
United States and Europe. In this country it is most abundant in 
the southern states and where artificial heat promotes its multiplica¬ 
tion in the northern granary. 
Wheat may be as badly infested by this moth as corn, the heart 
of each grain being eaten out. Other cereals are injured less com- 
