﻿THE 
  INSECTS 
  OE 
  NEW 
  JERSEY; 
  

  

  119 
  

  

  N. 
  rubi 
  Kalt. 
  A 
  blackberry-plant 
  louse 
  which 
  I 
  have 
  seen 
  abundantly 
  at 
  

  

  Hammonton, 
  and 
  occasionally 
  in 
  smaller 
  numbers 
  elsewhere 
  in 
  the 
  

  

  State. 
  

   N. 
  liriodendri 
  Monell. 
  Sometimes 
  common 
  on 
  leaves 
  of 
  tulip 
  trees. 
  In 
  

  

  harmful 
  numbers 
  at 
  Vineland 
  in 
  1899. 
  

   N. 
  rudbeckiae 
  Fitch. 
  Occurs 
  commonly 
  on 
  ragweed, 
  golden-rod 
  and 
  other 
  

  

  plants. 
  

   N. 
  viticola 
  Thos. 
  Montclair, 
  Perth 
  Amboy 
  (U 
  S 
  Ag), 
  and 
  generally 
  

  

  throughout 
  the 
  State 
  on 
  grape. 
  

  

  Family 
  ALEYRODID^. 
  

  

  This 
  little 
  family, 
  popularly 
  known 
  as 
  "white 
  flies," 
  contains 
  only 
  a 
  few 
  

   small 
  species 
  in 
  New 
  Jersey, 
  and 
  most 
  of 
  these 
  are 
  of 
  practically 
  no 
  im- 
  

   portance 
  except 
  on 
  plants 
  under 
  glass. 
  "White 
  flies" 
  are 
  dangerous 
  pests 
  

   in 
  Florida 
  and 
  California 
  on 
  citrus 
  plants, 
  and 
  occur 
  in 
  numbers 
  in 
  warmer 
  

   countries 
  generally. 
  They 
  somewhat 
  resemble 
  plant 
  lice 
  in 
  appearance, 
  

   but 
  are 
  covered 
  with 
  a 
  fine 
  whitish 
  powder 
  or 
  flour. 
  In 
  the 
  larval 
  stage 
  

   they 
  somewhat 
  resemble 
  scales, 
  but 
  as 
  adults 
  both 
  sexes 
  have 
  four 
  well- 
  

   developed 
  wings. 
  

  

  In 
  the 
  last 
  edition 
  only 
  three 
  species 
  were 
  listed, 
  and 
  very 
  little 
  collect- 
  

   ing 
  has 
  been 
  done 
  to 
  increase 
  this 
  number 
  in 
  New 
  Jersey; 
  but 
  Dr. 
  W. 
  E. 
  

   Britton, 
  of 
  Connecticut, 
  has 
  recently 
  devoted 
  considerable 
  time 
  to 
  the 
  

   study 
  of 
  these 
  little 
  creatures, 
  and 
  he 
  has 
  been 
  good 
  enough 
  to 
  prepare 
  

   the 
  following 
  list 
  of 
  species, 
  which 
  he 
  thinks 
  will 
  certainly 
  be 
  found 
  in 
  

   our 
  territory 
  when 
  properly 
  sought 
  for. 
  

  

  ALEYRODES 
  Latr. 
  

  

  abutilonea 
  Hald. 
  Infests 
  

   "Abutilon 
  avicennae" 
  in 
  

   Pennsylvania 
  and 
  should 
  

   be 
  found 
  in 
  New 
  Jersey. 
  

  

  acteae 
  Britton. 
  Described 
  

   from 
  Connecticut 
  on 
  

   baneberry, 
  "Actea 
  alba" 
  

   (W. 
  E. 
  B.), 
  and 
  will 
  prob- 
  

   ably 
  occur 
  in 
  New 
  Jer- 
  

   sey. 
  

  

  coryli 
  Britton. 
  Described 
  from 
  Connecticut, 
  where 
  it 
  occurs 
  through- 
  

   out 
  the 
  State; 
  locally 
  common 
  on 
  hazel 
  nut 
  and 
  occasional 
  on 
  black- 
  

   berry 
  (W. 
  E. 
  B.). 
  Should 
  occur 
  in 
  New 
  Jersey. 
  

  

  corni 
  Hald. 
  On 
  "Cornus 
  sericea" 
  in 
  Pennsylvania, 
  and 
  should 
  be 
  

   found 
  in 
  New 
  Jersey. 
  

  

  fernaldi 
  Morrill. 
  Massachusetts 
  and 
  Connecticut 
  on 
  Spiraea. 
  

  

  forbesi 
  Ashm. 
  (aceris 
  Forbes.) 
  Massachusetts 
  to 
  Illinois, 
  on 
  silver 
  

   maple 
  (W. 
  E. 
  B.), 
  and 
  should 
  occur 
  in 
  New 
  Jersey. 
  

  

  Fig. 
  47. 
  — 
  Aleyrodcs 
  citri 
  wtth 
  wings 
  spread 
  at 
  a, 
  

   and 
  in 
  natural 
  position 
  at 
  b; 
  much 
  enlarged. 
  

  

  