﻿— 
  I04 
  — 
  

  

  A 
  young 
  specimen 
  taken 
  on 
  violets 
  September 
  9th 
  was 
  nearly 
  full 
  

   grown 
  October 
  ist, 
  when 
  it 
  was 
  accidentally 
  destroyed. 
  

  

  The 
  Greasy 
  Cutworm. 
  

   A 
  gratis 
  ypsilon 
  Rott. 
  

   In 
  this 
  larva 
  the 
  cutworm 
  habit 
  is 
  developed 
  to 
  its 
  fullest 
  extent. 
  

  

  It 
  is 
  one 
  of 
  our 
  commonest 
  species, 
  and 
  a 
  true 
  cosmopolite, 
  its 
  range 
  

  

  extending 
  around 
  the 
  world 
  and 
  including 
  

   Australia. 
  A 
  partly 
  eaten 
  beet 
  leaf 
  was 
  no- 
  

   ticed 
  by 
  us 
  in 
  July, 
  drawn 
  into 
  a 
  crevice 
  in 
  

   the 
  earth, 
  within 
  which 
  a 
  full 
  grown 
  larva 
  of 
  

   this 
  species 
  was 
  secreted. 
  It 
  is 
  a 
  general 
  

   feeder, 
  destructive 
  in 
  gardens, 
  and 
  injurious 
  

   also 
  to 
  field 
  crops 
  and 
  a 
  variety 
  of 
  fruits* 
  

   including 
  the 
  strawberry, 
  grape, 
  and 
  apple. 
  

   The 
  pale 
  red, 
  nearly 
  spherical 
  eggs 
  are 
  

   laid 
  in 
  patches, 
  often 
  two 
  or 
  three 
  layers 
  

   deep, 
  not 
  always 
  on 
  the 
  food 
  plants 
  of 
  the 
  

   larvse. 
  The 
  young 
  are 
  at 
  first 
  semiloopers. 
  

   When 
  mature 
  they 
  are 
  about 
  an 
  inch 
  and 
  a 
  

   half 
  long, 
  dirty 
  grayish 
  or 
  blackish, 
  and 
  

   feebly 
  striped. 
  The 
  dark 
  brown 
  pupa 
  is 
  

   found 
  in 
  the 
  earth. 
  The 
  life 
  history 
  of 
  this 
  

   species 
  is 
  not 
  thoroughly 
  known, 
  but 
  there 
  

   is 
  apparently 
  but 
  one 
  brood 
  each 
  year, 
  with 
  

   many 
  occasional 
  irregularities 
  in 
  the 
  stage 
  

   of 
  hibernation 
  and 
  periods 
  of 
  development. 
  

   The 
  species 
  seems 
  usually 
  to 
  hibernate 
  as 
  

  

  a 
  larva, 
  pupating 
  about 
  the 
  first 
  of 
  June, 
  and 
  yielding 
  the 
  moth 
  late 
  in 
  

  

  this 
  month 
  and 
  in 
  July, 
  and 
  these 
  

  

  moths 
  of 
  summer 
  origin 
  often 
  

  

  linger 
  on 
  until 
  October. 
  The 
  

  

  hibernating 
  larvce 
  are 
  seldom 
  

  

  found 
  after 
  July. 
  15th. 
  Pupae 
  

  

  have, 
  however, 
  been 
  found 
  in 
  win- 
  

   ter, 
  and 
  adults, 
  probably 
  emerg- 
  

   ing 
  from 
  these, 
  early 
  in 
  spring. 
  

  

  It 
  is 
  possible 
  that 
  the 
  discrepancies 
  

  

  of 
  this 
  record 
  may 
  be 
  reconciled 
  by 
  the 
  discrimination 
  of 
  one 
  or 
  more 
  

  

  additional 
  'broods. 
  

  

  Noctua 
  pled 
  a 
  Linn. 
  

   This 
  European 
  cutworm 
  is 
  widely 
  distributed 
  in 
  the 
  United 
  States 
  

   from 
  Canada 
  to 
  Texas, 
  -and 
  is 
  moderately 
  common 
  in 
  Illinois 
  as 
  shown 
  

  

  Fig. 
  30. 
  The 
  Greasy 
  Cutworm, 
  

   Agrotis 
  ypsilon, 
  larva, 
  back 
  and 
  side 
  

   views. 
  

  

  Fig. 
  31. 
  The 
  Greasy 
  Cutworm, 
  Agrotis 
  ypsilon,. 
  

   adult. 
  

  

  