﻿90 
  

  

  PROCEEDIJSGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  

  

  Mr 
  Ballard. 
  

  

  Mr. 
  Misra. 
  

   Mr. 
  Thaveri. 
  

  

  coriam 
  and 
  connexivum 
  brownisli 
  white, 
  membrane 
  translucent 
  witli 
  the 
  

   veins 
  prominent. 
  

  

  The 
  total 
  period 
  of 
  a 
  life 
  cycle 
  during 
  the 
  winter 
  extends 
  from 
  36 
  to 
  

   50 
  days. 
  

  

  Eggs 
  laid 
  . 
  . 
  

   Eggs 
  hatched 
  

   Adults 
  emerged 
  

  

  Eggs 
  laid 
  . 
  

   Eggs 
  hatched 
  

   Adults 
  emerged 
  

  

  9th 
  November 
  1920. 
  

  

  14th 
  November 
  1920. 
  

  

  15th 
  December 
  1920=36 
  days. 
  

  

  14th 
  November 
  1920. 
  

   20th 
  November 
  1920. 
  

   3rd 
  January 
  1921 
  = 
  50 
  days. 
  

  

  In 
  one 
  case 
  under 
  specific 
  observation 
  the 
  copulation 
  was 
  found 
  

   to 
  take 
  place 
  20 
  days 
  after 
  the 
  emergence 
  of 
  the 
  adults 
  during 
  the 
  winter. 
  

  

  DimoT'pJiism. 
  — 
  This 
  has 
  been 
  found 
  to 
  occur 
  both 
  in 
  adults 
  and 
  

   nymphs. 
  In 
  several 
  instances 
  the 
  same 
  nymph 
  was 
  found 
  to 
  have 
  three 
  

   joints 
  in 
  the 
  left 
  antenna 
  and 
  four 
  in 
  the 
  other. 
  In 
  some 
  adults 
  the 
  

   same 
  was 
  also 
  seen 
  to 
  happen. 
  

  

  Distribution. 
  — 
  The 
  bug 
  has 
  been 
  reported 
  from 
  Cawnpore, 
  Madras, 
  

   Pusa, 
  Bagpur, 
  Belgaum, 
  Manjri, 
  Surat, 
  Poona, 
  Lyallpore, 
  Sargoda, 
  

   Hissar, 
  Calcutta, 
  Gojra, 
  Coimbatoie 
  and 
  Saidapet. 
  But 
  it 
  is 
  possible 
  

   that 
  it 
  occurs 
  in 
  all 
  the 
  cotton 
  growing 
  tracts 
  in 
  India. 
  

  

  Foodplants. 
  — 
  It 
  has 
  been 
  hitherto 
  found 
  or 
  reported 
  on 
  : 
  — 
  

  

  Cotton. 
  

  

  Hibiscus 
  esculentus. 
  

  

  ,, 
  cannabiyius. 
  

  

  ,, 
  abelmoscus. 
  

   Hollyhock. 
  

   Abutilon 
  indicum. 
  

   Thespesia 
  sp. 
  

  

  Parasites 
  and 
  predators. 
  — 
  Hitherto 
  I 
  have 
  not 
  seen 
  any 
  parasite 
  on 
  

   the 
  eggs, 
  nymphs 
  or 
  adults. 
  On 
  one 
  occasion 
  the 
  small 
  Anthocorid 
  bug, 
  

   Triphleps 
  tantilus, 
  was 
  seen 
  to 
  attack 
  the 
  nymphs 
  of 
  Oxycarenus 
  latus 
  

   on 
  cotton 
  at 
  Pusa. 
  

  

  I 
  do 
  not 
  think 
  Oxycarenus 
  is 
  responsible 
  in 
  South 
  India 
  for 
  boll 
  and 
  

   bud 
  fall, 
  which 
  is 
  caused 
  by 
  boll-worms. 
  A 
  certain 
  amount 
  of 
  destruc- 
  

   tion 
  is 
  caused 
  by 
  a 
  small 
  Capsid. 
  Dysdercus 
  is 
  a 
  rarity 
  with 
  us. 
  

  

  In 
  our 
  record 
  which 
  we 
  have 
  been 
  keeping 
  for 
  the 
  past 
  several 
  years 
  

   I 
  have 
  not 
  come 
  across 
  any 
  instance 
  of 
  damage 
  due 
  to 
  a 
  Capsid 
  bug. 
  

  

  Oxycarenus 
  occurs 
  in 
  Gujarat 
  but 
  does 
  not 
  cause 
  bud 
  or 
  boll-fall. 
  

  

  