﻿A. 
  REVISION 
  OF 
  THE 
  INSECTS 
  OF 
  THE 
  APHID 
  GENUS 
  

  

  AMPHOROPHORA 
  

  

  By 
  Preston 
  W. 
  Mason 
  

  

  Of 
  the 
  Bureau 
  of 
  Entomology, 
  United 
  Stales 
  Department 
  of 
  Agriculture 
  

  

  This 
  paper 
  represents 
  principally 
  a 
  systematic 
  study 
  of 
  the 
  aphid 
  

   genus 
  Amphorophora 
  Buckton. 
  There 
  has 
  also 
  been 
  included 
  what 
  

   is 
  known 
  of 
  the 
  biology 
  of 
  each 
  species. 
  The 
  meager 
  facts 
  that 
  are 
  

   available 
  indicate 
  very 
  forceably 
  the 
  need 
  of 
  rearing 
  work 
  in 
  connec- 
  

   tion 
  with 
  any 
  systematic 
  study 
  in 
  this 
  family 
  of 
  insects. 
  

  

  The 
  genus 
  was 
  erected 
  by 
  Buckton 
  in 
  British 
  Aphides 
  1 
  for 
  a 
  new 
  

   species 
  which 
  he 
  described 
  on 
  the 
  same 
  page. 
  Since 
  that 
  time 
  various 
  

   other 
  species 
  have 
  been 
  added 
  by 
  other 
  writers. 
  Several 
  authors 
  

   have 
  discussed 
  the 
  species 
  common 
  to 
  their 
  own 
  State 
  or 
  country, 
  

   but 
  the 
  species 
  of 
  this 
  genus 
  of 
  the 
  entire 
  world 
  have 
  never 
  been 
  

   brought 
  together 
  in 
  one 
  paper. 
  The 
  present 
  writer 
  has 
  attempted 
  

   to 
  do 
  this 
  here. 
  

  

  In 
  this 
  work 
  I 
  have 
  had 
  the 
  use 
  of 
  all 
  specimens 
  in 
  the 
  United 
  

   States 
  National 
  Museum 
  and 
  the 
  Bureau 
  of 
  Entomology; 
  the 
  collec- 
  

   tion 
  of 
  the 
  Maine 
  Agricultural 
  Experiment 
  Station, 
  loaned 
  by 
  Dr. 
  

   Edith 
  M. 
  Patch; 
  the 
  Swain 
  collection 
  of 
  Leland 
  Stanford 
  University, 
  

   loaned 
  by 
  Prof. 
  G. 
  F. 
  Ferris 
  ; 
  a 
  part 
  of 
  the 
  Canadian 
  collection 
  loaned 
  

   by 
  William 
  Ross; 
  and 
  the 
  private 
  collections 
  of 
  W. 
  M. 
  Davidson, 
  

   Dr. 
  Thomas 
  Guyton, 
  and 
  Harold 
  Morrison. 
  Prof. 
  J. 
  J. 
  Davis 
  has 
  

   kindly 
  loaned 
  certain 
  slides 
  from 
  his 
  collection 
  and 
  from 
  the 
  Monell 
  

   collection. 
  Prof. 
  E. 
  O. 
  Essig 
  has 
  loaned 
  specimens 
  from 
  the 
  Uni- 
  

   versity 
  of 
  California. 
  Prof. 
  R. 
  Takahashi 
  sent 
  Japanese 
  material. 
  

   The 
  National 
  collection 
  contains 
  metatype 
  slides 
  of 
  certain 
  of 
  Van 
  der 
  

   Goot's 
  species. 
  Frederick 
  Laing 
  and 
  Prof. 
  F. 
  V. 
  Theobald 
  have 
  dis- 
  

   cussed 
  through 
  correspondence 
  the 
  European 
  species 
  and 
  Professor 
  

   Takahashi 
  the 
  Japanese 
  and 
  Formosan 
  species. 
  Prof. 
  O. 
  W. 
  Oest- 
  

   lund 
  has 
  compared 
  drawings 
  sent 
  to 
  him 
  with 
  species 
  discussed 
  by 
  

   him 
  in 
  his 
  report 
  of 
  1887. 
  

  

  Certain 
  aphid 
  workers 
  who 
  have 
  visited 
  Washington 
  recently 
  have 
  

   examined 
  some 
  of 
  the 
  slides 
  with 
  the 
  writer 
  and 
  expressed 
  their 
  

   opinions 
  as 
  to 
  the 
  identity 
  of 
  the 
  species. 
  These 
  include 
  Miss 
  Patch 
  

   and 
  Messrs. 
  Ross, 
  Guyton, 
  Davidson, 
  and 
  Potgieter. 
  

  

  i 
  Vol. 
  1, 
  1876, 
  p. 
  187. 
  

  

  No. 
  2592.— 
  Proceedings 
  U. 
  S. 
  National 
  Museum, 
  Vol. 
  67, 
  Art. 
  20- 
  

  

  43328—25 
  1 
  1 
  

  

  