﻿2.— 
  ADDITIONS 
  AND 
  CORKECTIONS 
  TO 
  THE 
  LIST 
  OF 
  CROP- 
  

   PESTS 
  IN 
  SOUTH 
  INDIA. 
  

  

  (Plate 
  I). 
  

  

  By 
  E. 
  Ballard, 
  B.A., 
  F.E.S., 
  Government 
  Entomologist, 
  Madras, 
  

  

  DiPTERA. 
  

  

  P. 
  39. 
  AntJiomyiadcB. 
  Cholam, 
  Cumbu 
  and 
  Tomato 
  Hies. 
  

   I 
  sent 
  these 
  three 
  species 
  to 
  the 
  Imperial 
  Bureau 
  of 
  Entomology 
  

   for 
  identification 
  in 
  1914 
  and 
  1915. 
  They 
  were 
  all 
  three 
  identified 
  

   by 
  Mr. 
  Grimshaw 
  as 
  a 
  species 
  of 
  Atherigona. 
  I 
  did 
  not 
  agree 
  with 
  this 
  

   identification 
  as 
  I 
  know 
  the 
  flies 
  to 
  differ 
  in 
  habits, 
  larvae 
  and 
  structure. 
  

   Dr. 
  Marshall 
  took 
  the 
  flies 
  to 
  Major 
  Austin 
  on 
  his 
  return 
  from 
  military 
  

   service 
  and 
  he 
  says 
  that 
  all 
  three 
  species 
  are 
  distinct 
  and 
  probably 
  new. 
  

   He 
  has 
  not 
  yet 
  had 
  time 
  to 
  describe 
  them. 
  I 
  might 
  mention 
  in 
  passing 
  

   that 
  the 
  " 
  Tomato 
  fly 
  " 
  is 
  common 
  in 
  cotton 
  fields 
  badly 
  infested 
  by 
  

   Earias 
  sp. 
  and 
  can 
  be 
  bred 
  from 
  shoots 
  bored 
  by 
  these 
  insects. 
  I 
  have 
  

   recently 
  bred 
  an 
  Anthomyiad 
  from 
  Paddy 
  which 
  appears 
  to 
  be 
  the 
  

   same 
  as 
  the 
  cwnhu 
  fly. 
  This 
  is, 
  I 
  think, 
  the 
  first 
  time 
  these 
  flies 
  have 
  

   been 
  recorded 
  from 
  paddy 
  in 
  South 
  India 
  but 
  I 
  am 
  not 
  quite 
  certain 
  

   of 
  this. 
  I 
  have 
  not 
  had 
  time 
  to 
  take 
  up 
  the 
  study 
  of 
  these 
  flies 
  again 
  

   since 
  my 
  return 
  to 
  India. 
  They 
  are 
  however 
  worthy 
  of 
  study 
  as 
  cholam 
  

   and 
  cumbu 
  suffer 
  from 
  them 
  to 
  a 
  considerable 
  extent. 
  The 
  larvae 
  show 
  

   interesting 
  differences 
  in 
  the 
  structure 
  of 
  the 
  pharyngeal 
  skeleton. 
  

   The 
  cJiolam 
  stem 
  fly 
  is 
  -parasitized 
  by 
  Tetrastichus 
  nyeynitawas, 
  Rohwer 
  

   [Ann. 
  Mag. 
  Nat. 
  Hist. 
  No. 
  37, 
  Vol. 
  7 
  (1921), 
  pp. 
  131-132]. 
  

  

  P. 
  49. 
  Packydiplosis 
  oryzce, 
  Wood-Mason. 
  

   With 
  reference 
  to 
  the 
  remark 
  that 
  this 
  fly 
  is 
  attracted 
  to 
  light 
  I 
  

   am 
  inclined 
  to 
  believe 
  that 
  it 
  is 
  heat, 
  not 
  Hght, 
  which 
  causes 
  the 
  attrac- 
  

   tion. 
  At 
  one 
  time 
  while 
  studying 
  Schoenobius 
  bipunctifer, 
  we 
  had 
  in 
  

   the 
  Parm 
  wet 
  lands 
  at 
  Coimbatore, 
  a 
  big 
  200 
  candle 
  power 
  lamp 
  on 
  

   top 
  of 
  which 
  was 
  a 
  black 
  shade, 
  designed 
  to 
  reflect 
  light 
  downwards. 
  

   Very 
  large 
  numbers 
  of 
  P. 
  oryzce 
  were 
  found 
  on 
  top 
  of 
  the 
  shade, 
  fewer 
  

   in 
  the 
  pan 
  below 
  the 
  light. 
  I 
  noticed 
  the 
  same 
  thing 
  in 
  my 
  bungalow 
  

   where 
  a 
  number 
  of 
  Cecidomyiads 
  were 
  always 
  found 
  at 
  one 
  time 
  on 
  

   top 
  of 
  a 
  dark 
  purple 
  shade 
  which 
  was 
  on 
  the 
  standing 
  lamp. 
  

  

  ( 
  21 
  ) 
  

  

  