﻿328 
  Dr. 
  D. 
  Sharp 
  on 
  

  

  tibise 
  a 
  little 
  distance 
  above 
  the 
  apex 
  ; 
  the 
  femora 
  are 
  a 
  little 
  

   inflated 
  and 
  the 
  apices 
  of 
  the 
  hinder 
  trochanters 
  spinose 
  ; 
  

   the 
  breast 
  is 
  finely 
  pubescent 
  ; 
  the 
  terminal 
  ventral 
  ring 
  bears 
  

   a 
  deep 
  narrow 
  notch 
  behind 
  and 
  in 
  front 
  is 
  bicarinate, 
  the 
  

   preceding 
  segment 
  is 
  depressed 
  in 
  the 
  middle 
  and 
  acutely 
  

   carinate 
  on 
  each 
  side 
  of 
  the 
  depression, 
  and 
  the 
  antepenulti- 
  

   mate 
  is 
  broadly 
  but 
  slightly 
  depressed. 
  

  

  Yokohama, 
  Osaka. 
  

  

  This 
  species 
  resembles 
  those 
  of 
  the 
  8. 
  speculator 
  group 
  

   rather 
  than 
  the 
  species 
  amongst 
  which 
  it 
  is 
  placed 
  on 
  account 
  

   of 
  its 
  immarginate 
  hind 
  body. 
  It 
  has 
  no 
  European 
  ally. 
  

  

  Stenus 
  MrtiventriSf 
  n. 
  sp. 
  (Sect. 
  I. 
  B, 
  Erichson.) 
  

  

  Niger, 
  sat 
  nitidus, 
  pube 
  albida 
  suberecta 
  parce 
  vestitus, 
  fortiter 
  

  

  punctatus, 
  pedibus 
  piceis 
  ; 
  elytris 
  thoracis 
  lonjiitudine. 
  

   Long. 
  3 
  millim. 
  

  

  Antenna? 
  short 
  and 
  stout. 
  Head 
  not 
  at 
  all 
  concave, 
  the 
  

   vertex 
  elevated 
  in 
  the 
  middle, 
  very 
  feebly 
  depressed 
  on 
  each 
  

   side. 
  Thorax 
  subglobose, 
  very 
  coarsely 
  punctured. 
  Elytra 
  

   also 
  coarsely 
  punctured. 
  Hind 
  body 
  convex, 
  the 
  basal 
  seg- 
  

   ments 
  distinctly, 
  the 
  apical 
  sparingly 
  and 
  obsoletely 
  punc- 
  

   tured, 
  the 
  segments 
  at 
  the 
  base 
  tricuspidate. 
  Legs 
  rather 
  

   short, 
  basal 
  joint 
  of 
  the 
  palpi 
  pale. 
  

  

  Niigata, 
  9th 
  September, 
  1881 
  ; 
  a 
  single 
  female. 
  

  

  This 
  little 
  insect 
  has 
  no 
  close 
  ally, 
  but 
  somewhat 
  resembles 
  

   the 
  European 
  8. 
  fuscipes 
  belonging 
  to 
  another 
  section 
  of 
  the 
  

   genus. 
  

  

  Stenus 
  bicolon, 
  n. 
  sp. 
  (Sect. 
  II. 
  A, 
  Erichson.) 
  

  

  Elongatus, 
  niger, 
  sat 
  nitidus 
  ; 
  palpis, 
  antennis 
  pedibusque 
  flavis 
  ; 
  

  

  elytris 
  singulo 
  apicem 
  versus 
  macula 
  parva 
  aurantiaca. 
  

   Long. 
  5i-6 
  millim. 
  

  

  Antenna? 
  very 
  long 
  and 
  slender, 
  the 
  elongate 
  club 
  slightly 
  

   infuscate 
  ; 
  palpi 
  very 
  long. 
  Head 
  broad, 
  eyes 
  widely 
  sepa- 
  

   rated, 
  a 
  slight 
  broad 
  depression 
  on 
  each 
  side. 
  Thorax 
  

   longer 
  than 
  broad, 
  a 
  good 
  deal 
  rounded 
  at 
  the 
  sides, 
  very 
  

   densely 
  and 
  deeply 
  punctate. 
  Elytra 
  scarcely 
  longer 
  than 
  

   the 
  thorax, 
  densely, 
  deeply 
  and 
  rather 
  coarsely 
  punctured, 
  

   each 
  with 
  an 
  elongate, 
  rather 
  small, 
  reddish 
  spot, 
  placed 
  

   much 
  nearer 
  to 
  the 
  hind 
  margin 
  than 
  to 
  the 
  base. 
  Hind 
  

   body 
  closely 
  punctate, 
  the 
  punctuation 
  rather 
  coarse 
  at 
  the 
  

   base, 
  much 
  more 
  obsolete 
  at 
  the 
  apex, 
  the 
  segments 
  entirely 
  

   without 
  cusps. 
  Legs 
  long, 
  tarsal 
  lobes 
  rather 
  long. 
  The 
  

  

  