﻿PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  69 
  

  

  easily 
  stamped 
  out, 
  if 
  tackled 
  at 
  once. 
  But 
  as 
  it 
  was, 
  the 
  cultivators 
  

   took 
  no 
  hint 
  from 
  the 
  first 
  signs 
  when 
  the 
  grass 
  turned 
  brown 
  on 
  the 
  

   bands 
  and 
  did 
  not 
  connect 
  this 
  with 
  the 
  invasion 
  in 
  the 
  field. 
  Thinking 
  

   that 
  the 
  larvse 
  are 
  carried 
  into 
  the 
  fields 
  with 
  the 
  irrigation 
  water, 
  the 
  

   cultivators 
  cut 
  it 
  off 
  with 
  the 
  result 
  that 
  the 
  plants 
  were 
  eaten 
  close 
  to 
  

   the 
  ground 
  and 
  were 
  completely 
  destroyed. 
  The 
  utter 
  lack 
  of 
  co-opera- 
  

   tion 
  amongst 
  the 
  cultivators 
  was 
  noticeable. 
  No 
  help 
  was 
  given 
  to 
  the 
  

   man 
  whose 
  plot 
  was 
  first 
  attacked. 
  Crows 
  and 
  other 
  enemies 
  are 
  very 
  

   useful, 
  but 
  only 
  in 
  the 
  later 
  stages 
  of 
  the 
  attack. 
  In 
  Ceylon 
  also 
  rice 
  is 
  

   thrown 
  down 
  to 
  attract 
  birds. 
  

  

  At 
  the 
  end 
  of 
  the 
  attack 
  a 
  Braconid 
  parasite 
  makes 
  its 
  appearance. 
  

  

  Outbreaks 
  in 
  Ceylon 
  occur 
  at 
  the 
  end 
  of 
  the 
  year 
  in 
  November 
  or 
  

   December, 
  especially 
  if 
  the 
  South- 
  West 
  monsoon 
  is 
  a 
  failure. 
  It 
  is 
  

   impossible 
  to 
  say 
  where 
  an 
  outbreak 
  will 
  occur, 
  so 
  no 
  provision 
  against 
  

   it 
  can 
  be 
  made. 
  A 
  campaign 
  on 
  similar 
  lines 
  to 
  that 
  of 
  Mr. 
  Ballard 
  

   would 
  be 
  extremely 
  useful 
  in 
  Ceylon. 
  We 
  have 
  to 
  fight 
  the 
  same 
  indiffe- 
  

   rence 
  but 
  some 
  advantage 
  would 
  be 
  gained. 
  . 
  

  

  As 
  regards 
  the 
  parasites 
  I 
  have 
  found 
  five 
  Tachinids 
  and 
  a 
  Braconid, 
  Mr. 
  Ballard. 
  

   (JJielonus 
  sp. 
  (new 
  species). 
  

  

  In 
  1915 
  we 
  reared 
  at 
  Pusa 
  Chelonus 
  carhonator, 
  Marshall, 
  in 
  large 
  Mr. 
  Dutt. 
  

   numbers 
  from 
  caterpillars 
  of 
  S'podoptera 
  mauritia. 
  

  

  