LETTER OF TRANSMITTAL. 
Office of State Entomologist, 
Champaign, III., Dec. 20, 1890. 
To his Excellency , Joseph W. Fifer, Governor of the State 
of Illinois. 
Sir: I have the honor to transmit herewith my sixth report 
as State Entomologist of Illinois,—the seventeenth of the 
series from the office,—presenting such part of the results of 
our work during the years 1889 and 1890 as are now in con¬ 
dition for final report. 
Respectfully submitted, 
S. A. Forbes, State Entomologist. 
