﻿ART. 
  20 
  

  

  THE 
  APHID 
  GENUS 
  AMPHOROPHORA 
  MASON 
  

  

  41 
  

  

  to 
  medius 
  than 
  is 
  usual 
  for 
  the 
  genus. 
  Cornicles 
  medium 
  in 
  length, 
  

   considerably 
  swollen, 
  imbricated, 
  very 
  indistinctly 
  reticulated, 
  if 
  at 
  

   all. 
  Cauda 
  long, 
  slender, 
  conspicuously 
  constricted, 
  with 
  4 
  sets 
  of 
  

   lateral 
  hairs. 
  Most 
  of 
  the 
  hairs 
  of 
  the 
  body 
  more 
  or 
  less 
  capitate. 
  

  

  Antennal 
  measurements 
  

  

  Pergande 
  left, 
  in 
  his 
  notes, 
  the 
  following 
  color 
  description, 
  made 
  

   from 
  the 
  metatype 
  specimens 
  : 
  

  

  ''Head 
  yellowish, 
  eyes 
  brown, 
  ocelli 
  clear, 
  bordered 
  at 
  inner 
  side 
  

   with 
  purplish 
  brown. 
  Antennae 
  black. 
  Prothorax 
  greenish, 
  thoracic 
  

   lobes 
  brownish 
  yellow. 
  Abdomen 
  green, 
  variegated 
  with 
  yellowish 
  

   green. 
  Nectaries 
  dusky, 
  greenish 
  toward 
  base. 
  Legs 
  black, 
  the 
  

   femora 
  yellowish 
  green 
  at 
  base, 
  growing 
  darker 
  toward 
  or 
  beyond 
  

   the 
  middle. 
  Stigma 
  dusky, 
  blackish 
  along 
  inner 
  edge. 
  Subcosta 
  

   yellowish." 
  

  

  Last 
  instar 
  alate 
  nymph 
  

  

  Third 
  instar 
  alate 
  nymph 
  

  

  