69 ’ 
rectangular, yellowish spots above, margined with the white of the 
general body-color. On the thorax and anterior abdominal seg¬ 
ments, a white line divides the rectangles into squares. The pupa 
is white, and is occasionally inclosed within a delicate cocoon com¬ 
posed largely of particles of the food substance. From five to seven 
generations of this species may be developed within a single year, 
the number depending, as usual, upon the temperature and upon 
the supply of food. The beetles infest almost anything of a veg¬ 
etable nature used as human food, including preserved fruits and 
various cereals, bread, nuts, seeds, red pepper, yeast, spices, sugar, 
flour, and also tobacco and snuff. 
This beetle is widely distributed, and virtually cosmopolitan in 
its range. At the Columbian Exposition in 1893 it was found in 
exhibits of food products from Brazil, Argentina, Paraguay, 
Trinidad, Mexico, Greece, Italy, Tunis, Liberia, and Java. It is 
generally distributed in North America. 
The Granary Weevil 
(Calandra gvanaria Linn.J 
Corn or wheat, the kernels of which contain a small, fat, leg¬ 
less, whitish grub, somewhat like those commonly found in nuts, 
but of much smaller size, is infested either with this insect or the 
closely related rice-weevil, next discussed. The beetle (Fig. 10) 
is about an eighth of an inch long, ovate, convex, and uniformly 
chestnut-brown, the thorax with elongate punctures in more or 
less definite lengthwise rows, and the wing-covers finely grooved 
and ridged lengthwise. The head is prolonged into a stout probos- 
Fig\ 10. Granary Weevil, Calandra granaria, adult. X 25 . 
cis-like snout bearing the elbowed antennae attached to its sides. 
The minute white egg is placed in a cavity made in a kernel of 
wheat or corn for the purpose. There is usually but a single grub 
to a grain of wheat, but there may be as many as two or 
three in a kernel of corn. As the beetles are unable to fly, 
they do not infest the ripened grain in the field. Tfiere may be 
four or five, or even more, successive generations in a year, each 
requiring about forty days for its development. As the adults 
