﻿ILLUSTRATIONS. 
  

  

  The 
  illustrations 
  in 
  this 
  edition 
  are 
  nearly 
  all 
  identical 
  with 
  

   those 
  used 
  in 
  the 
  edition 
  of 
  1900, 
  and 
  there 
  acknowledged 
  in 
  

   detail. 
  A 
  very 
  few 
  have 
  been 
  omitted 
  and 
  substituted 
  by 
  better 
  

   figures 
  obtained 
  from 
  the 
  United 
  States 
  Department 
  of 
  Agricul- 
  

   ture, 
  Division 
  of 
  Entomology. 
  A 
  very 
  few 
  have 
  been 
  drawn 
  for 
  

   this, 
  work 
  by 
  Mr. 
  John 
  A. 
  Grossbeck, 
  and 
  these 
  in 
  general 
  bear 
  

   his 
  initials. 
  

  

  54 
  IN 
  (849) 
  

  

  