﻿— 
  95 
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  The 
  IjArge-eyed 
  Purslane 
  Bug. 
  

   Geocoris 
  bullatus 
  Say. 
  • 
  

  

  This 
  species 
  ranges 
  from 
  Canada 
  to 
  the 
  Rocky 
  

   Mountains. 
  It 
  is 
  common 
  in 
  Illinois 
  on 
  sugar 
  

   beets, 
  but 
  is 
  especially 
  abundant 
  west 
  of 
  the 
  Mis- 
  

   souri 
  River, 
  where 
  it 
  seems 
  to 
  be 
  one 
  of 
  the 
  com- 
  

   monest 
  insects 
  of 
  the 
  sugar 
  beet. 
  It 
  apparently 
  

   prefers 
  purslane, 
  but 
  it 
  is 
  common 
  on 
  the 
  pigweeds 
  

   {Afnaranius 
  and 
  Chenopodiuni) 
  and 
  on 
  smart- 
  

   weed 
  and 
  other 
  weeds 
  as 
  well. 
  Its 
  injuries 
  to 
  

   grapes 
  and 
  small 
  trees 
  have 
  been 
  mentioned 
  in 
  

   the 
  preceding 
  paragraph. 
  It 
  is 
  sometimes 
  called 
  

   the 
  ground-bug 
  because 
  of 
  its 
  habit 
  of 
  collecting 
  

   under 
  low-spreading 
  plants 
  and 
  running 
  over 
  the 
  

  

  -.t,. 
  -,. 
  The 
  Large-eyed 
  , 
  j; 
  i 
  A 
  

  

  V\xr%\2.r^^v.\x%, 
  Geocoris 
  bullatus, 
  surfacc 
  ot 
  the 
  ground. 
  

  

  adult. 
  

  

  Geocoris 
  pallens 
  Stal. 
  

   This 
  western 
  species, 
  closely 
  related 
  to 
  G. 
  bullatus, 
  is 
  reported 
  by 
  

   Gillette 
  and 
  Baker* 
  to 
  have 
  been 
  taken 
  on 
  sugar 
  beets 
  in 
  Colorado. 
  Their 
  

   collections 
  of 
  the 
  imago 
  were 
  made 
  between 
  May 
  7th 
  and 
  August 
  24th. 
  

  

  Nysius 
  viinutus 
  Uhl. 
  

   This 
  insect 
  is 
  said 
  in 
  Gillette 
  and 
  Baker's 
  " 
  Hemiptera 
  of 
  Colo- 
  

   rado" 
  to 
  be 
  common 
  from 
  that 
  state 
  to 
  the 
  Dakotas, 
  and 
  to 
  occur 
  also 
  

   in 
  California 
  and 
  Texas 
  and 
  in 
  some 
  of 
  the 
  Atlantic 
  states. 
  It 
  was 
  taken 
  

   from 
  June 
  4th 
  to 
  October 
  15th 
  on 
  sugar 
  beets, 
  Bigelovia, 
  and 
  mustard, 
  

   being 
  especially 
  injurious 
  to 
  the 
  last-mentioned 
  plant. 
  

  

  The 
  False 
  Chinch-bug. 
  

   Nysius 
  angu 
  status 
  Uhl. 
  

   This 
  destructive 
  species 
  is 
  widely 
  distributed, 
  attacks 
  freely 
  many 
  

   cultivated 
  crops 
  as 
  well 
  as 
  weeds, 
  and 
  not 
  infrequently 
  makes 
  a 
  destruc- 
  

   tive 
  attack 
  on 
  plants 
  of 
  

   economic 
  value. 
  It 
  com- 
  

   monly 
  does 
  its 
  most 
  serious 
  

   injury 
  in 
  spring, 
  especially 
  

   in 
  dry 
  weather, 
  the 
  hungry 
  

   adults 
  swarming 
  on 
  the 
  

   young 
  foliage 
  after 
  their 
  

  

  fast 
  of 
  hibernation 
  and 
  de- 
  ^.^^ 
  ^. 
  ^^^ 
  j.^,^^ 
  Chinch-bug. 
  Nysius 
  angustatus: 
  

  

  StrOying 
  it 
  before 
  it 
  is 
  fairly 
  a, 
  appearance 
  of 
  injured 
  leaf; 
  b, 
  nymph; 
  c, 
  adult. 
  

  

  unfolded. 
  The 
  late 
  generations 
  produce 
  a 
  less 
  serious 
  effect 
  upon 
  the 
  

   more 
  abundant 
  leafage 
  of 
  the 
  summer 
  and 
  fall. 
  

  

  *Bull. 
  31 
  (Tech. 
  Ser. 
  No. 
  i) 
  Col. 
  Agr. 
  Exper. 
  Station, 
  p. 
  25. 
  

  

  