﻿I 
  

  

  REPORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  I9OO 
  IO47 
  

  

  EXPLANATION 
  OF 
  PLATES 
  

  

  PLATE 
  i^t 
  

  

  Gipsy 
  moth 
  

  

  PORTHETRIA 
  DISPAR 
  Linn. 
  

  

  FIG. 
  

  

  1 
  Female 
  with 
  wings 
  expanded 
  

  

  2 
  Female 
  in 
  resting 
  position 
  

  

  3 
  Male 
  with 
  wings 
  expanded 
  

  

  4 
  Male 
  in 
  resting 
  position 
  

  

  5 
  Pupa 
  

  

  6 
  Dorsal 
  view 
  of 
  one 
  of 
  the 
  larger 
  caterpillars, 
  presumably 
  a 
  female 
  

  

  7 
  Dorsal 
  view 
  of 
  one 
  of 
  the 
  smaller 
  full-grown 
  caterpillars, 
  presumably 
  

  

  a 
  male 
  

  

  8 
  Egg 
  cluster 
  on 
  a 
  piece 
  of 
  bark 
  

  

  9 
  A 
  few 
  eggs 
  greatly 
  enlarged 
  

   10 
  One 
  egg 
  still 
  more 
  enlarged 
  

  

  PLATE 
  2& 
  

  

  Palmer 
  worm 
  

  

  Ypsolophus 
  pometellus 
  Harris 
  

  

  FIG. 
  

  

  1 
  Full-grown 
  larva, 
  much 
  enlarged 
  

  

  2 
  Pupa, 
  much 
  enlarged 
  , 
  

  

  3 
  Typical 
  form 
  of 
  moth 
  enlarged 
  

  

  4 
  Form 
  of 
  moth 
  described 
  asY. 
  contubernalellus 
  

  

  5 
  Apple 
  twig 
  showing 
  skeletonized 
  and 
  dried 
  leaves 
  and 
  the 
  irregular 
  

  

  holes 
  eaten 
  in 
  the 
  fruit 
  

  

  6 
  Pupa 
  natural 
  size 
  

  

  7 
  A 
  parasite, 
  Dioctes 
  (Limneria) 
  salicicola 
  Ashm. 
  

  

  8 
  Cocoon 
  of 
  same 
  

  

  PLATE 
  3 
  

  

  Diagram 
  of 
  experimental 
  orchard, 
  showing 
  location 
  of 
  trees, 
  their 
  size, 
  

   ■variety 
  and 
  degree 
  of 
  infestation. 
  

  

  PLATE 
  4 
  

  

  A 
  very 
  badly 
  infested 
  Howell 
  peartree 
  after 
  it 
  had 
  been 
  treated 
  with 
  

   undiluted 
  kerosene, 
  two 
  views. 
  

  

  PLATE 
  5 
  

  

  Shows 
  the 
  harmlessness 
  of 
  20% 
  kerosene 
  emulsion, 
  both 
  trees 
  are 
  in 
  

   full 
  bloom. 
  

  

  a 
  Reproduced 
  through 
  the 
  courtesy 
  of 
  the 
  secretary 
  of 
  the 
  Massachusetts 
  state 
  board 
  of 
  agri* 
  

   'Culture. 
  

   b 
  Executed 
  from 
  nature, 
  under 
  the 
  author's 
  direction, 
  by 
  L. 
  H. 
  Joutel. 
  

  

  