﻿RErORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  27I 
  

  

  chestnuts" 
  are 
  made 
  for 
  the 
  exit 
  of 
  the 
  larva 
  (PI. 
  VIII, 
  fig. 
  5). 
  The 
  

   female 
  lives 
  but 
  a 
  short 
  time, 
  — 
  a 
  week 
  or 
  two 
  at 
  the 
  most. 
  All 
  of 
  the 
  

   larvae 
  of 
  this 
  species 
  enter 
  the 
  ground 
  in 
  the 
  autumn, 
  none 
  wintering 
  

   in 
  the 
  nuts 
  although 
  thought 
  probable 
  by 
  some 
  writers. 
  

  

  The 
  adults 
  of 
  B. 
  rectus 
  appear 
  also 
  about 
  the 
  time 
  of 
  the 
  blossoming 
  

   of 
  the 
  chestnuts. 
  When 
  rearing 
  this 
  species, 
  Dr. 
  Hamilton 
  found 
  that 
  its 
  

   appearance 
  in 
  the 
  breeding 
  cage 
  was 
  much 
  more 
  irregular 
  than 
  was 
  that 
  

   of 
  the 
  preceding, 
  — 
  varying 
  from 
  June 
  28 
  to 
  October 
  i. 
  On 
  the 
  latter 
  

   date, 
  there 
  were 
  in 
  the 
  cage 
  pupae 
  in 
  various 
  stages 
  and 
  many 
  larvae 
  that 
  

   would 
  doubtless 
  live 
  over 
  the 
  approaching 
  winter. 
  A 
  delay 
  until 
  the 
  

   second 
  season 
  is 
  quite 
  common 
  in 
  this 
  species 
  and 
  is 
  one 
  of 
  nature's 
  

   safeguards 
  against 
  extermination 
  should 
  there 
  be 
  an 
  entire 
  failure 
  of 
  

   the 
  crop 
  in 
  any 
  one 
  year, 
  as 
  happens 
  occasionally. 
  The 
  preceding 
  species 
  

   has 
  been 
  reared 
  only 
  from 
  chestnuts, 
  while 
  B. 
  rectus 
  is 
  known 
  to 
  breed 
  

   also 
  in 
  chinquapin 
  nuts 
  and 
  acorns. 
  This 
  diversity 
  of 
  food 
  habit 
  in 
  

   B. 
  rectus 
  may 
  account 
  in 
  part 
  for 
  the 
  marked 
  irregularity 
  of 
  the 
  appear- 
  

   ance 
  of 
  the 
  weevils. 
  There 
  appears 
  to 
  be 
  no 
  record 
  of 
  B. 
  probos- 
  

   cideus 
  remaining 
  over 
  until 
  the 
  second 
  year 
  in 
  the 
  pupa 
  state, 
  although 
  

   it 
  is 
  probable 
  that 
  such 
  instances 
  occur. 
  The 
  method 
  of 
  oviposition 
  of 
  

   the 
  smaller 
  weevil 
  appears 
  to 
  be 
  practically 
  the 
  same 
  as 
  in 
  the 
  larger 
  

   species. 
  

  

  Urosigalphus 
  armatus 
  Ashm., 
  is 
  the 
  only 
  known 
  parasite 
  of 
  this 
  genus, 
  

   having 
  been 
  reared 
  from 
  all 
  the 
  species 
  except 
  B. 
  obtusics 
  Blanch. 
  

  

  Remedies 
  and 
  Preventives. 
  

  

  It 
  would 
  not 
  be 
  worth 
  while 
  to 
  attempt 
  to 
  prevent 
  oviposition 
  in 
  

   the 
  grownng 
  nuts 
  by 
  poisoning 
  the 
  weevils, 
  even 
  if 
  practicable, 
  on 
  ac- 
  

   count 
  of 
  the 
  labor 
  involved. 
  Moreover, 
  it 
  has 
  not 
  been 
  shown, 
  as 
  in 
  

   the 
  case 
  of 
  the 
  related 
  plum 
  curculio, 
  Conotrachelus 
  iiermphar^ 
  that 
  these 
  

   weevils 
  could 
  be 
  killed 
  in 
  this 
  manner. 
  Their 
  short 
  adult 
  existence 
  in 
  

   comparison 
  with 
  that 
  of 
  the 
  plum 
  curculio 
  would 
  lead 
  one 
  to 
  doubt 
  the 
  

   efficacy 
  of 
  any 
  such 
  measure. 
  

  

  The 
  best 
  methods 
  of 
  controlling 
  these 
  insects 
  will 
  be 
  in 
  preventive 
  

   measures. 
  All 
  infested 
  nuts 
  should 
  be 
  destroyed 
  each 
  year 
  before 
  their 
  

   occupants 
  have 
  had 
  opportunity 
  for 
  leaving 
  them 
  and 
  entering 
  the 
  

   ground 
  for 
  their 
  transformations. 
  When 
  the 
  nuts 
  are 
  not 
  picked 
  from 
  

   the 
  trees 
  they 
  should 
  be 
  gathered 
  as 
  soon 
  as 
  they 
  fall 
  and 
  tested 
  by 
  turn- 
  

   ing 
  them 
  into 
  a 
  vessel 
  of 
  water, 
  when, 
  by 
  brisk 
  stirring, 
  most 
  of 
  the 
  

   wormy 
  ones, 
  being 
  Hghter 
  than 
  the 
  liquid, 
  will 
  float 
  to 
  the 
  surface 
  and 
  

   may 
  easily 
  be 
  removed 
  and 
  destroyed. 
  The 
  others 
  should 
  be 
  taken 
  from 
  

   the 
  water 
  and 
  after 
  drying, 
  placed 
  in 
  a 
  tight 
  receptacle 
  until 
  shipped, 
  

  

  