﻿ART. 
  20 
  

  

  THE 
  APHID 
  GENUS 
  AMPHOROPHORA 
  MASON 
  

  

  65 
  

  

  AMPHOROPHORA 
  SPIRAECOLA 
  (Patch) 
  

  

  Figs. 
  164-168 
  

  

  Macrosiphum 
  spiraecola 
  Patch, 
  Maine 
  Agr. 
  Exp. 
  Sta. 
  Bull. 
  233, 
  1914, 
  p. 
  

  

  271. 
  — 
  Wilson 
  and 
  Vickery, 
  Trans. 
  Wis. 
  Acad. 
  Sci. 
  Arts 
  and 
  Letters, 
  

  

  vol. 
  19, 
  pt. 
  1, 
  1918, 
  p. 
  161. 
  

   Nectarosiphon 
  spiraecola 
  Patch, 
  Conn. 
  Geol. 
  and 
  Nat. 
  Hist. 
  Surv. 
  Bull. 
  

  

  34, 
  1923, 
  p. 
  310. 
  

  

  The 
  writer 
  has 
  had 
  the 
  privilege 
  of 
  examining 
  the 
  cotype 
  specimens 
  

   which 
  were 
  kindly 
  lent 
  by 
  Dr. 
  Edith 
  M. 
  Patch. 
  In 
  the 
  original 
  

   account 
  only 
  the 
  apterous 
  form 
  was 
  discussed. 
  Doctor 
  Patch 
  

   later 
  took 
  a 
  single 
  alate 
  viviparous 
  female 
  in 
  company 
  with 
  apterous 
  

   forms. 
  The 
  drawings 
  and 
  the 
  following 
  description 
  are 
  from 
  this 
  

   specimen. 
  

  

  Alate 
  viviparous 
  female. 
  — 
  Antennae 
  nearly 
  twice 
  as 
  long 
  as 
  body, 
  

   rather 
  slender, 
  dark 
  colored, 
  length 
  of 
  hairs 
  less 
  than 
  half 
  of 
  diameter 
  

   of 
  the 
  segment, 
  III 
  with 
  15-17 
  circular 
  sensoria 
  of 
  varying 
  sizes 
  and 
  

   not 
  in 
  an 
  even 
  row, 
  IV, 
  V, 
  and 
  VI 
  distinctly 
  inbricated 
  and 
  with 
  no 
  

   secondary 
  sensoria 
  ; 
  length 
  of 
  segments 
  as 
  follows 
  : 
  

  

  The 
  specimen 
  which 
  lays 
  on 
  its 
  side 
  shows 
  a 
  tubercle 
  slightly 
  

   back 
  of 
  the 
  center 
  of 
  the 
  head, 
  with 
  a 
  knobbed 
  hair 
  directly 
  in 
  front 
  

   of 
  it. 
  The 
  antennal 
  tubercles 
  appear 
  rather 
  small 
  from 
  the 
  lateral 
  

   view. 
  The 
  beak 
  is 
  short, 
  not 
  reaching 
  beyond 
  the 
  second 
  coxae. 
  

   The 
  cornicles 
  are 
  moderately 
  swollen, 
  0.784 
  mm. 
  long, 
  reticulated 
  for 
  

   0.08 
  mm., 
  imbricated 
  over 
  nearly 
  the 
  entire 
  length, 
  widest 
  diameter 
  

   0.12 
  mm., 
  smallest 
  diameter 
  0.048 
  mm., 
  flange 
  0.064 
  mm. 
  wide. 
  The 
  

   cauda 
  is 
  twisted, 
  but 
  appears 
  to 
  be 
  very 
  long 
  and 
  moderately 
  wide. 
  

  

  Doctor 
  Patch, 
  in 
  a 
  letter 
  furnishes 
  the 
  following 
  color 
  notes: 
  

   "Thorax 
  pale 
  brown; 
  body 
  pale 
  brown; 
  cornicle 
  pale, 
  tip 
  dark." 
  

  

  Apterous 
  viviparous 
  female. 
  — 
  Antennae 
  about 
  twice 
  as 
  long 
  as 
  

   body, 
  lighter 
  colored 
  than 
  in 
  the 
  alate, 
  hairs 
  inconspicuous, 
  shorter 
  

   than 
  width 
  of 
  segment, 
  III 
  with 
  3-7 
  sensoria 
  near 
  base, 
  distal 
  seg- 
  

   ments 
  faintly 
  imbricated. 
  Antennal 
  tubercles 
  large 
  and 
  conspicuous. 
  

  

  Beak 
  reaching 
  second 
  coxae. 
  Cornicles 
  long, 
  moderately 
  swollen, 
  

   distinctly 
  reticulate 
  at 
  tip. 
  Cauda 
  long, 
  conical, 
  slight 
  indication 
  of 
  

   constriction, 
  three 
  sets 
  of 
  hairs. 
  

   43328— 
  25t 
  5 
  

  

  