﻿772 
  

  

  REPORT 
  UNITED 
  STATES 
  GEOLOGICAL 
  SURVEY. 
  

  

  Fig. 
  40.- 
  

  

  The 
  Squash 
  Lady-Bird, 
  EpUachna 
  iorealis 
  Thuuberg 
  (Fig. 
  40). 
  — 
  Feeding 
  on 
  the 
  

   leaves 
  of 
  the 
  squash 
  and 
  pumpkin 
  ; 
  a 
  yellowish 
  grub, 
  with 
  lou^ 
  branched 
  spines. 
  

  

  While 
  all 
  the 
  other 
  species 
  of 
  the 
  family 
  of 
  " 
  lady-bird" 
  {Coc- 
  

   cineUidce) 
  are 
  caruivorous, 
  preying 
  on 
  other 
  living 
  insects, 
  as 
  

   plant-lice, 
  etc., 
  the 
  present 
  species 
  is 
  injurious 
  to 
  cucurbita- 
  

   ceous 
  plants. 
  The 
  beetle 
  is 
  yellowish, 
  with 
  seven 
  large 
  black 
  

   sqVashLa- 
  spots 
  ou 
  cach 
  wiug-covcr. 
  "The 
  larva 
  is 
  yellow, 
  with 
  long, 
  

   dy-Bird. 
  browu, 
  branched 
  spines, 
  arranged 
  in 
  rows 
  of 
  six 
  on 
  each 
  

   segment, 
  except 
  the 
  first 
  thoracic 
  segment, 
  which 
  has 
  only 
  four. 
  The 
  

   pupa 
  instead 
  of 
  spines 
  has 
  short 
  bristles, 
  especially 
  on 
  the 
  thorax." 
  — 
  

   (Ostensacker.) 
  Besides 
  this 
  beetle, 
  the 
  common 
  black 
  flea-beetle, 
  Raltica 
  

   {Epiihrix) 
  cucuoneii's 
  Harris, 
  punctures 
  the 
  seed-leaves, 
  causing 
  at 
  times 
  

   a 
  great 
  deal 
  of 
  mischief. 
  

  

  The 
  PiciiXE-WoRM, 
  PhaceUura 
  nitidalis 
  Cramer 
  (Fig. 
  41.) 
  — 
  Boring 
  cylindrical 
  holes 
  in 
  

   cucumbers, 
  causing 
  the 
  fruit 
  of 
  the 
  cucumber, 
  melon, 
  or 
  squash 
  to 
  decay 
  ; 
  a 
  pale, 
  

   greenish 
  yellow 
  caterpillar, 
  with 
  a 
  jDale 
  reddish 
  head. 
  

  

  According 
  to 
  Eiley, 
  the 
  pick- 
  

  

  le-worm 
  begins 
  

   the 
  latitude 
  of 
  

  

  to 
  appear 
  in 
  . 
  

   Saint 
  Louis, 
  i 
  

   Mo., 
  about 
  the 
  middle 
  of 
  July, 
  ^ 
  

   and 
  continues 
  its 
  destructive 
  ' 
  

   work 
  until 
  the 
  end 
  of 
  Septem- 
  

   ber. 
  " 
  They 
  bore 
  cylindrical 
  

   holes 
  into 
  the 
  fruit 
  and 
  feed 
  

   on 
  its 
  fleshy 
  parts. 
  They 
  are 
  

   grass-feeders, 
  and 
  produce 
  a 
  

   large 
  amount 
  of 
  soft 
  excre- 
  

   ment. 
  Ihavefoundasmanyas 
  

   four 
  in 
  a 
  medium-sized 
  cucum- 
  

   ber, 
  and 
  a 
  single 
  worm 
  will 
  

   often 
  cause 
  the 
  fruit 
  to 
  rot. 
  

   They 
  develop 
  very 
  rapidly, 
  and 
  

   Fig. 
  41.— 
  a, 
  picMe-worm; 
  &, 
  head 
  and 
  prothoracic 
  COme 
  to 
  their 
  growth 
  in 
  from 
  

   segment, 
  enlarged 
  ; 
  c, 
  d, 
  'e, 
  f, 
  g, 
  markings 
  ; 
  h, 
  three 
  tO 
  four 
  weeks. 
  When 
  

  

  cocoon 
  ; 
  i, 
  male 
  moth.— 
  (After 
  Riley.) 
  about 
  to 
  transform 
  they 
  for- 
  

  

  sake 
  the 
  fruit 
  in 
  which 
  they 
  had 
  burrowed, 
  and 
  drawing 
  together 
  portions 
  

   of 
  some 
  leaf 
  that 
  lies 
  on 
  or 
  near 
  the 
  ground, 
  spin 
  a 
  slight 
  cocoon 
  of 
  white 
  

   silk. 
  Within 
  this 
  cocoon 
  they 
  soon 
  become 
  slender, 
  brown 
  chrysalides, 
  , 
  

   with 
  the 
  head 
  parts 
  prolonged, 
  and 
  with 
  a 
  very 
  long 
  ventral 
  sheath 
  

   which 
  incloses 
  the 
  legs. 
  If 
  it 
  is 
  not 
  too 
  late 
  in 
  the 
  season 
  the 
  moths 
  issue 
  

   in 
  from 
  eight 
  to 
  ten 
  days 
  afterward. 
  "The 
  late 
  individuals, 
  however, 
  pass 
  

   the 
  winter 
  within 
  their 
  cocoons 
  -, 
  though 
  from 
  the 
  fact 
  that 
  some 
  moths 
  

   come 
  out 
  as 
  late 
  as 
  November, 
  I 
  infer 
  that 
  they 
  may 
  also 
  winter 
  over 
  

   in 
  the 
  moth 
  state." 
  (Riley.) 
  The 
  m«th 
  is 
  yellowish-brown, 
  with 
  golden, 
  

   yellow 
  spots 
  on 
  the 
  fore 
  wings, 
  and 
  the 
  hind 
  wings 
  yellow, 
  with 
  a 
  broad, 
  

   dark 
  border. 
  

  

  Remedies.— 
  Th.Q, 
  cucumbers, 
  melons, 
  or 
  squashes 
  can 
  be 
  examined 
  and 
  

   the 
  infested 
  ones 
  destroyed 
  with 
  the 
  worm 
  within. 
  

  

  INJURING 
  THE 
  HOP. 
  

  

  The 
  Aphis 
  of 
  the 
  Hop. 
  — 
  Clustering 
  often 
  in 
  vast 
  numbers 
  on 
  the 
  branches 
  and 
  

   loaves 
  of 
  the 
  hop-vine; 
  small, 
  greenish, 
  wingless 
  or 
  winged 
  plant-lice. 
  

  

  The 
  most 
  destructive 
  insect 
  of 
  the 
  hop 
  at 
  times 
  in 
  New 
  England 
  is 
  an 
  

   aphis, 
  which 
  it 
  is 
  very 
  diflflcult 
  to 
  exterminate. 
  . 
  The 
  best 
  remedy 
  is, 
  

  

  