﻿235 
  

  

  DuRRANT 
  (J. 
  H.) 
  & 
  Beveridge 
  (W. 
  W. 
  0.). 
  Army 
  Biscuit 
  Enquiry 
  : 
  

   Supplementary 
  Notes. 
  — 
  Jl. 
  Royal 
  Army 
  Med. 
  Corps, 
  London, 
  xxii, 
  

   no. 
  2, 
  Feb. 
  1914, 
  p. 
  208. 
  

  

  For 
  practical 
  purposes 
  it 
  has 
  been 
  necessary 
  to 
  ascertain 
  the 
  exact 
  

   average 
  dimensions 
  of 
  the 
  ova 
  of 
  Ephestia 
  kilhniella, 
  Z., 
  and 
  a 
  table 
  of 
  

   careful 
  measurements 
  has 
  been 
  furnished 
  by 
  Major 
  S. 
  Lyle 
  Cummins, 
  

   R.A.M.C. 
  The 
  average 
  length 
  appears 
  to 
  be 
  1*16 
  (millimetres) 
  and 
  

   the 
  breadth 
  0"63 
  (milhmetres). 
  From 
  these 
  measurements 
  it 
  would 
  

   appear 
  that 
  if, 
  when 
  screening 
  flour, 
  a 
  mesh 
  of 
  IGO 
  strands 
  to 
  the 
  inch 
  

   be 
  rehed 
  upon 
  to 
  eliminate 
  the 
  ova 
  of 
  E. 
  huhniella, 
  such 
  reliance 
  must 
  

   rest 
  upon 
  the 
  assumption 
  that 
  the 
  ova 
  of 
  this 
  moth 
  always 
  approach 
  

   the 
  screen 
  broadside-on. 
  

  

  At 
  a 
  discussion 
  as 
  to 
  the 
  possibility 
  of 
  placing 
  contracts 
  at 
  any 
  

   specified 
  date 
  or 
  dates, 
  it 
  was 
  demonstrated 
  that, 
  so 
  far 
  as 
  E. 
  huhniella 
  

   was 
  concerned, 
  any 
  immunity 
  from 
  this 
  insect 
  cannot 
  be 
  hoped 
  for 
  

   dming 
  the 
  winter 
  months, 
  since 
  moths 
  are 
  recorded 
  as 
  emerging 
  in 
  

   September, 
  October, 
  and 
  Xovember, 
  and 
  they 
  continue 
  to 
  emerge 
  

   plentifully 
  in 
  December, 
  January, 
  etc. 
  ; 
  in 
  fact, 
  the 
  species 
  seems 
  to 
  be 
  

   normally 
  an 
  autumnal 
  insect. 
  

  

  [The 
  standard 
  of 
  measurement 
  of 
  the 
  ova 
  is 
  not 
  stated, 
  but 
  is 
  

   assumed 
  to 
  be 
  millimetres. 
  — 
  Ed.] 
  

  

  Champion 
  (H. 
  G.). 
  The 
  Ravages 
  of 
  Bupalus 
  piniarius 
  in 
  Prussia. 
  — 
  

   Entomologists^ 
  Monthly 
  Magazine, 
  London, 
  Feb. 
  1914, 
  p. 
  41. 
  

  

  During 
  a 
  visit 
  to 
  the 
  forests 
  of 
  the 
  Oberforsterei 
  of 
  Salmtinster, 
  

   Hessen 
  Nassau, 
  the 
  author 
  had 
  the 
  opportunity 
  of 
  seeing 
  the 
  great 
  

   extent 
  to 
  which 
  the 
  common 
  Geometrid, 
  Bupalus 
  piniarius, 
  can 
  

   multiply, 
  and 
  the 
  damage 
  the 
  larvae 
  can 
  cause 
  to 
  the 
  Scots 
  Pine. 
  

   The 
  pronomiced 
  thinness 
  of 
  the 
  crown 
  later 
  in 
  the 
  summer 
  shows 
  

   where 
  the 
  so-called 
  " 
  Spanner 
  " 
  has 
  been 
  at 
  work. 
  The 
  most 
  serious 
  

   attack 
  was 
  over 
  some 
  fifty 
  acres, 
  where 
  the 
  trees 
  were 
  60-70 
  years 
  

   old 
  ; 
  in 
  this 
  area 
  336 
  pupae 
  were 
  found 
  within 
  40 
  square 
  feet 
  ; 
  a 
  few 
  

   of 
  these 
  (some 
  6 
  or 
  7 
  only), 
  appeared 
  red 
  and 
  contained 
  the 
  larvae 
  of 
  

   an 
  unknown 
  parasite. 
  

  

  Jack 
  (R. 
  W.). 
  The 
  Cabbage 
  Web- 
  Worm. 
  — 
  Rhodesia 
  Agric. 
  JL, 
  

   Salisbury, 
  xi, 
  no. 
  3, 
  Feb. 
  1914, 
  pp. 
  416-422, 
  1 
  pi. 
  

  

  The 
  cabbage 
  web-worm, 
  a 
  pest 
  of 
  cabbage 
  and 
  allied 
  plants, 
  has 
  

   caused 
  serious 
  damage 
  from 
  time 
  to 
  time 
  in 
  Southern 
  Rhodesia. 
  In 
  

   the 
  case 
  of 
  such 
  plants 
  as 
  turnips, 
  kohl-rabi, 
  etc., 
  which 
  have 
  swollen 
  

   crowns, 
  the 
  caterpillar 
  usually 
  occurs 
  within 
  the 
  tissues. 
  In 
  young 
  

   plants 
  of 
  cabbage, 
  kale, 
  etc., 
  the 
  heart 
  is 
  attacked 
  and 
  the 
  insect 
  forms 
  

   a 
  groove 
  in 
  the 
  stem 
  and 
  is 
  covered 
  by 
  a 
  web, 
  under 
  which 
  it 
  feeds. 
  

   This 
  insect 
  is 
  midoubtedly 
  the 
  same 
  as 
  that 
  which, 
  in 
  the 
  United 
  

   States 
  of 
  America, 
  is 
  called 
  the 
  " 
  imported 
  cabbage 
  web- 
  worm 
  " 
  

   {Hellula 
  undalis, 
  F.) 
  It 
  seems 
  to 
  be 
  susceptible 
  to 
  even 
  light 
  frosts 
  

   and 
  probably 
  ranges 
  from 
  the 
  Mediterranean 
  to 
  Southern 
  Rhodesia 
  

   as 
  an 
  indigenous 
  species. 
  Detailed 
  descriptions 
  of 
  the 
  various 
  hfe- 
  

   stages 
  are 
  given. 
  The 
  difterent 
  broods 
  overlap 
  greatly, 
  all 
  stages 
  

   being 
  found 
  throughout 
  the 
  growing 
  season 
  and 
  during 
  the 
  greater 
  

   part 
  of 
  winter 
  wherever 
  food 
  is 
  available. 
  Lack 
  of 
  food 
  between 
  

  

  (C26) 
  C2 
  

  

  