﻿491 
  

  

  Cosmophila 
  erosa, 
  Hb., 
  Sylepta 
  derogata, 
  F., 
  and 
  Glyphodes 
  indica, 
  

   Saund. 
  Hevea 
  u 
  attacked 
  by 
  Orgyia 
  postica, 
  Wlk., 
  and 
  Batocera 
  

   rubra, 
  L., 
  the 
  larvae 
  of 
  the 
  latter 
  boring 
  galleries 
  in 
  the 
  branches. 
  

  

  The 
  work 
  closes 
  with 
  a 
  review 
  of 
  certain 
  groups 
  of 
  insects 
  which 
  

   are 
  more 
  or 
  less 
  universal 
  pests, 
  a 
  note 
  on 
  useful 
  insects 
  and 
  a 
  chapter 
  

   on 
  insecticides 
  which 
  the 
  author 
  says 
  has 
  been 
  for 
  the 
  most 
  part 
  

   taken 
  from 
  the 
  work 
  of 
  G. 
  Guenaux, 
  " 
  Entomologie 
  et 
  Parasitologie 
  

   Agricoles." 
  

  

  Reports 
  on 
  Insects 
  of 
  the 
  Year 
  1913 
  in 
  Ontario. 
  — 
  Ann. 
  Rep. 
  Entom, 
  

   Soc. 
  Ontario, 
  1913, 
  Toronto, 
  xhv, 
  1914, 
  pp. 
  15-25, 
  2 
  figs. 
  

  

  The 
  following 
  insects 
  of 
  economic 
  importance 
  were 
  reported 
  from 
  

   various 
  parts 
  of 
  Ontario 
  in 
  1913. 
  Locusts 
  were 
  abundant, 
  particularly 
  

   in 
  sandy 
  districts, 
  and 
  much 
  damage 
  was 
  done 
  by 
  Melanoplus 
  atlantis 
  

   and 
  Camnula 
  pellucida 
  to 
  oats, 
  barley, 
  timothy, 
  corn, 
  potatoes 
  and 
  

   beans 
  at 
  Bowesville, 
  near 
  Ottawa. 
  Several 
  reports 
  were 
  received 
  of 
  

   damage 
  done 
  to 
  tomatoes 
  by 
  the 
  Noctuid, 
  Papaipenia 
  cataphracta, 
  

   which 
  bores 
  into 
  the 
  stems 
  ; 
  cutting 
  off 
  the 
  portion 
  of 
  the 
  plant 
  con- 
  

   taining 
  the 
  caterpillar 
  is 
  the 
  only 
  remedy 
  that 
  can 
  be 
  suggested. 
  Tent 
  

   caterpillars 
  {Malacosoma 
  americana 
  and 
  M. 
  disstria) 
  defoliated 
  apple 
  

   trees, 
  except 
  in 
  a 
  few 
  cases 
  where 
  the 
  trees 
  had 
  been 
  sprayed 
  ; 
  the 
  

   woolly 
  apple 
  aphis 
  (Schizoneura 
  lanigera) 
  was 
  conspicuous 
  in 
  some 
  

   orchards, 
  as 
  was 
  also 
  the 
  codling 
  moth 
  (Cydia 
  pomonella). 
  The 
  

   most 
  destructive 
  insect 
  to 
  forest 
  trees 
  in 
  1913 
  was 
  the 
  forest 
  tent- 
  

   caterpillar, 
  Malacosoma 
  disstria, 
  but 
  the 
  damage 
  was 
  not 
  so 
  serious 
  

   as 
  in 
  1912. 
  Among 
  garden 
  and 
  greenhouse 
  plants, 
  roses 
  were 
  injured 
  

   by 
  the 
  caterpillars 
  of 
  the 
  Noctuid 
  moth, 
  Pyrrhia 
  umbra, 
  eating 
  into 
  

   the 
  buds 
  ; 
  asters 
  were 
  attacked 
  at 
  their 
  roots 
  by 
  aphids, 
  and 
  in 
  green- 
  

   houses 
  the 
  variegated 
  cutworm, 
  Peridroma 
  margaritosa 
  var. 
  saucia, 
  

   attacked 
  carnations. 
  

  

  In 
  the 
  Toronto 
  district, 
  roses 
  were 
  attacked 
  by 
  larvae 
  of 
  Pem- 
  

   phredon 
  (Ceratophorus) 
  tenax, 
  and 
  sawflies 
  (Pontania 
  populi) 
  attacked 
  

   poplars. 
  The 
  season 
  favoured 
  the 
  production 
  of 
  aphids, 
  and 
  the 
  

   American 
  elm 
  was 
  attacked 
  by 
  Schizoneura 
  americana, 
  and 
  S. 
  rileyi 
  

   was 
  abundant 
  in 
  cracks 
  and 
  crevices 
  in 
  the 
  bark 
  of 
  the 
  trees. 
  

  

  In 
  the 
  Niagara 
  district, 
  apple 
  maggots 
  (Rhagoletis 
  pomonella) 
  were 
  

   scarce 
  during 
  the 
  year. 
  Apple 
  aphids, 
  A. 
  pomi, 
  Eydajohis 
  {Siphocoryne) 
  

   avenae, 
  A. 
  sorhi, 
  and 
  Schizoneura 
  lanigera, 
  were 
  common 
  and 
  many 
  

   cases 
  of 
  dwarfed 
  apples 
  were 
  observed. 
  The 
  green 
  peach-aphis 
  

   (Myzus 
  persicae) 
  was 
  abundant, 
  but 
  was 
  kept 
  in 
  control 
  by 
  parasites 
  

   and 
  predaceous 
  insects. 
  Woodlice, 
  commonly 
  known 
  as 
  sowbugs 
  in 
  

   the 
  U.S.A., 
  Armadillidum 
  vulgare, 
  A. 
  quadrifrons, 
  and 
  Oniscus 
  asellus, 
  

   infested 
  greenhouses, 
  and 
  seedUngs 
  of 
  Asparagus 
  plumosus. 
  Primula 
  

   obconica, 
  Petunia, 
  Lobelia, 
  Solanum 
  capsicum, 
  and 
  many 
  other 
  plants 
  

   were 
  badly 
  attacked. 
  Systematic 
  trapping 
  by 
  means 
  of 
  inverted 
  

   flower-pots 
  containing 
  damp 
  hay 
  reduced 
  their 
  numbers, 
  as 
  did 
  also 
  

   poisoned 
  bait, 
  made 
  up 
  of 
  2 
  parts 
  rye 
  flour, 
  2 
  parts 
  sugar 
  and 
  1 
  part 
  

   Paris 
  green. 
  The 
  tarnished 
  plant-bug 
  {Lygus 
  pratensis) 
  damaged 
  

   asters 
  and 
  chrysanthemums, 
  and 
  Easter 
  lilies 
  were 
  attacked 
  by 
  the 
  

   bulb 
  mite, 
  Rhizoglyphus 
  hyacinthi. 
  The 
  corn-root 
  aphis 
  {A. 
  maidi- 
  

   radicis) 
  seriously 
  injured 
  cultivated 
  asters 
  ; 
  beets 
  were 
  badly 
  damaged 
  

   by 
  the 
  maggots 
  of 
  the 
  beet 
  leaf- 
  miner 
  {Pegomyia 
  vicina). 
  Elms 
  were 
  

  

  (C55) 
  2x 
  

  

  