﻿KEPORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  309 
  

  

  Datana 
  integerrima 
  Gr.-Rob. 
  

  

  The 
  walnut 
  trees 
  in 
  Bellport, 
  L. 
  L, 
  have 
  been 
  almost 
  entirely 
  stripped 
  

   of 
  their 
  leaves 
  by 
  the 
  caterpillar 
  of 
  this 
  species, 
  according 
  to 
  reports 
  

   received 
  from 
  Dr. 
  H. 
  G. 
  Dyar, 
  of 
  New 
  York 
  city. 
  

  

  This 
  is 
  one 
  of 
  the 
  most 
  common 
  of 
  our 
  Datanas, 
  and 
  its 
  larvae 
  are 
  

   often 
  found 
  assembled 
  in 
  large 
  companies 
  on 
  the 
  hickory. 
  They 
  also 
  

   feed 
  on 
  walnut 
  {Juglans), 
  beech 
  {Fagus), 
  oak, 
  and 
  occasionally 
  on 
  

   willows 
  and 
  apple. 
  

  

  The 
  x'\rmy-Worm. 
  

  

  The 
  notable 
  entomological 
  event 
  of 
  the 
  year 
  has 
  been 
  the 
  occurrence 
  

   and 
  the 
  ravages 
  of 
  the 
  army- 
  worm, 
  Leucania 
  unipuncta, 
  over 
  the 
  greater 
  

   part 
  of 
  the 
  State 
  — 
  from 
  its 
  eastern 
  to 
  its 
  western 
  borders, 
  and 
  from 
  its 
  

   southern 
  to 
  nearly 
  its 
  northern 
  boundary. 
  It 
  has 
  been 
  authentically 
  

   reported 
  from 
  55 
  of 
  the 
  60 
  counties 
  of 
  the 
  State. 
  Its 
  extension 
  and 
  the 
  

   injuries 
  committed 
  by 
  it 
  are 
  believed 
  to 
  be 
  greater 
  than 
  had 
  ever 
  before 
  

   been 
  recorded 
  in 
  the 
  State. 
  When 
  it 
  appeared 
  on 
  Long 
  Island 
  and 
  in 
  

   Westchester 
  county 
  in 
  1880, 
  although 
  serious 
  harm 
  was 
  done 
  to 
  the 
  

   crops 
  invaded, 
  it 
  was 
  limited 
  to 
  the 
  southeastern 
  portion 
  of 
  the 
  State, 
  

   although 
  spreading 
  over 
  some 
  of 
  the 
  New 
  England 
  States, 
  New 
  Jersey 
  

   and 
  Pennsylvania. 
  

  

  Its 
  habits 
  have 
  been 
  similar 
  to 
  the 
  many 
  recorded 
  occurrences 
  else- 
  

   where, 
  unless 
  that 
  in 
  many 
  instances 
  its 
  operations 
  Vv^ere 
  first 
  observed 
  in 
  

   rye 
  fields. 
  From 
  these 
  it 
  spread 
  to 
  oats, 
  to 
  timothy, 
  and 
  corn. 
  Clover 
  

   has 
  been 
  reported 
  as 
  eaten 
  by 
  it, 
  and 
  peas 
  to 
  a 
  limited 
  extent. 
  Grass, 
  

   of 
  course, 
  was 
  consumed 
  in 
  its 
  travels. 
  

  

  Of 
  its 
  abundance 
  it 
  may 
  suffice 
  to 
  state 
  : 
  In 
  many 
  places 
  they 
  occurred 
  

   in 
  millions. 
  Roadways 
  crossed 
  by 
  them 
  were 
  "blackened" 
  by 
  their 
  

   numbers. 
  They 
  " 
  covered 
  fences 
  " 
  and 
  it 
  has 
  been 
  said 
  that 
  they 
  covered 
  

   sides 
  of 
  buildings. 
  The 
  noise 
  made 
  by 
  their 
  feeding 
  could 
  be 
  heard 
  

   after 
  nightfall. 
  The 
  clothing 
  of 
  a 
  person 
  standing 
  for 
  a 
  short 
  time 
  in 
  an 
  

   infested 
  field 
  needed 
  frequent 
  brushing 
  and 
  picking 
  over 
  to 
  remove 
  

   them. 
  The 
  sight 
  of 
  their 
  marching 
  armies 
  was 
  said 
  to 
  be 
  ''nauseating." 
  

  

  Of 
  the 
  many 
  preventives 
  employed 
  to 
  prevent 
  their 
  ravages 
  — 
  as 
  hereto- 
  

   fore, 
  plowing 
  furrows 
  with 
  a 
  perpendicular 
  side 
  toward 
  the 
  field 
  to 
  be 
  

   protected 
  from 
  invasion, 
  was 
  the 
  most 
  effective 
  and 
  the 
  one 
  more 
  gen- 
  

   erally 
  resorted 
  to. 
  Attempts 
  to 
  save 
  fields 
  of 
  barley, 
  oats 
  and 
  timothy 
  

   when 
  once 
  infested, 
  were 
  of 
  little 
  avail. 
  

  

  