﻿110 
  PROCEEDTNGS 
  OF 
  THE 
  FOUETII 
  ENTOMOLOGICAL 
  MEETING 
  

  

  Myllocerus 
  blandus 
  is 
  commonly 
  found 
  feeding 
  on 
  tender 
  leaves 
  of 
  

   young 
  sugarcane, 
  maize, 
  wheat, 
  rice, 
  etc. 
  

  

  Myllocerus 
  discolor 
  and 
  M. 
  11 
  — 
  fustulatus 
  also 
  feed 
  like 
  M. 
  blandus. 
  

  

  Gonoce])lialum 
  hofmannseggi, 
  Steven., 
  has 
  been 
  recorded 
  as 
  a 
  pest 
  

   of 
  Eleusine 
  coracana 
  in 
  Mysore, 
  (Mysore 
  Bull, 
  No. 
  5, 
  by 
  Messrs. 
  

   Coleman 
  and 
  Kunhi 
  Kannan) 
  . 
  

  

  The 
  Dynastine 
  beetles 
  may 
  be 
  looked 
  upon 
  as 
  serious 
  pests. 
  Although 
  

   they 
  may 
  not 
  occur 
  as 
  regular 
  pests 
  they 
  are 
  capable 
  of 
  doing 
  serious 
  

   and 
  extensive 
  damage, 
  as 
  will 
  appear 
  from 
  the 
  following 
  account 
  of 
  

   beetle 
  pests 
  in 
  the 
  sugarcane 
  farm 
  at 
  Kamrup, 
  Assam. 
  

  

  The 
  Kamrup 
  Farm 
  is 
  situated 
  in 
  the 
  midst 
  of 
  an 
  extensive 
  piece 
  of 
  

   waste 
  land 
  running 
  along 
  the 
  base 
  of 
  the 
  Bhutan 
  Hills 
  and 
  having 
  on 
  

   it 
  a 
  thick 
  and 
  mixed 
  growth 
  of 
  various 
  kinds 
  of 
  tall 
  grasses. 
  About 
  

   50,000 
  acres 
  of 
  this 
  land 
  is 
  said 
  to 
  be 
  capable 
  of 
  being 
  rendered 
  arable. 
  

   The 
  Farm 
  has 
  brought 
  under 
  cultivation 
  about 
  800 
  acres 
  divided 
  into 
  

   18 
  blocks, 
  viz., 
  6 
  blocks 
  of 
  60 
  acres, 
  2 
  blocks 
  of 
  55 
  acres, 
  one 
  block 
  of 
  

   54 
  acres, 
  2 
  blocks 
  of 
  42 
  acres, 
  one 
  block 
  of 
  34 
  acres, 
  2 
  blocks 
  of 
  30 
  acres, 
  

   one 
  block 
  of 
  25 
  acres, 
  one 
  block 
  of 
  16 
  acres, 
  one 
  block 
  of 
  15 
  acres 
  and 
  

   one 
  block 
  of 
  11 
  acres. 
  In 
  1919 
  there 
  were 
  241 
  acres 
  of 
  plant 
  cane 
  and 
  

   229 
  acres 
  of 
  ratoon 
  cane. 
  In 
  the 
  other 
  plots 
  Sesbania 
  was 
  being 
  grown 
  

   for 
  green 
  manuring. 
  

  

  The 
  sugarcane 
  of 
  the 
  entire 
  Farm 
  was 
  remarkably 
  free 
  from 
  borers 
  

   (5th 
  to 
  15th 
  May 
  1919). 
  The 
  damage 
  was 
  due 
  entirely 
  to 
  three 
  species 
  

   of 
  blacli 
  beetles, 
  viz., 
  Alissonotum 
  impressicolle, 
  A. 
  piceum 
  and 
  Hetei'ony- 
  

   chus 
  sublcBvis. 
  They 
  worked 
  underground 
  chewing 
  and 
  gnawing 
  into 
  

   the 
  bases 
  of 
  young 
  canes 
  which 
  in 
  extreme 
  cases 
  were 
  almost 
  wholly 
  

   cut 
  across. 
  Young 
  buds 
  which 
  were 
  somewhat 
  grown 
  but 
  had 
  not 
  yet 
  

   emerged 
  out 
  of 
  the 
  ground 
  were 
  also 
  similarly 
  destroyed. 
  The 
  

   beetles 
  bored 
  into 
  setts 
  and 
  also 
  into 
  the 
  bases 
  of 
  canes 
  already 
  

   formed. 
  This 
  form 
  of 
  damage 
  to 
  sugarcane 
  by 
  adult 
  beetles 
  on 
  such 
  

   a 
  scale 
  had 
  never 
  before 
  been 
  observed 
  although 
  sporadic 
  cases 
  

   were 
  known 
  as 
  described 
  above. 
  

  

  The 
  relative 
  abundance 
  of 
  the 
  three 
  species 
  can 
  be 
  judged 
  from 
  

   the 
  number 
  obtained 
  of 
  each 
  out 
  of 
  a 
  total 
  collection 
  cf 
  286 
  made 
  at 
  

   random 
  in 
  the 
  second 
  week 
  of 
  May 
  1919. 
  

  

  Alissonotum 
  impressicolle 
  ....... 
  2G4 
  

  

  ,, 
  piceum 
  ........ 
  19 
  

  

  Heteronychus 
  sublcevis 
  ........ 
  3 
  

  

  They 
  were 
  first 
  observed 
  on 
  the 
  10th 
  April. 
  They 
  spread 
  over 
  the 
  

   whole 
  locality 
  and 
  the 
  Farm 
  area 
  received 
  its 
  share. 
  They 
  did 
  not 
  

  

  