NINTH REPORT 
OF THE 
STATE ENTOMOLOGIST 
(Walsh, 1. LeBaron, 4. Thomas, 4.) 
ON THE 
NOXIOUS AND BENEFICIAL INSECTS 
OF THE 
STATE OF ILLINOIS, 
Foukth Annual Repoet 
BY CYRUS THOMAS, PH. D., 
STATE ENTOMOLOGIST. 
SPRINGFIELD: 
Weber & Co., State Printers, 
1880. 
