﻿proceedings 
  of 
  the 
  fourth 
  entomological 
  meeting 
  109 
  

  

  Beetles. 
  

  

  The 
  following 
  beetles 
  have 
  been 
  definitely 
  observed 
  to 
  be 
  capable 
  

   of 
  injuring 
  gramineous 
  plants 
  in 
  most 
  cases 
  with 
  external 
  symptoms 
  

   similar 
  to 
  those 
  caused 
  by 
  borers 
  : 
  — 
  

  

  Oryctes 
  rhinocerus 
  gnawing 
  sugarcane 
  setts 
  and 
  shoots 
  at 
  Coimbatore 
  

  

  and 
  in 
  Travancore. 
  {South 
  Indian 
  Insects, 
  p. 
  151). 
  

   Xylotrupes 
  gideon 
  is 
  known 
  to 
  attack 
  sugarcane 
  in 
  this 
  manner. 
  

   AUssonotum 
  itnpressicolle 
  caused 
  serious 
  damage 
  to 
  sugarcane 
  in 
  

  

  the 
  Kamrup 
  Farm 
  in 
  Assam 
  in 
  April-May 
  in 
  1919 
  by 
  gnawing 
  

  

  young 
  shoots 
  and 
  boring 
  into 
  setts 
  and 
  ratoon 
  stumps. 
  It 
  did 
  

  

  similar 
  damage 
  to 
  thick 
  grasses 
  also. 
  

   AUssonotum 
  piceum 
  did 
  similar 
  damage 
  as 
  the 
  above 
  in 
  the 
  Kamrup 
  

  

  Farm. 
  

   Heteronychus 
  sublcevis 
  worked 
  in 
  company 
  with 
  the 
  above 
  two 
  in 
  

  

  the 
  Kamrup 
  Farm. 
  (Plate 
  XVI, 
  fig. 
  3.) 
  

   Heteronychus 
  sacchari 
  recorded 
  to 
  have 
  caused 
  extensive 
  damage 
  

  

  to 
  sugarcane 
  in 
  Rangpur. 
  (F. 
  I. 
  Coleopt. 
  Lamellicornia, 
  pt. 
  I, 
  

  

  p. 
  297). 
  

   Pentodon 
  bengalense, 
  Arrow, 
  gnawed 
  into 
  sugarcane 
  shoots 
  and 
  

  

  setts 
  in 
  Tarnab 
  Farm 
  at 
  Peshawar 
  in 
  May 
  1912. 
  

   Pentodon 
  bispinifrons 
  recorded 
  to 
  have 
  occurred 
  on 
  sugarcane 
  at 
  

  

  Baroda, 
  apparently 
  causing 
  similar 
  damage 
  as 
  the 
  above. 
  

   Phyllognathus 
  dionysius 
  reported 
  to 
  cut 
  stems 
  of 
  young 
  paddy 
  

  

  plants 
  in 
  South 
  Kanara. 
  

   Autoserica 
  sp. 
  observed 
  to 
  gnaw 
  into 
  sugarcane 
  shoots 
  in 
  March 
  

  

  at 
  Pusa. 
  

   Apogonia 
  proxima 
  observed 
  to 
  live 
  among 
  the 
  roots 
  and 
  feed 
  on 
  

  

  the 
  shoots 
  of 
  Saccharum 
  spontanemn 
  at 
  Pusa. 
  

   Protcetia 
  alboguttata 
  observed 
  at 
  Pusa 
  to 
  feed 
  similarly 
  on 
  Panicum 
  

  

  shoots. 
  

  

  The 
  beetles 
  named 
  above 
  work 
  underground 
  and 
  feed 
  as 
  shown 
  in 
  

   our 
  former 
  Plate. 
  Other 
  beetles 
  and 
  weevils 
  are 
  known 
  to 
  feed 
  on 
  

   gramineous 
  plants, 
  usually 
  eating 
  leaves 
  or 
  new 
  shoots. 
  Although 
  they 
  

   may 
  cause 
  a 
  set 
  back 
  to 
  the 
  growth 
  of 
  the 
  plants 
  they 
  do 
  not 
  kill 
  

   them. 
  The 
  following 
  may 
  be 
  mentioned 
  : 
  — 
  

  

  Tanymecus 
  indicus 
  is 
  known 
  to 
  nibble 
  wheat 
  seedlings 
  in 
  the 
  Punjab 
  

   and 
  juar 
  {Andropogon 
  sorghum) 
  seedlings 
  in 
  Surat. 
  

  

  Tanymecus 
  hispidus 
  occurred 
  in 
  large 
  numbers 
  in 
  Messrs. 
  Turner, 
  

   Morrison 
  & 
  Co.'s 
  sugarcane 
  plantations 
  in 
  Cooch 
  Behar. 
  

  

  Tanymecus 
  sciurus 
  was 
  observed 
  by 
  P. 
  C. 
  Sen 
  to 
  eat 
  tender 
  leaves 
  

   of 
  young 
  sugarcane 
  shoots 
  at 
  Rangpur. 
  

  

  