﻿no 
  REPORT 
  OF 
  NEW 
  JERSEY 
  STATE 
  MUSEUM. 
  

   Sub-family 
  Triozin^. 
  

  

  TRIOZA 
  Forst. 
  

  

  T. 
  diospyri 
  Ashm. 
  Anglesea 
  V, 
  28 
  (Sm); 
  common 
  on 
  persimmon 
  every- 
  

   where 
  (Sz). 
  

  

  T. 
  tripunctata 
  Fitch. 
  Staten 
  Island 
  X, 
  31 
  (Ds) 
  ; 
  Anglesea 
  V, 
  28 
  (Sm) 
  ; 
  

   common, 
  the 
  imago 
  frequently 
  met 
  with 
  in 
  winter 
  on' 
  pine 
  trees 
  (Sz). 
  

  

  Family 
  APHIDID^. 
  

  

  The 
  "plant-lice," 
  "green-flies" 
  or 
  "aphids" 
  are 
  among 
  the 
  commonest 
  

   and 
  most 
  abundant 
  of 
  all 
  our 
  insects, 
  and 
  also 
  among 
  the 
  most 
  destructive. 
  

   They 
  have, 
  when 
  winged, 
  two 
  pairs 
  of 
  transparent 
  wings, 
  the 
  anterior 
  

   much 
  the 
  larger; 
  but 
  some 
  species 
  and 
  some 
  forms 
  of 
  nearly 
  all 
  species 
  

   never 
  develop 
  wings 
  at 
  all. 
  The 
  bodies 
  are 
  plump, 
  oval, 
  with 
  usually 
  a 
  

   pair 
  of 
  "honey 
  tubes" 
  or 
  "cornicles" 
  near 
  the 
  anal 
  end, 
  a 
  pair 
  of 
  long 
  

   antennae 
  and 
  rathei- 
  long 
  sprawly 
  legs. 
  They 
  frequently 
  cluster 
  in 
  great 
  

   numbers 
  about 
  twigs 
  or 
  shoots 
  of 
  plants 
  or 
  on 
  the 
  under 
  surface 
  of 
  leaves, 
  

   sucking 
  the 
  juices 
  and 
  excreting 
  from 
  the 
  anal 
  end 
  a 
  thin 
  sugary 
  liquid, 
  

   the 
  honey 
  dew. 
  This 
  honey 
  dew 
  when 
  present 
  in 
  quantity 
  tends 
  to 
  choke 
  

   the 
  leaves 
  upon 
  which 
  it 
  falls, 
  and 
  that 
  tendency 
  is 
  furthered 
  by 
  a 
  black 
  

   soot 
  fungus 
  which 
  develops 
  on 
  the 
  honey 
  dew 
  and 
  disfigures 
  and 
  some- 
  

   times 
  checks 
  the 
  growth 
  of 
  fruits 
  as 
  well 
  as 
  leaves. 
  

  

  Fig. 
  43- 
  — 
  Wheat 
  plant 
  louse; 
  much 
  enlarged. 
  

  

  The 
  life 
  history 
  of 
  the 
  species 
  is 
  interesting 
  and 
  sometimes 
  compli- 
  

   cated; 
  but 
  briefly 
  stated 
  is 
  generally 
  about 
  as 
  follows: 
  They 
  winter 
  as 
  

  

  