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  Epitrix 
  brevis 
  Schwarz. 
  

  

  (PI. 
  VII., 
  Fig. 
  I.) 
  

  

  This 
  very 
  minute, 
  black, 
  strongly 
  punctured 
  flea-beetle 
  is 
  doubtless 
  

   frequently 
  overlooked 
  on 
  account 
  of 
  its 
  small 
  size. 
  Outside 
  of 
  Illinois 
  

   it 
  is 
  known 
  to 
  us 
  from 
  Florida, 
  Louisiana, 
  and 
  Texas. 
  It 
  is 
  somewhat 
  

   common 
  in 
  this 
  state, 
  and 
  many 
  examples 
  have 
  been 
  taken 
  at 
  Urbana 
  

   in 
  October 
  on 
  sugar 
  beets. 
  It 
  was 
  originally 
  described 
  from 
  specimens 
  

   taken 
  on 
  the 
  black 
  nightshade 
  {^Solanum 
  nignwi). 
  The 
  larva 
  probably 
  

   feeds 
  on 
  roots 
  of 
  Solanacecc. 
  

  

  Chcctocne?na 
  denticulata 
  111. 
  

  

  This 
  flea-beetle 
  is 
  about 
  an 
  eighth 
  of 
  an 
  inch 
  in 
  length 
  and 
  of 
  a 
  

   uniform 
  metallic 
  bronze 
  color. 
  It 
  feeds 
  principally 
  upon 
  grass 
  and 
  

   grain, 
  but 
  has 
  been 
  found 
  injuring 
  beets 
  to 
  some 
  noticeable 
  extent 
  in 
  

   Nebraska 
  and 
  in 
  Illinois. 
  In 
  the 
  Eastern 
  States 
  it 
  has 
  been 
  reported 
  as 
  

   injurious 
  to 
  broom-corn, 
  millet, 
  and 
  various 
  grasses. 
  On 
  corn, 
  when 
  

   abundant, 
  it 
  does 
  conspicuous 
  injury, 
  making 
  minute 
  holes, 
  elongate 
  

   slits, 
  and 
  white 
  streaks 
  on 
  the 
  leaf. 
  We 
  have 
  seen 
  it 
  very 
  abundant 
  on 
  

   coarse 
  grasses 
  on 
  the 
  banks 
  of 
  the 
  Ohio 
  River 
  opposite 
  Elizabethtown, 
  

   111. 
  It 
  hibernates 
  as 
  an 
  adult 
  and 
  eggs 
  have 
  been 
  obtained 
  from 
  it 
  by 
  

   us 
  early 
  in 
  July. 
  Its 
  life 
  history 
  is 
  otherwise 
  unknown, 
  the 
  larvae 
  never 
  

   having 
  been 
  recognized. 
  

  

  The 
  beetles 
  were 
  found 
  most 
  abundant 
  on 
  broom-corn 
  near 
  Wash- 
  

   ington, 
  D. 
  C, 
  during 
  the 
  last 
  week 
  in 
  June, 
  the 
  numbers 
  diminishing 
  

   after 
  the 
  first 
  week 
  in 
  July. 
  About 
  the 
  middle 
  of 
  August 
  adults, 
  proba- 
  

   bly 
  of 
  the 
  new 
  brood, 
  have 
  been 
  taken 
  by 
  us 
  abundantly 
  in 
  Kentucky, 
  

   and 
  also 
  at 
  Metropolis, 
  in 
  southern 
  Illinois. 
  It 
  apparently 
  occurs 
  

   throughout 
  the 
  United 
  States 
  east 
  of 
  the 
  Rocky 
  Mountains, 
  and 
  it 
  is 
  

   also 
  known 
  from 
  California, 
  Utah, 
  and 
  Montana. 
  

  

  The 
  Corn 
  Flea-beetle. 
  

  

  Chcetocnema 
  pulicaria 
  Melsh. 
  

  

  A 
  number 
  of 
  specimens 
  of 
  this 
  minute 
  bronzed 
  species 
  were 
  taken 
  

   by 
  us 
  on 
  sugar 
  beets 
  in 
  October 
  in 
  Urbana. 
  The 
  species 
  has 
  been 
  

   known 
  mainly 
  as 
  a 
  corn 
  insect 
  in 
  Illinois, 
  where 
  for 
  several 
  seasons 
  it 
  

   did 
  considerable 
  injury 
  to 
  the 
  leaves, 
  riddling 
  them 
  with 
  minute 
  holes, 
  

   causing 
  them 
  to 
  wither, 
  and 
  noticeably 
  dwarfing 
  the 
  plants. 
  It 
  has 
  also 
  

   been 
  taken 
  on 
  sorghum, 
  blue-grass, 
  wheat, 
  strawberry, 
  ragweed, 
  and 
  

   horse-nettle, 
  and 
  was 
  found 
  with 
  the 
  species 
  preceding 
  injuring 
  broom- 
  

   corn 
  at 
  Washington, 
  D. 
  C. 
  It 
  occurs 
  from 
  Pennsylvania 
  and 
  North 
  

   Carolina 
  to 
  Texas 
  and, 
  Colorado, 
  and 
  seems 
  to 
  be 
  especially 
  common 
  in 
  

   southern 
  Illinois. 
  It 
  hibernates 
  as 
  an 
  adult, 
  and 
  has 
  been 
  found 
  de- 
  

  

  