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  lepidopterous 
  insects, 
  Leucoptera 
  (Cemiostoma) 
  cojfeella* 
  and 
  Graci- 
  

   laria 
  coffeifoliella, 
  both 
  of 
  which 
  are 
  attacked 
  by 
  a 
  Chalcid 
  (Eulophus 
  

   borbonicus, 
  Gd.) 
  and 
  a 
  Braconid 
  {Apanteles 
  bordagei, 
  Gd.) 
  ; 
  L. 
  coffeella 
  

   is 
  kept 
  well 
  in 
  check 
  by 
  these 
  parasites 
  in 
  Reunion, 
  whereas 
  in 
  the 
  

   Antilles 
  serious 
  damage 
  is 
  done 
  by 
  this 
  moth. 
  Three 
  species 
  of 
  

   AcRiDiiDAE 
  are 
  found 
  in 
  Reunion. 
  Locusta 
  migratoria, 
  Acridium 
  

   septemfasciatmn 
  and 
  A. 
  rubellum, 
  and 
  in 
  certain 
  years 
  these 
  insects 
  

   have 
  caused 
  serious 
  damage 
  to 
  sugar-canes. 
  An 
  attempt 
  was 
  made 
  

   to 
  combat 
  A. 
  septemfasciatum, 
  which 
  was 
  particularly 
  prevalent 
  in 
  

   1901, 
  by 
  introducing 
  the 
  fungus 
  disease 
  due 
  to 
  Mucor 
  exitiosus, 
  Mass. 
  

   In 
  the 
  laboratory 
  the 
  result 
  Avas 
  very 
  satisfactory, 
  as 
  it 
  was 
  there 
  pos- 
  

   sible 
  to 
  maintain 
  the 
  temperature 
  and 
  moisture 
  conditions 
  most 
  

   favourable 
  to 
  the 
  propagation 
  of 
  the 
  fungus 
  ; 
  but 
  in 
  the 
  field 
  the 
  same 
  

   success 
  was 
  not 
  met 
  with, 
  possibly 
  owing 
  to 
  the 
  coldness 
  and 
  dryness 
  

   of 
  the 
  season. 
  In 
  1765 
  Poivre 
  introduced 
  the 
  mynah 
  of 
  the 
  PhiUppines 
  

   (Acridotheres 
  tristis, 
  Vieill.) 
  into 
  Reunion 
  ; 
  this 
  bird 
  which 
  used 
  to 
  

   prey 
  upon 
  crickets 
  and 
  grasshoppers 
  is 
  now 
  of 
  Httle 
  use 
  in 
  controlling 
  

   these 
  insects, 
  as 
  it 
  has 
  become 
  practically 
  frugivorous 
  in 
  habit. 
  

  

  The 
  Coccid 
  Orthezia 
  insignis 
  is 
  plentiful 
  in 
  Reunion. 
  At 
  first 
  it 
  

   was 
  recorded 
  as 
  feeding 
  mainly 
  upon 
  the 
  noxious 
  plant 
  Lantana 
  

   camara 
  (Corbeille 
  d'or), 
  thereby 
  being 
  beneficial 
  ; 
  but 
  lately 
  it 
  has 
  taken 
  

   to 
  feeding 
  on 
  cultivated 
  plants 
  and 
  must 
  be 
  regarded 
  as 
  a 
  pest. 
  An 
  

   account 
  of 
  this 
  insect 
  in 
  other 
  parts 
  of 
  the 
  world 
  and 
  its 
  food-plants 
  

   is 
  given. 
  Giard 
  suggested 
  that 
  the 
  waxy 
  secretion 
  deposited 
  by 
  this 
  

   insect 
  might 
  be 
  utihsed 
  in 
  the 
  making 
  of 
  wax 
  candles, 
  as 
  it 
  is 
  used 
  in 
  

   China 
  for 
  the 
  preparation 
  of 
  pe-la 
  wax. 
  Another 
  Coccid 
  pest 
  is 
  

   Ceroplastes 
  vinsoni 
  which 
  attacks 
  the 
  tea 
  plant, 
  mango 
  trees, 
  guavas, 
  

   bibassier 
  (Eriobotrya 
  japonica), 
  Agauria 
  pyrifolia, 
  Quivisia 
  heterophyllay 
  

   and 
  Aphloia 
  theaeformis. 
  

  

  Two 
  scale-insects 
  are 
  harmful 
  to 
  the 
  coffee 
  plant, 
  namely 
  Saissetia 
  

   coffeae 
  and 
  S. 
  nigra, 
  and 
  also 
  Pseudococcus 
  adonidum, 
  which 
  attacks 
  

   not 
  only 
  the 
  young 
  shoots, 
  but 
  also 
  the 
  roots 
  ; 
  this 
  species 
  is 
  devoured 
  

   by 
  a 
  Coccinellid, 
  Scymnus 
  rotundatus, 
  Motsch. 
  Cocoa 
  trees 
  are 
  

   attacked 
  by 
  the 
  Coccid 
  Aspidiotus 
  destructor, 
  Sign. 
  ; 
  although 
  no 
  steps 
  

   are 
  taken 
  to 
  combat 
  this 
  insect, 
  it 
  remains 
  w^ell 
  under 
  control, 
  probably 
  

   owing 
  to 
  the 
  fact 
  that 
  it 
  is 
  parasitised 
  by 
  certain 
  Chalcids. 
  Vanilla 
  

   plantations 
  are 
  attacked 
  by 
  CeratapJiis 
  lataniae, 
  Licht. 
  A 
  species 
  of 
  

   Psyllid 
  (Trioza 
  litseae, 
  Gd.) 
  has 
  been 
  found 
  on 
  plants 
  of 
  the 
  laurel 
  

   family, 
  and 
  also 
  on 
  Orchids 
  whose 
  fruit 
  it 
  destroys 
  ; 
  it 
  is 
  possible 
  

   that 
  at 
  any 
  time 
  it 
  may 
  attack 
  the 
  vanilla 
  ; 
  to 
  avoid 
  this 
  possibiUty 
  

   the 
  author 
  suggests 
  cutting 
  down 
  the 
  laurels 
  that 
  at 
  present 
  form 
  its 
  

   staple 
  food. 
  

  

  Caesar 
  (L.). 
  The 
  San 
  Jos§ 
  and 
  Oyster-Shell 
  Scales. 
  — 
  Ontario 
  Dept. 
  

   Agric, 
  Toronto, 
  Ont., 
  Bull 
  219, 
  Jan. 
  1914, 
  30 
  pp., 
  16 
  %s. 
  

  

  The 
  original 
  home 
  of 
  the 
  San 
  Jose 
  scale 
  is 
  China. 
  It 
  was 
  introduced 
  

   into 
  San 
  Jose, 
  CaHfornia, 
  about 
  1870. 
  By 
  1893 
  or 
  1894 
  it 
  had 
  spread 
  

   all 
  over 
  most 
  of 
  the 
  United 
  States 
  and 
  had 
  even 
  been 
  brought 
  into 
  

   Ontario. 
  It 
  was 
  doubtless 
  brought 
  in 
  on 
  nursery 
  stock, 
  and 
  the 
  

   insect 
  can 
  Hve 
  and 
  thrive 
  at 
  least 
  wherever 
  peach 
  trees 
  can 
  be 
  grown, 
  

  

  * 
  See 
  this 
  Review, 
  Ser. 
  A, 
  i, 
  p. 
  105, 
  note. 
  

  

  