﻿AltT. 
  20 
  

  

  THE 
  APHID 
  GENUS 
  AMPHOROPHOBA 
  MASON 
  

  

  49 
  

  

  sensoria 
  near 
  base. 
  Antennal 
  tubercles 
  very 
  large 
  and 
  long. 
  Beak 
  

   reaching 
  beyond 
  second 
  coxae, 
  nearly 
  to 
  third. 
  No 
  prothoracic 
  or 
  

   abdominal 
  tubercles. 
  Cornicles 
  very 
  light 
  colored, 
  long, 
  strongly 
  

   dilated 
  on 
  distal 
  half, 
  but 
  not 
  much 
  reduced 
  at 
  flange, 
  reticulated 
  

   for 
  a 
  short 
  distance, 
  not 
  imbricated. 
  Cauda 
  concolorous 
  with 
  

   body, 
  long, 
  broad, 
  strongly 
  constricted 
  at 
  base; 
  two 
  sets 
  of 
  lateral 
  

   hairs. 
  Measurements 
  as 
  follows: 
  

  

  No. 
  

  

  1 
  

   2 
  

   3 
  

  

  in 
  

  

  0.656 
  

   0.656 
  

   0. 
  568 
  

   0. 
  592 
  

   0. 
  688 
  

   0. 
  672 
  

  

  Sensoria 
  

   on 
  III 
  

  

  IV 
  

  

  0. 
  560 
  

  

  0. 
  560 
  

   0. 
  512 
  

   0.488 
  

   0. 
  560 
  

   0. 
  560 
  

  

  0. 
  528 
  

   0. 
  536 
  

   0. 
  544 
  

   0. 
  544 
  

   0. 
  536 
  

   0. 
  544 
  

  

  VI 
  

  

  0. 
  144 
  + 
  0. 
  960 
  

   0. 
  160 
  + 
  0. 
  992 
  

   0. 
  152+1. 
  024 
  

   0. 
  144+1.040 
  

   0. 
  168+ 
  ? 
  

   ? 
  

  

  No. 
  

  

  Head 
  

  

  Cornicle 
  

  

  Cauda 
  

  

  Length 
  Reticulated 
  Wide 
  X 
  Small 
  X 
  Flange 
  

  

  1 
  

  

  2 
  

   3 
  

  

  0.432 
  

  

  0.384 
  

   0. 
  368 
  

  

  0. 
  320 
  

  

  0. 
  224 
  

   0.320 
  

  

  0. 
  560 
  

   0. 
  560 
  

   0. 
  496 
  

   0. 
  560 
  

   0. 
  584 
  

  

  0.040 
  

   0.040 
  

   0. 
  040 
  

   0.040 
  

   0. 
  040 
  

  

  ? 
  

  

  ? 
  

   0. 
  080 
  

   0.096 
  

   0.096 
  

  

  ? 
  

  

  ? 
  

  

  ? 
  

   0.048 
  

   0. 
  056 
  

  

  0.056 
  

   0.056 
  

   0. 
  048 
  

   0. 
  056 
  

   0.048 
  

  

  Host. 
  — 
  Clintonia 
  . 
  

  

  Distribution. 
  — 
  Orono, 
  Maine. 
  

  

  Cotypes. 
  — 
  Returned 
  to 
  Maine 
  Agricultural 
  Experiment 
  Station. 
  

  

  AMPHOROPHORA 
  PERGANDEI, 
  new 
  species 
  

  

  Figs. 
  72-77 
  

  

  Pergande 
  took 
  the 
  apterous 
  forms 
  of 
  this 
  species 
  on 
  the 
  under 
  side 
  

   of 
  currant 
  leaves 
  at 
  Washington, 
  D. 
  C, 
  on 
  May 
  6, 
  1897. 
  On 
  May 
  

   12 
  he 
  reared 
  from 
  them 
  a 
  single 
  alate 
  specimen. 
  These 
  cotype 
  

   specimens 
  furnish 
  the 
  only 
  records 
  we 
  have 
  of 
  the 
  species. 
  

  

  This 
  species 
  can 
  be 
  distinguished 
  from 
  cosmopolitana 
  on 
  the 
  same 
  

   host 
  by 
  the 
  larger 
  number 
  of 
  sensoria 
  and 
  by 
  the 
  very 
  long, 
  capitate 
  

   hairs 
  of 
  the 
  antennae. 
  

  

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

   dark 
  colored, 
  very 
  tuberculate, 
  III 
  with 
  125-130 
  sensoria, 
  IV 
  with 
  

   40-45 
  sensoria, 
  V 
  with 
  5-8 
  sensoria, 
  hairs 
  capitate 
  and 
  as 
  long 
  as 
  or 
  

   longer 
  than 
  width 
  of 
  segment. 
  Antennal 
  tubercles 
  of 
  moderate 
  size. 
  

   Beak 
  reaching 
  about 
  to 
  second 
  coxae. 
  Prothoracic 
  tubercles 
  not 
  

   showing. 
  Abdomen 
  without 
  the 
  lateral 
  dark 
  patches 
  as 
  in 
  cos- 
  

   mopolitana. 
  Cornicles 
  of 
  moderate 
  length, 
  strongly 
  swollen, 
  dark 
  

   colored, 
  lighter 
  at 
  base, 
  tips 
  very 
  faintly 
  imbricated. 
  Cauda 
  very 
  

   long, 
  narrow, 
  constricted, 
  four 
  sets 
  of 
  large 
  lateral 
  hairs. 
  

   43328— 
  25t 
  4 
  

  

  