﻿PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOT-OGICAL 
  MEETING 
  53 
  

  

  montlis 
  the 
  insect 
  is 
  particularly 
  bad 
  in 
  Malabar 
  and 
  South 
  Kanara 
  and 
  

   later 
  on 
  in 
  the 
  irrigated 
  central 
  districts 
  ; 
  and 
  in 
  the 
  Coromandel 
  tracts 
  it 
  

   is 
  found 
  later. 
  In 
  South 
  Kanara 
  the 
  pest 
  is 
  particularly 
  bad 
  and 
  even 
  

   does 
  damage 
  to 
  the 
  summer 
  crop 
  of 
  paddy 
  in 
  February-March. 
  In 
  com- 
  

   pany 
  with 
  this 
  beetle 
  is 
  often 
  found 
  the 
  smooth 
  greenish-blue 
  beetle 
  

   (Leptispa 
  pygmcea), 
  No. 
  4, 
  which 
  does 
  appreciable 
  damage 
  in 
  parts 
  of 
  

   Malabar 
  from 
  August 
  to 
  November. 
  Next 
  I 
  have 
  taken 
  the 
  Rice 
  Bug 
  

   (Leptocorisa 
  varicornis), 
  No. 
  5, 
  the 
  active 
  paddy 
  grain 
  sucker. 
  Though 
  

   found 
  all 
  over 
  South 
  India 
  periodical 
  reports 
  are 
  received 
  only 
  from 
  the 
  

   West 
  Coast 
  tracts, 
  especially 
  from 
  the 
  villages 
  along 
  the 
  Western 
  Ghats. 
  

   The 
  case 
  worm, 
  Nympliula 
  depimctalis, 
  No. 
  6, 
  is 
  bad 
  in 
  Malabar 
  and 
  

   South 
  Kanara 
  during 
  September 
  to 
  November 
  and 
  in 
  the 
  early 
  summer 
  

   months. 
  The 
  paddy 
  grasshopper, 
  HieroglypJius 
  banian, 
  No. 
  7, 
  like 
  the 
  

   rice 
  bug, 
  has 
  a 
  wide 
  distribution 
  in 
  the 
  province 
  but 
  assumes 
  pest 
  pro- 
  

   portions 
  only 
  in 
  particular 
  tracts 
  during 
  certain 
  seasons. 
  In 
  the 
  West 
  

   Coast, 
  Tinnevelly 
  and 
  in 
  the 
  Mysore 
  Ghat 
  tracts 
  it 
  appears 
  with 
  the 
  

   South-west 
  monsoons 
  and 
  in 
  the 
  Circars 
  during 
  the 
  later 
  months. 
  

   The 
  Silver-shoot 
  disease, 
  Kodu 
  or 
  AnaiJcombu, 
  Pachydiplosis 
  oryzce, 
  

   No. 
  8, 
  is 
  bad 
  in 
  the 
  Northern 
  Circars 
  from 
  August 
  to 
  December 
  

   during 
  certain 
  years. 
  The 
  paddy 
  mealy-bug, 
  the 
  ' 
  soorai 
  ' 
  disease, 
  

   Pseudococcus 
  sacchari, 
  No. 
  9, 
  is 
  found 
  in 
  the 
  central 
  districts 
  during 
  

   the 
  cold 
  weather. 
  Thrips 
  of 
  paddy, 
  which 
  comes 
  last 
  among 
  the 
  

   paddy 
  insects 
  I 
  have 
  selected, 
  Bagnallia 
  oryzce. 
  No. 
  10, 
  and 
  which 
  does 
  

   some 
  damage 
  to 
  very 
  young 
  paddy, 
  is 
  occasionally 
  bad 
  in 
  Malabar, 
  

   Chingleput 
  and 
  Coimbatore, 
  especially 
  when 
  the 
  usual 
  expected 
  

   showers 
  are 
  not 
  received. 
  

  

  The 
  second 
  diagram, 
  which 
  I 
  have 
  prepared, 
  shows 
  the 
  seasonal 
  

   distribution 
  of 
  the 
  important 
  insect 
  pests 
  of 
  other 
  crops 
  besides 
  paddy 
  

   and 
  is 
  a 
  tabular 
  one. 
  Here 
  I 
  have 
  only 
  taken 
  the 
  most 
  important 
  of 
  the 
  

   numerous 
  insects 
  so 
  far 
  noted 
  and 
  especially 
  those 
  which 
  display 
  striking 
  

   periodical 
  activity. 
  The 
  most 
  important 
  of 
  these 
  insects 
  which 
  give 
  

   trouble 
  almost 
  every 
  year 
  are 
  the 
  hairy 
  caterpillars 
  of 
  dry 
  crops, 
  the 
  castor 
  

   semi-looper, 
  the 
  mango-hopper, 
  caterpillars 
  and 
  plant 
  lice 
  of 
  tobacco, 
  

   the 
  groundnut 
  leaf 
  -miner, 
  the 
  stem 
  weevil, 
  plant 
  lice 
  and 
  boll 
  worms 
  of 
  

   cotton, 
  the 
  gram 
  caterpillar, 
  the 
  cholam 
  ear-head 
  bug, 
  the 
  gingelly 
  cater- 
  

   pillar, 
  the 
  sann-hemp 
  caterpillars 
  and 
  sugarcane 
  borers. 
  The 
  hairy 
  

   caterpillar 
  {Amsacta 
  albistriga) 
  is 
  particularly 
  bad 
  in 
  the 
  central 
  districts. 
  

   South 
  Arcot 
  and 
  parts 
  of 
  the 
  Ceded 
  Districts 
  from 
  June 
  on 
  to 
  October 
  

   and 
  attacks 
  almost 
  all 
  dry 
  and 
  garden 
  crops, 
  such 
  as 
  sorghum, 
  cumbu, 
  

   groundnut, 
  ragi, 
  cotton, 
  etc. 
  The 
  semi-looper 
  (Achcea 
  Janata) 
  is 
  very 
  

   destructive 
  to 
  castor 
  in 
  the 
  Ceded 
  Districts 
  from 
  October 
  to 
  December 
  

   and 
  later 
  on 
  in 
  Salem 
  and 
  Coimbatore. 
  The 
  Mango 
  Hoppers 
  (chiefly 
  

  

  