﻿REPORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  239 
  

  

  ^Kirby), 
  in 
  which 
  they 
  measure 
  from 
  about 
  once 
  and 
  a 
  half 
  the 
  length 
  of 
  

   the 
  body 
  in 
  the 
  female, 
  to 
  nearly 
  four 
  times 
  its 
  length 
  in 
  the 
  male. 
  Many 
  

   of 
  the 
  members 
  of 
  this 
  large 
  family 
  are 
  remarkable 
  for 
  their 
  size, 
  beauty 
  

   of 
  color, 
  or 
  elegance 
  of 
  form, 
  and 
  have 
  been, 
  on 
  these 
  accounts, 
  favorites 
  

   with 
  collectors. 
  Unfortunately, 
  a 
  large 
  number 
  of 
  the 
  species, 
  are 
  quite 
  

   harmful 
  to 
  the 
  trees 
  that 
  they 
  infest. 
  Among 
  the 
  notorious 
  and 
  well- 
  

   known 
  pests, 
  may 
  be 
  mentioned 
  the 
  oak-pruner, 
  Elaphidio7i 
  paralhlum 
  

   Newm.; 
  the 
  round-headed 
  apple-tree 
  borer, 
  Saperda 
  Candida 
  Fabr.; 
  and 
  

   the 
  common 
  elm-tree 
  borer, 
  Saperda 
  tridaitata 
  Oliv. 
  

  

  Description 
  of 
  the 
  Beetle. 
  

   " 
  The 
  head 
  is 
  yellow, 
  with 
  the 
  antenna 
  and 
  the 
  eyes 
  reddish-black; 
  

   the 
  thorax 
  is 
  black, 
  with 
  two 
  transverse 
  yellow 
  spots 
  on 
  each 
  side 
  ; 
  the 
  

   wing 
  covers, 
  for 
  about 
  two-thirds 
  of 
  their 
  length, 
  are 
  black, 
  the 
  remaining 
  

   third 
  is 
  yellow, 
  and 
  they 
  are 
  ornamented 
  with 
  bands 
  and 
  spots 
  arranged 
  

   in 
  the 
  following 
  manner 
  : 
  a 
  yellow 
  spot 
  on 
  each 
  shoulder, 
  a 
  broad 
  yellow 
  

   curved 
  band 
  or 
  arch, 
  of 
  which, 
  the 
  yellow 
  scutel 
  forms 
  the 
  keystone 
  on 
  

   the 
  base 
  of 
  the 
  wing-covers 
  ; 
  behind 
  this 
  a 
  zigzag 
  yellow 
  band 
  forming 
  

   the 
  letter 
  W; 
  across 
  the 
  middle 
  another 
  yellow 
  band 
  arching 
  backwards, 
  

   and 
  on 
  the 
  yellow 
  tip 
  a 
  curved 
  band 
  and 
  spot 
  of 
  a 
  black 
  color; 
  legs 
  

   yellow, 
  and 
  the 
  under 
  side 
  of 
  the 
  body 
  is 
  reddish-yellow, 
  variegated 
  with 
  

   brown. 
  Nearly 
  an 
  inch 
  in 
  length." 
  (Harris.) 
  

  

  Ravages 
  of 
  the 
  Insect. 
  

  

  This 
  borer 
  has 
  for 
  many 
  years 
  been 
  destroying 
  a 
  large 
  number 
  of 
  our 
  

   sugar 
  maples, 
  as 
  its 
  burrows 
  are 
  usually 
  carried 
  around 
  the 
  trunk 
  beneath 
  

   the 
  bark, 
  and 
  when 
  several 
  occur 
  in 
  the 
  same 
  tree, 
  they 
  girdle 
  it 
  by 
  their 
  

   interlacings 
  and 
  thus 
  kill 
  the 
  tree. 
  Even 
  when 
  they 
  are 
  not 
  fatal 
  to 
  the 
  

   tree, 
  they 
  occasion 
  unsightly 
  cracking 
  of 
  the 
  bark 
  and 
  serious 
  deformities 
  

   of 
  growth.* 
  

  

  As 
  early 
  as 
  1859, 
  my 
  attention 
  was 
  attracted 
  by 
  the 
  operations 
  of 
  this 
  

   insect 
  in 
  a 
  long 
  row 
  of 
  sugar 
  maples 
  bordering 
  a 
  lawn 
  at 
  Schoharie, 
  N. 
  Y. 
  

   One 
  tree 
  which 
  I 
  had 
  examined, 
  of 
  some 
  ten 
  inches 
  in 
  diameter 
  at 
  the 
  

   base, 
  which 
  had 
  been 
  more 
  seriously 
  affected 
  than 
  the 
  others, 
  and 
  probably 
  

   was 
  the 
  first 
  to 
  be 
  attacked, 
  had 
  been 
  nearly 
  destroyed. 
  Several 
  of 
  the 
  

   grubs 
  had 
  commenced 
  their 
  ravages 
  side 
  by 
  side, 
  and 
  their 
  united 
  cuttings 
  

   had 
  in 
  places 
  exposed 
  the 
  trunk 
  for 
  over 
  a 
  hand's 
  breadth. 
  The 
  tree 
  had 
  

  

  *For 
  additional 
  featares 
  of 
  these 
  burrows 
  see 
  the 
  Report 
  of 
  the 
  Entomologist 
  for 
  the 
  year 
  

   1886, 
  [being 
  the 
  Third 
  Report 
  on 
  the 
  Injurious 
  and 
  Other 
  Insects 
  of 
  the 
  State 
  of 
  New 
  York], 
  

   page 
  104. 
  

  

  