﻿ART. 
  20 
  

  

  THE 
  APHID 
  GENUS 
  AMPHOROPHORA 
  MASON 
  

  

  15 
  

  

  Theobald 
  says 
  in 
  his 
  1915 
  paper 
  that 
  the 
  cotypes 
  are 
  deposited 
  in 
  

   his 
  collection. 
  In 
  his 
  second 
  description 
  of 
  the 
  apterous 
  form 
  (1920) 
  

   he 
  writes 
  that 
  the 
  cotypes 
  are 
  in 
  the 
  British 
  Museum. 
  

  

  AMPHOROPHORA 
  CICUTAE 
  Shinji 
  

  

  Figs. 
  80-84 
  

   Amphorophora 
  cicutae 
  Shinji, 
  Can. 
  Ent., 
  vol. 
  49, 
  1917, 
  p. 
  51. 
  

  

  The 
  type 
  of 
  this 
  species 
  was 
  loaned 
  to 
  Dr. 
  A. 
  C. 
  Baker, 
  of 
  this 
  

   bureau, 
  who 
  made 
  the 
  following 
  manuscript 
  description: 
  

  

  "III, 
  0.8 
  mm.; 
  IV, 
  0.736 
  mm.; 
  V, 
  0.56 
  mm.; 
  VI 
  (0.144 
  mm. 
  + 
  1.04 
  

   mm.). 
  

  

  "The 
  sensoria 
  (15) 
  form 
  an 
  even 
  row 
  along 
  the 
  segment. 
  They 
  

   are 
  moderate 
  in 
  size; 
  cornicles, 
  0.736 
  mm.; 
  flange, 
  0.08 
  mm., 
  nar- 
  

   rowest 
  diameter, 
  0.048 
  mm.; 
  widest, 
  0.096 
  mm.; 
  cauda, 
  0.32 
  mm., 
  

   the 
  extremity 
  extending 
  about 
  to 
  the 
  tip 
  of 
  the 
  cornicles, 
  which 
  have 
  

   no 
  reticulations 
  at 
  tip 
  but 
  a 
  few 
  transverse 
  imbrications." 
  

  

  This 
  is 
  somewhat 
  different 
  from 
  Shinji 
  's 
  description. 
  

  

  The 
  present 
  location 
  of 
  the 
  type 
  is 
  not 
  known. 
  Essig 
  says 
  in 
  a 
  

   letter 
  that 
  it 
  must 
  have 
  been 
  taken 
  by 
  Shinji 
  when 
  he 
  left 
  the 
  Uni- 
  

   versity 
  of 
  California. 
  No 
  other 
  records 
  of 
  the 
  species 
  have 
  been 
  

   made. 
  

  

  Host. 
  — 
  Cicuta 
  virosa, 
  var. 
  calif 
  ornica. 
  

  

  Locality. 
  — 
  University 
  of 
  California 
  campus, 
  Berkeley, 
  Calif. 
  

  

  Date 
  of 
  collection. 
  — 
  April 
  20, 
  1915. 
  

  

  AMPHOROPHORA 
  CORYLINA 
  (Davidson) 
  

  

  Figs. 
  98-100 
  

  

  Rhopalosiphum 
  corylinum 
  Davidson, 
  Journ. 
  Econ. 
  Ent., 
  vol. 
  7, 
  1914, 
  p. 
  

   134. 
  — 
  Wilson 
  and 
  Vickery, 
  Trans. 
  Wis. 
  Acad. 
  Sci. 
  Arts 
  and 
  Letters, 
  

   vol. 
  19, 
  pt. 
  1, 
  1918. 
  p. 
  63.— 
  Swain. 
  Univ. 
  Cal. 
  Publ. 
  Tech. 
  Bulls., 
  vol. 
  3, 
  

   No. 
  1, 
  1919. 
  p. 
  81. 
  

  

  The 
  following 
  description 
  is 
  from 
  specimens 
  on 
  the 
  type 
  slide. 
  

  

  Mate 
  viviparous 
  female. 
  — 
  Antennae 
  longer 
  than 
  body, 
  slender, 
  

   faintly 
  imbricated, 
  hairs 
  shorter 
  than 
  width 
  of 
  segments. 
  Antennal 
  

   measurements 
  as 
  follows: 
  

  

  