﻿peoceediisgs 
  of 
  the 
  fourth 
  entomological 
  meeting 
  107 
  

  

  Beetle 
  grubs. 
  

  

  Beetle 
  grubs 
  and 
  beetles 
  have 
  been 
  grouped 
  separately 
  for 
  the 
  reason 
  

   that 
  the 
  grubs 
  themselves 
  may 
  prove 
  to 
  be 
  injurious 
  in 
  some 
  cases, 
  

   the 
  resultant 
  beetles 
  not 
  causing 
  any 
  appreciable 
  damage. 
  Recently 
  

   in 
  1920 
  there 
  was 
  a 
  report 
  of 
  serious 
  damage 
  to 
  a 
  young 
  maize 
  crop 
  

   in 
  Belgaum 
  caused 
  by 
  the 
  grubs 
  of 
  Phyllognathus 
  dionysius. 
  Some 
  

   years 
  ago, 
  in 
  1906, 
  from 
  the 
  same 
  place 
  there 
  was 
  a 
  report 
  of 
  similar 
  

   damage 
  to 
  young 
  paddy 
  plants 
  by 
  the 
  same 
  grubs. 
  But 
  the 
  beetles 
  

   have 
  not 
  been 
  reported 
  to 
  behave 
  as 
  pests 
  there. 
  On 
  the 
  other 
  hand, 
  

   enormous 
  damage 
  was 
  done 
  in 
  1919 
  to 
  about 
  500 
  acres 
  of 
  sugarcane 
  

   in 
  the 
  Kamrup 
  Farm 
  in 
  Assam 
  by 
  Alissonotum 
  impressicolle 
  beetles 
  

   and 
  not 
  by 
  the 
  grubs. 
  Also 
  such 
  damage 
  cannot 
  be 
  caused 
  by 
  grubs. 
  

  

  The 
  giubs 
  of 
  the 
  following 
  beetles 
  have 
  been 
  observed 
  to 
  cause 
  

   damage 
  to 
  gramineous 
  plants, 
  in 
  some 
  cases 
  bringing 
  about 
  dead-hearts 
  

   exactly 
  like 
  the 
  internal 
  borers 
  : 
  — 
  

  

  Anomala 
  bengalensis. 
  The 
  larva 
  gnawed 
  sugarcane 
  shoots 
  at 
  Pusa 
  

   and 
  Dacca 
  in 
  the 
  field 
  and 
  bored 
  into 
  sugarcane 
  setts 
  in 
  the 
  

   Insectary. 
  

  

  Alissonotum 
  picevm. 
  — 
  The 
  larva 
  gnawed 
  into 
  sugarcane 
  shoots 
  at 
  

   Pusa 
  in 
  the 
  field 
  and 
  bored 
  sugarcane 
  setts 
  in 
  the 
  Insectary. 
  

  

  The 
  grubs 
  of 
  the 
  following 
  have 
  been 
  observed 
  to 
  live 
  in 
  the 
  soil 
  

   among 
  the 
  roots 
  of 
  gramineous 
  plants, 
  apparently 
  feeding 
  on 
  the 
  roots, 
  

   and 
  some 
  of 
  them 
  are 
  reported 
  to 
  cause 
  rather 
  serious 
  damage 
  in 
  this 
  

   manner. 
  

  

  Autosericainsanabilis, 
  Brenske. 
  Larva 
  among 
  sugarcane, 
  lemon, 
  

  

  soybean 
  and 
  castor 
  roots. 
  

   Apogonia 
  proxima, 
  Waterh. 
  Larva 
  among 
  SaccJiarum 
  spontaneum 
  

   * 
  roots. 
  

  

  Unidentified 
  Melolonthid 
  (C. 
  S. 
  1797). 
  Larva 
  among 
  SaccJianim 
  

  

  spontaneum 
  roots 
  at 
  Pusa. 
  

   Anomala 
  polita, 
  Blanch. 
  Larva 
  among 
  rice 
  and 
  grass 
  roots 
  at 
  

  

  Pusa, 
  Muzaffarpur 
  and 
  Nadia, 
  and 
  also 
  in 
  leaf 
  mould 
  at 
  Pusa. 
  

   Anomala 
  varicolor, 
  Gyll. 
  Larva 
  among 
  Saccharum 
  spontaneum 
  and 
  

  

  oat 
  roots 
  at 
  Pusa. 
  

   Anomala 
  biJiarensis, 
  Arrow. 
  Larva 
  among 
  sugarcane, 
  Saccharum 
  

  

  spontaneum 
  and 
  Ficus 
  roots 
  at 
  Pusa. 
  

   Anomala 
  dussumieri, 
  Bl. 
  Larva 
  among 
  sugarcane 
  roots 
  in 
  the 
  

  

  Kamrup 
  Farm 
  in 
  Assam. 
  

   Adoretus 
  versutus, 
  Har. 
  Larva 
  among 
  sugarcane 
  and 
  oat 
  roots 
  at 
  

  

  Pusa. 
  (Plate 
  XVI, 
  fig. 
  1.) 
  

  

  