﻿REPORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  I9OO 
  963 
  

  

  society. 
  The 
  latter 
  was 
  the 
  first 
  to 
  publish 
  a 
  description 
  of 
  the 
  larva, 
  

   and, 
  as 
  the 
  wrong 
  moth 
  was 
  taken 
  by 
  him 
  to 
  be 
  the 
  parent, 
  his 
  name 
  

   could 
  not 
  be 
  retained 
  for 
  this 
  insect. 
  The 
  true 
  imago 
  would 
  also 
  have 
  

   been 
  described 
  by 
  Dr 
  Fitch 
  had 
  not 
  Dr 
  Harris 
  anticipated 
  him 
  by 
  a 
  few 
  

   days. 
  Describing 
  the 
  damage 
  in 
  1853, 
  Dr 
  Fitch 
  states 
  that 
  the 
  trees 
  

   everywhere 
  assumed 
  a 
  brown, 
  withered 
  appearance, 
  looking 
  as 
  though 
  

   they 
  had 
  been 
  scorched 
  by 
  fire. 
  He 
  was 
  also 
  of 
  the 
  opinion 
  that 
  the 
  

   widespread 
  denudation 
  of 
  forest 
  trees 
  described 
  by 
  Kalm 
  a 
  century 
  

   earlier 
  was 
  the 
  work 
  of 
  this 
  pest. 
  The 
  above 
  shows 
  most 
  plainly 
  that 
  

   the 
  insect 
  may 
  cause 
  great 
  damage, 
  and, 
  as 
  the 
  attack 
  is 
  so 
  much 
  later 
  

   than 
  that 
  of 
  several 
  of 
  the 
  worst 
  enemies 
  of 
  the 
  apple, 
  there 
  is 
  less 
  

   chance 
  of 
  the 
  tree 
  being 
  able 
  to 
  recuperate 
  the 
  same 
  season. 
  

  

  Description. 
  The 
  caterpillar 
  is 
  delicate 
  appearing 
  and 
  is 
  represented 
  

   much 
  enlarged 
  in 
  fig. 
  t 
  of 
  pi. 
  2. 
  It 
  is 
  about 
  half 
  an 
  inch 
  long 
  when 
  

   full-grown 
  and 
  is 
  then 
  usually 
  of 
  a 
  pale 
  green 
  or 
  a 
  yellowish 
  green- 
  color. 
  

   There 
  is 
  a 
  subdorsal 
  line 
  of 
  dusky 
  color. 
  The 
  head 
  may 
  be 
  either 
  yel- 
  

   lowish 
  or 
  black. 
  The 
  larva 
  is 
  quite 
  variable 
  in 
  coloring. 
  

  

  The 
  pupa, 
  pi. 
  2, 
  fig. 
  2, 
  is 
  slender 
  and 
  tapers 
  to 
  a 
  spiny 
  tip. 
  It 
  is 
  about 
  

   one 
  fourth 
  of 
  an 
  inch 
  long. 
  

  

  The 
  moth 
  is 
  quite 
  variable 
  in 
  appearance, 
  as 
  is 
  evident 
  from 
  the 
  

   number 
  of 
  times 
  it 
  has 
  been 
  redescribed 
  as 
  new 
  {see 
  Bibliography 
  

   p. 
  965). 
  Two 
  of 
  the 
  more 
  common 
  forms 
  are 
  shown 
  in 
  fig. 
  3 
  

   and 
  4 
  of 
  pi. 
  2- 
  The 
  typical 
  form 
  is 
  represented 
  in 
  fig. 
  3 
  and 
  that 
  

   described 
  by 
  Dr 
  Fitch 
  as 
  the 
  comrade 
  palmer 
  worm, 
  Y. 
  contuber- 
  

   nalellus, 
  in 
  fig. 
  4. 
  It 
  is 
  a 
  delicate, 
  little 
  creature 
  with 
  a 
  wing 
  spread 
  

   of 
  a 
  little 
  over 
  half 
  an 
  inch. 
  The 
  forepart 
  of 
  the 
  insect 
  is 
  slightly 
  ele- 
  

   vated 
  when 
  it 
  is 
  at 
  rest. 
  The 
  original 
  description 
  by 
  Dr 
  Harris 
  is 
  as 
  

   follows 
  : 
  

  

  Forewings 
  ash-gray, 
  sprinkled 
  with 
  blackish 
  dots, 
  three 
  of 
  which, 
  

   larger 
  than 
  the 
  rest, 
  are 
  placed 
  triangularly 
  near 
  the 
  middle 
  ; 
  a 
  dusky 
  

   transverse 
  band 
  near 
  the 
  tips, 
  and 
  a 
  curved 
  row 
  of 
  seven 
  black 
  dots 
  

   at 
  the 
  origin 
  of 
  the 
  terminal 
  fringe. 
  Hind 
  wings 
  dusky 
  with 
  a 
  leaden 
  

   luster, 
  black 
  veins, 
  and 
  very 
  long 
  black 
  fringes. 
  Body 
  and 
  legs 
  beneath 
  

   yellowish 
  white, 
  with 
  a 
  luster 
  of 
  satin. 
  Length 
  from 
  the 
  forehead 
  to 
  

   the 
  end 
  of 
  the 
  closed 
  wings 
  j-^ 
  of 
  an 
  inch. 
  Expansion 
  of 
  the 
  wings 
  f 
  

   of 
  an 
  inch. 
  

  

  Life 
  history. 
  Not 
  much 
  has 
  been 
  recorded 
  concerning 
  the 
  life 
  his 
  

   tory 
  of 
  this 
  species. 
  The 
  eggs 
  are 
  unknown. 
  The 
  caterpillars 
  are 
  

   usually 
  first 
  Seen 
  about 
  June 
  8 
  and 
  disappear 
  in 
  early 
  July. 
  The 
  little 
  

   pests 
  evince 
  a 
  preference 
  for 
  the 
  more 
  tender 
  leaves 
  and 
  shoots 
  and 
  they 
  

   are 
  very 
  active 
  when 
  disturbed. 
  They 
  may 
  usually 
  be 
  found 
  under 
  a 
  

   few 
  threads 
  of 
  silk 
  or 
  in 
  a 
  sheltering 
  fold 
  of 
  a 
  partly 
  eaten 
  leaf 
  or 
  between 
  

  

  