18 Farmers’ Bulletin 1260. 
RICE MOTH” 
The rice moth has a wing expanse of about half an inch and is of a 
pale grayish brown or tawny color. Its characteristic appearance 
is shown in figure 24. The larva (fig. 25) resembles somewhat that 
of the Indian meal moth, being when full grown about half an inch 
Fig. 20.—The pink cornworm: Full-grown larva, side view, greatly enlarged. 
When full grown the larva is pink and about five-sixteenths of an inch long. 
(Chittenden. ) ' 
long and varying in color from white to a dirty, shghtly bluish gray 
with occasional tints of green. Damage by the pest, as in the case 
of all moth pests, is done by the larve, which feed upon rice, cocoa, 
chocolate, ships biscuits, ete. The larve produce a dense webbing 
as they become well grown. When feeding upon grains they spin 
dense silken tubes, webbing the grain kernels. into the walls of the 
tubes. The pupa is shown in figure 26.. The rice moth is seldom 
found in this country and has not 
become very widely disseminated. 
FLOUR MOTHS. 
Among the flour moths are some 
of the commonest and most serious 
pests of grain products. They are 
designated as flour moths not be- 
cause they feed entirely upon flour 
or milled products, but because they 
seldom attack sound grain kernels. 
They prefer broken grains, grains 
injured by major grain pests, and 
more especially cereal milled prod- 
IG, 21.—The pink cornworm: Pupa, ucts such as flour, breakfast foods, 
Nene view at ant eteral Few yeas, ete, All three of the flour 
moths are commonly found in grain 
warehouses, but the Indian meal moth and the meal snout moth are 
probably the most frequently reported. These two moths may, under 
specially favorable conditions, become established in whole grain 
and other seeds and cause injury especially by eating out the germ. 
1 Coreyra cephalonica Staint. 
