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  • 
  665 
  

  

  which 
  were 
  Pteromalus 
  puparum 
  and 
  Apanteles 
  gloineratus, 
  were 
  

   equally 
  active. 
  A 
  Cynipid 
  parasite, 
  Trybliographa 
  anthomyiae, 
  was 
  

   reared 
  from 
  the 
  pupa 
  of 
  Chortophila 
  {Phorhia) 
  brassicae, 
  the 
  cabbage 
  

   root-maggot, 
  which 
  caused 
  considerable 
  reduction 
  in 
  the 
  yield 
  of 
  

   early 
  cabbages 
  ; 
  large 
  numbers 
  of 
  the 
  Staphyhnid, 
  Aleochara 
  nitida, 
  

   which 
  preys 
  on 
  the 
  maggot, 
  were 
  present 
  in 
  the 
  infested 
  soil. 
  The 
  

   turnips 
  of 
  experimental 
  plots 
  were 
  attacked 
  by 
  Chortophila 
  {Phorhia) 
  

   fiisciceps, 
  an 
  Anthomyiid 
  much 
  resembling 
  the 
  cabbage 
  root-maggot. 
  

   The 
  beet 
  leaf-miner, 
  Chortophila 
  (Pegomyia) 
  vicina, 
  attacked 
  spinach 
  

   in 
  the 
  spring, 
  causing 
  considerable 
  damage 
  ; 
  beets 
  did 
  not 
  suffer 
  

   much, 
  but 
  some 
  varieties 
  of 
  mangels 
  were 
  severely 
  attacked. 
  The 
  

   Hemipteron, 
  Coriscus 
  ferus, 
  was 
  abundant 
  on 
  the 
  affected 
  mangel 
  

   leaves 
  ; 
  it 
  was 
  not 
  observed 
  feeding 
  on 
  the 
  maggot 
  in 
  the 
  fields, 
  but 
  

   specimens 
  brought 
  to 
  the 
  laboratory 
  fed 
  greedily 
  on 
  maggots 
  put 
  in 
  

   the 
  same 
  cage. 
  A 
  small 
  Braconid 
  parasite 
  was 
  bred 
  from 
  the 
  pupa 
  

   of 
  P. 
  vicina, 
  and 
  parasitic 
  larvae, 
  probably 
  of 
  this 
  Braconid, 
  were^ 
  

   observed 
  within 
  the 
  maggot. 
  The 
  cabbage 
  Aphis, 
  although 
  present 
  

   in 
  numbers, 
  was 
  effectively 
  kept 
  in 
  check 
  by 
  ladybirds. 
  Crioceris 
  

   12-punctata 
  was 
  abundant, 
  but 
  no 
  specimens 
  of 
  C. 
  asparagi 
  were 
  

   observed. 
  The 
  forest 
  and 
  orchard 
  tent-caterpillars, 
  Malacosoma 
  

   disstria 
  and 
  M. 
  americana, 
  were 
  the 
  most 
  abundant 
  and 
  destructive 
  

   insects 
  of 
  the 
  season. 
  All 
  unsprayed 
  orchards 
  in 
  the 
  vicinity 
  of 
  

   Macdonald 
  College 
  were 
  completely 
  defohated, 
  as 
  well 
  as 
  many 
  shade 
  

   trees 
  and 
  acres 
  of 
  woodland. 
  Parasites 
  of 
  these 
  insects 
  were 
  more 
  

   abundant 
  than 
  in 
  the 
  preceding 
  year 
  and 
  large 
  numbers, 
  especially 
  

   of 
  the 
  orchard 
  tent- 
  caterpillar, 
  were 
  destroyed 
  in 
  the 
  larval 
  stage 
  by 
  

   a 
  bacterial 
  disease, 
  while 
  of 
  pupae 
  collected 
  at 
  the 
  end 
  of 
  June, 
  about 
  

   45 
  per 
  cent, 
  were 
  parasitised 
  by 
  insect 
  parasites. 
  The 
  maggot 
  of 
  a 
  

   Tachinid 
  fly 
  was 
  the 
  most 
  abundant, 
  but 
  some 
  Ichneumonids 
  were 
  

   also 
  collected. 
  The 
  robber 
  fly, 
  Dasyllis 
  flavicollis, 
  was 
  observed 
  

   prejdng 
  on 
  the 
  adults 
  of 
  M. 
  disstria, 
  but 
  was 
  not 
  sufficiently 
  abundant 
  

   to 
  be 
  of 
  any 
  practical 
  importance. 
  The 
  codhng 
  moth, 
  Cydia 
  pomonella, 
  

   was 
  abundant 
  in 
  many 
  orchards. 
  Considerable 
  injury 
  to 
  apple, 
  

   plum, 
  cherry, 
  and 
  pear 
  was 
  done 
  by 
  the 
  bud 
  moth, 
  Eucosma 
  (Tmetocera) 
  

   ocellana. 
  The 
  second 
  brood 
  of 
  the 
  pear-tree 
  slug, 
  Eriocampoides 
  

   Umacina, 
  did 
  much 
  injury 
  to 
  plum, 
  amelanchier 
  and 
  cherry. 
  The 
  

   apple 
  maggot, 
  Rhagoletis 
  pomonella, 
  continues 
  to 
  be 
  a 
  pest. 
  

  

  Bryce 
  (P. 
  I.). 
  Some 
  Beneficial 
  Hemiptera 
  of 
  Quebec. 
  — 
  6th 
  Ann. 
  Rept. 
  

   Qvbehec. 
  Soc. 
  Prot. 
  Plants 
  from 
  Insects 
  and 
  Fung. 
  Dis., 
  1913-14, 
  

   Quebec, 
  1914, 
  pp. 
  52-53. 
  [Received 
  16th 
  November 
  1914.] 
  

  

  This 
  paper 
  includes 
  popular 
  descriptions 
  of 
  Perilloides 
  (Perillus) 
  

   circumcinctus, 
  P. 
  hioculatus, 
  Podisus 
  serieventris, 
  and 
  Podisus 
  modestus. 
  

   Nymphs 
  and 
  adults 
  of 
  both 
  species 
  of 
  Perilloides 
  feed 
  on 
  the 
  larvae 
  

   and 
  adults 
  of 
  Colorado 
  potato-beetles 
  and 
  other 
  Coleoptera. 
  P. 
  serie- 
  

   ventris 
  in 
  all 
  its 
  stages 
  attacks 
  the 
  larvae 
  of 
  Callosamia 
  promethea, 
  

   the 
  tent-caterpillar 
  {Malacosoma), 
  fall 
  webworm 
  {Hyphantria), 
  the 
  

   gipsy 
  moth 
  {Lymantria 
  dispar), 
  and 
  several 
  Hemiptera 
  ; 
  while 
  

   P. 
  modestus 
  feedJs 
  on 
  the 
  larvae 
  of 
  Hemileuca 
  maia, 
  the 
  Tamarack 
  

   saw-fly, 
  the 
  steel-blue 
  flea-beetle, 
  and 
  also 
  on 
  clematis 
  and 
  golden- 
  

   rod. 
  

  

  