﻿REPORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  24I 
  

  

  the 
  bark." 
  The 
  egg 
  is 
  deposited 
  on 
  the 
  trunk 
  at 
  various 
  heights 
  from 
  

   the 
  ground 
  upward 
  to 
  at 
  least 
  ten 
  feet 
  in 
  low 
  branching 
  trees, 
  and 
  even 
  

   higher 
  when 
  the 
  infestation 
  has 
  been 
  of 
  long 
  continuance. 
  The 
  newly 
  

   hatched 
  larva^ 
  about 
  one-fifth 
  of 
  an 
  inch 
  in 
  length, 
  may 
  be 
  found 
  within 
  

   its 
  burrow 
  at 
  a 
  depth 
  perhaps 
  of 
  one-tenth 
  of 
  an 
  inch, 
  by 
  cutting 
  in 
  at 
  

   the 
  places 
  indicated 
  as 
  above. 
  September 
  12th, 
  Dr. 
  Packard 
  found 
  that 
  

   the 
  mines 
  or 
  burrows 
  of 
  the 
  young 
  larv^ 
  were 
  already 
  about 
  an 
  inch 
  

   long, 
  most 
  of 
  them 
  being 
  directed 
  upward. 
  They 
  pass 
  the 
  winter 
  in 
  

   shallow 
  burrows 
  in 
  the 
  bark. 
  The 
  following 
  spring 
  they 
  burrow 
  deeper 
  

   and 
  mine 
  the 
  cambium 
  layer 
  and 
  the 
  living 
  wood, 
  — 
  the 
  burrows 
  steadily 
  

   increasing 
  in 
  size 
  with 
  the 
  growth 
  of 
  the 
  larvs. 
  It 
  is 
  probable 
  that 
  the 
  

   insect 
  requires 
  two 
  years 
  to 
  complete 
  its 
  transformations, 
  and 
  that 
  

   an 
  entire 
  season 
  is 
  spent 
  by 
  the 
  long 
  white 
  fleshy 
  grubs, 
  with 
  deeply 
  

   marked 
  transverse 
  incisions, 
  in 
  running 
  their 
  mines 
  or 
  burrows, 
  about 
  

   one-third 
  of 
  an 
  inch 
  in 
  depth 
  and 
  one-half 
  an 
  inch 
  in 
  width, 
  in 
  all 
  direc- 
  

   tions 
  beneath 
  the 
  bark. 
  On 
  the 
  approach 
  .of 
  the 
  second 
  winter 
  the 
  larvae 
  

   probably 
  burrow 
  to 
  the 
  depth 
  of 
  an 
  inch 
  or 
  two 
  in 
  the 
  trunk 
  and 
  there 
  

   hibernate. 
  In 
  the 
  spring 
  feeding 
  is 
  resumed 
  and 
  the 
  burrows 
  continued 
  

   a 
  distance 
  neatly 
  equal 
  to 
  that 
  of 
  the 
  previous 
  season, 
  before 
  the 
  pupal 
  

   chamber 
  is 
  excavated 
  in 
  the 
  wood. 
  Mr. 
  Kirkland 
  found 
  a 
  number 
  of 
  

   burrows 
  in 
  an 
  infested 
  tree 
  with 
  a 
  chamber 
  midway 
  of 
  their 
  length, 
  and 
  

   thought 
  that 
  this 
  might 
  indicate 
  the 
  place 
  of 
  hibernation. 
  The 
  larval 
  

   burrows 
  usually 
  run 
  upward 
  and 
  partially 
  around 
  the 
  trees, 
  but 
  occa- 
  

   sionally 
  downward. 
  They 
  frequently 
  intersect, 
  and 
  thus 
  a 
  badly 
  infested 
  

   tree 
  may 
  be 
  effectually 
  girdled 
  and 
  killed. 
  

  

  Distribution. 
  

  

  The 
  recorded 
  distribution 
  of 
  this 
  beetle 
  is 
  curiously 
  limited. 
  The 
  ex- 
  

   planation 
  may 
  be 
  that 
  only 
  within 
  this 
  area 
  has 
  it 
  been 
  sufficiently 
  

   abundant 
  to 
  attract 
  attention, 
  although 
  it 
  would 
  seem 
  that 
  even 
  if 
  rare, 
  

   some 
  examples 
  should 
  fall 
  into 
  the 
  hands 
  of 
  collectors 
  and 
  the 
  localities 
  

   be 
  made 
  known. 
  The 
  reported 
  distribution 
  is 
  as 
  follows 
  ; 
  South 
  Quebec, 
  

   the 
  southeastern 
  portion 
  of 
  Ontario, 
  Maine, 
  New 
  Hampshire, 
  Vermont, 
  

   Massachusetts, 
  Rhode 
  Island, 
  Connecticut, 
  New 
  York, 
  New 
  Jersey, 
  

   Pennsylvania, 
  Michigan, 
  Indiana, 
  Northern 
  Illinois 
  and 
  Wisconsin. 
  

   This 
  record 
  indicates 
  comparatively 
  narrow 
  bounds, 
  but 
  it 
  will 
  probably 
  

   be 
  found 
  that 
  it 
  extends 
  over 
  a 
  much 
  greater 
  area 
  than 
  indicated 
  above. 
  

   There 
  is 
  apparently 
  no 
  reason 
  why 
  it 
  should 
  not 
  extend 
  to 
  the 
  Rocky 
  

   Mountains, 
  if 
  not 
  to 
  the 
  Pacific 
  coast. 
  

  

  17 
  

  

  