FIFTEENTH REPORT 
OF THE 
STATE ENTOMOLOGIST 
ON THE 
NOXIOUS AND BENEFICIAL INSECTS 
OF THE 
STATE OF ILLINOIS. 
l- 
FOURTH REPORT OF S. A, FORBES, 
For the Years 1885 and 1886. 
SPRINGFIELD, ILL.: 
Springfield Printing Co., State Printers 
1889. 
