The Chinch Bug and Its Control. 5 
tive outbreaks occur are: Texas, Arkansas, Oklahoma, Kansas, Ne- 
braska, Wisconsin, Iowa, Minnesota, Illinois, Missouri, Kentucky, 
Indiana, Ohio, South Carolina, North Carolina, and Virginia. In 
the following localities in the mountain district it is known to be 
present, but does not occur in destructive numbers: New Mexico and 
Arizona; California, in the Sacramento, San Joaquin, and southern 
Imperial Valleys; and Washington. It has recently been reported 
from the Missouri River Valley in northeastern Montana. It has 
been found in Connecticut, Maine, Massachusetts, Tennessee, South 
Dakota, Louisiana, Florida, New Jersey, Pennsylvania, and New 
York. It has also been discovered in places in the West Indies, 
Cuba, Panama, Guatemala, Lower California, Mexico, Cape Breton, 
and Canada. 
Fig. 1.—Map showing distribution of the chinch bug and areas most often devastated by it. 
HOW TO KNOW THE CHINCH BUG. 
THE ADULT. 
The full-grown or adult chinch bug (figs. 2, 7; 3) is the first form 
of this insect to be found in the spring. At first very few are seen, 
as they resume activity gradually, leave their winter quarters, and at- 
tack the growing crops. They fly and crawl to the young wheat and 
may be found well down in the wheat stools almost any time during 
April and May. 
Two forms of adult occur, one having short wings which reach 
only from one-half to two-thirds the length of the abdomen, the 
