﻿72 
  

  

  PROCEEDINGS 
  OP 
  THE 
  NATIONAL 
  MUSEUM 
  

  

  vol. 
  67 
  

  

  of 
  the 
  sixth 
  segment 
  is 
  one-sixth 
  the 
  length 
  of 
  the 
  third. 
  The 
  hairs 
  on 
  the 
  

   third 
  segment 
  reach 
  almost 
  two-thirds 
  the 
  diameter 
  of 
  the 
  proximal 
  part 
  of 
  

   the 
  segment. 
  Secondary 
  sensoria 
  are 
  found 
  not 
  only 
  on 
  the 
  third 
  and 
  fifth 
  

   segments, 
  but 
  also 
  on 
  the 
  fourth. 
  The 
  cornicles 
  reach 
  one-fourth 
  the 
  length 
  of 
  

   the 
  body, 
  they 
  widen 
  toward 
  the 
  base; 
  from 
  this 
  point 
  to 
  one-fourth 
  from 
  the 
  

   base 
  they 
  become 
  narrow, 
  then 
  to 
  one-third 
  from 
  the 
  end 
  they 
  widen; 
  from 
  this 
  

   point 
  to 
  the 
  flange 
  they 
  become 
  narrow 
  again. 
  The 
  head, 
  prothorax, 
  and 
  

   tubercles 
  of 
  thorax 
  are 
  dark 
  or 
  tawny; 
  the 
  antennae, 
  with 
  the 
  exception 
  of 
  the 
  base 
  

   of 
  the 
  third 
  segment, 
  and 
  the 
  cornicles 
  are 
  tawny. 
  On 
  the 
  upper 
  part 
  of 
  the 
  

   abdomen 
  there 
  is 
  on 
  some 
  specimens 
  a 
  median 
  dark 
  stripe 
  (of 
  spots) 
  and 
  on 
  seg- 
  

   ments 
  2-5 
  there 
  are 
  marginal 
  dark 
  disks. 
  

  

  Measurements 
  of 
  one 
  specimen 
  2.12-0.68: 
  Frontal 
  furrow, 
  0.07; 
  between 
  the 
  

   bases 
  of 
  the 
  antennae, 
  0.20; 
  mouth 
  of 
  furrow, 
  0.13; 
  width 
  at 
  the 
  middle 
  of 
  its 
  depth 
  

   0.11; 
  at 
  base 
  0.0S; 
  frontal 
  vertex 
  projection, 
  0.007. 
  Antennae, 
  4.27, 
  with 
  the 
  

   following 
  measurements 
  of 
  individual 
  segments: 
  0.12, 
  0.08, 
  1.14 
  (1.13), 
  0.83 
  

   (0.82), 
  0.69, 
  0.18 
  + 
  1.23. 
  Hairs 
  on 
  the 
  third 
  segment, 
  0.017-0.029; 
  diameter 
  of 
  

   proximal 
  part 
  of 
  segment, 
  0.047. 
  Sensoria 
  on 
  the 
  third 
  segment 
  placed 
  thickly 
  

   over 
  its 
  entire 
  length; 
  on 
  the 
  fourth 
  segment 
  there 
  are 
  3 
  (8) 
  sensoria; 
  on 
  the 
  

   fifth 
  15 
  (14) 
  in 
  addition 
  to 
  the 
  permanent 
  one. 
  The 
  cornicles 
  are 
  0.55; 
  their 
  

   thickness, 
  0.066 
  (base), 
  0.042 
  (0.12 
  from 
  base), 
  0.066 
  (0.17 
  from 
  end), 
  0.042 
  

   (0.013 
  from 
  end), 
  0.040 
  (in 
  front 
  of 
  flange), 
  0.062 
  (flange). 
  Cauda, 
  0.16 
  (length) 
  , 
  

   0.12 
  (base), 
  0.08 
  (0.09 
  from 
  tip); 
  on 
  each 
  side 
  are 
  five 
  hairs. 
  The 
  posterior 
  femur, 
  

   1.14; 
  tibia, 
  2.28; 
  tarsi, 
  0.14 
  (0.04, 
  0.11); 
  claws, 
  0.043. 
  

  

  Distribution. 
  — 
  These 
  aphids 
  are 
  so 
  far 
  known 
  from 
  the 
  environs 
  of 
  the 
  city 
  of 
  

   Uralsk. 
  Apparently 
  it 
  is 
  distributed 
  over 
  Siberia, 
  at 
  least 
  Western 
  Siberia. 
  

   Unfortunately 
  there 
  is 
  no 
  material 
  at 
  present 
  from 
  various 
  parts 
  of 
  Siberia. 
  On 
  

   the 
  lower 
  part 
  of 
  the 
  river 
  Amur 
  occurs 
  Ac. 
  rubi 
  amurense. 
  

  

  Life 
  habits. 
  — 
  During 
  the 
  first 
  part 
  of 
  September 
  in 
  the 
  vicinity 
  of 
  Uralsk 
  there 
  

   were 
  collected 
  wingless 
  females, 
  a 
  young 
  oviparous 
  female 
  (in 
  the 
  fourth 
  stage 
  of 
  

   development), 
  a 
  winged 
  male 
  and 
  a 
  nymph 
  of 
  a 
  male. 
  In 
  general 
  the 
  life 
  history 
  

   must 
  be 
  identical 
  with 
  that 
  of 
  Ac. 
  rubi 
  rubi. 
  

  

  SPECIES 
  NOT 
  PLACED 
  

  

  Following 
  are 
  descriptions 
  of 
  two 
  alate 
  males, 
  which 
  I 
  have 
  not 
  

   placed 
  specifically. 
  

  

  Pergande 
  No. 
  5591 
  

  

  Antennae 
  about 
  twice 
  as 
  long 
  as 
  body, 
  dark 
  colored, 
  very 
  tuber- 
  

   culate; 
  hairs 
  small, 
  much 
  shorter 
  than 
  width 
  of 
  segment. 
  Antenna! 
  

   tubercles 
  very 
  small. 
  Small 
  prothoracic 
  tubercles 
  showing. 
  Abdo- 
  

   men 
  with 
  lateral 
  dark 
  patches. 
  Cornicles 
  of 
  uniform 
  color, 
  long, 
  

   plainly 
  swollen, 
  faintly 
  imbricated 
  at 
  tip. 
  Cauda 
  constricted, 
  one 
  

   dorsal 
  and 
  three 
  lateral 
  hairs 
  present. 
  

  

  