﻿2.66 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  ten 
  were 
  frequently 
  found 
  on 
  a 
  single 
  leaf. 
  They 
  probably 
  appear 
  in- 
  

  

  May 
  or 
  June, 
  when 
  they 
  deposit 
  their 
  eggs 
  on 
  the 
  under 
  side 
  of 
  the 
  

  

  leaves, 
  which 
  hatch 
  into 
  small 
  grubs 
  that 
  burrow 
  into 
  the 
  leaves 
  and 
  

  

  feed 
  upon 
  the 
  substance 
  beneath 
  the 
  surface, 
  forming 
  blisters 
  near 
  the 
  

  

  edges 
  which 
  usually 
  extend 
  to 
  the 
  midrib. 
  * 
  # 
  * 
  They 
  change 
  

  

  within 
  the 
  bhster 
  to 
  the 
  pupa 
  form, 
  from 
  which 
  the 
  beetles 
  soon 
  emerge 
  

  

  and 
  feed 
  on 
  the 
  surface 
  of 
  the 
  remaining 
  unaffected 
  leaves. 
  The 
  blisters 
  

  

  formed 
  by 
  the 
  larv^ 
  and 
  the 
  leaves 
  skeletonized 
  by 
  the 
  beetles, 
  * 
  * 
  * 
  

  

  cause 
  the 
  leaves 
  to 
  turn 
  brown, 
  wither 
  and 
  fall. 
  * 
  # 
  * 
  'pj^g 
  beetle 
  

  

  was 
  also 
  taken 
  feeding 
  on 
  the 
  leaves 
  of 
  the 
  locust 
  at 
  Morgantown, 
  on 
  

  

  June 
  loth, 
  and 
  at 
  Kanawha 
  Station 
  on 
  June 
  i6th. 
  

  

  " 
  Like 
  the 
  plum 
  curculio, 
  it 
  is 
  the 
  habit 
  of 
  this 
  beetle 
  to 
  fall 
  to 
  the 
  

  

  ground 
  when 
  alarmed, 
  and 
  in 
  the 
  case 
  of 
  valued 
  shade 
  trees, 
  it 
  may 
  be 
  

  

  possible 
  to 
  destroy 
  them 
  by 
  the 
  jarring 
  process 
  which 
  is 
  successful 
  with 
  

  

  the 
  curculio. 
  Their 
  habit 
  of 
  feeding 
  on 
  the 
  upper 
  surface 
  of 
  the 
  leaves 
  

  

  would 
  make 
  it 
  easy 
  to 
  treat 
  them 
  by 
  spraying 
  the 
  trees 
  with 
  poisoned 
  

  

  liquid." 
  

  

  Food 
  Plants. 
  

  

  Although 
  the 
  locust 
  is 
  the 
  natural 
  food-plant 
  of 
  this 
  insect, 
  it 
  seems 
  

   not 
  to 
  be 
  entirely 
  confined 
  to 
  it, 
  for 
  Dr. 
  Dimmock 
  has 
  reported 
  it 
  as 
  

   extending 
  its 
  devastation 
  to 
  a 
  number 
  of 
  other 
  trees. 
  

  

  A 
  correspondent 
  of 
  the 
  American 
  Entomologist 
  (Vol. 
  iii, 
  p. 
  151), 
  

   represents 
  it 
  as 
  devouring 
  the 
  advanced 
  foHage 
  of 
  Siberian 
  crab-apples 
  

   in 
  the 
  first 
  week 
  of 
  May, 
  and 
  " 
  in 
  the 
  wild 
  woods, 
  the 
  tender 
  leaves 
  of 
  

   Ulmus 
  Americana^ 
  Finding 
  insufficient 
  food 
  in 
  the 
  mined 
  Robinia 
  

   leaves, 
  they 
  attack 
  the 
  young 
  leaves 
  of 
  red-oak 
  {Querciis 
  rubra), 
  leaving 
  

   other 
  species 
  of 
  oaks 
  near 
  by, 
  untouched. 
  Mr. 
  Hopkins 
  {loc. 
  cit.) 
  found 
  

   the 
  insect 
  feeding 
  on 
  the 
  foliage 
  of 
  white 
  oak, 
  beech, 
  birch 
  and 
  hawthorn 
  

   in 
  West 
  Virginia, 
  and 
  Mr. 
  Chittenden 
  (/. 
  c.) 
  records 
  instances 
  of 
  their 
  feed- 
  

   ing 
  on 
  red 
  clover, 
  hog 
  peanut 
  iFalcata 
  comosa 
  which 
  is 
  the 
  Amphicar- 
  

   pcea 
  nionoica 
  of 
  Gray's 
  Manual) 
  and 
  soja 
  beans. 
  

  

  Dr. 
  Harris' 
  Account 
  of 
  the 
  Insect. 
  

   According 
  to 
  Dr. 
  Harris, 
  the 
  beetles 
  may 
  be 
  found 
  pairing 
  in 
  Massa- 
  

   chusetts, 
  in 
  the 
  middle 
  of 
  June 
  and 
  laying 
  eggs 
  on 
  the 
  leaves 
  of 
  the 
  

   locust 
  trees 
  which 
  are 
  transformed 
  to 
  the 
  perfect 
  insect 
  in 
  August. 
  

   '' 
  They 
  measure 
  nearly 
  one-quarter 
  of 
  an 
  inch 
  in 
  length, 
  and 
  are 
  of 
  a 
  

   tawny 
  yellow 
  color, 
  with 
  a 
  black 
  longitudinal 
  line 
  on 
  the 
  middle 
  of 
  the 
  

   back, 
  partly 
  on 
  one 
  and 
  partly 
  on 
  the 
  other 
  wing-cover, 
  the 
  inner 
  edges 
  

   of 
  which 
  meet 
  together 
  and 
  form 
  what 
  is 
  called 
  the 
  suture 
  ; 
  whence 
  the 
  

   species 
  was 
  named 
  Hispa 
  suturalis 
  by 
  Fabricius; 
  the 
  head, 
  antennae, 
  

  

  