﻿TWENTY-FIRST 
  REPORT 
  

  

  STATE 
  ENTOMOLOGIST 
  

  

  Noxious 
  AND 
  Beneficial 
  Insects 
  

  

  STATE 
  OF 
  ILLINOIS 
  

  

  TENTH 
  REPORT 
  OF 
  S. 
  A. 
  FORBES 
  

  

  CHICAGO 
  

  

  Hack 
  & 
  Anderson 
  

  

  Printers 
  

  

  1900 
  

  

  