﻿the 
  Staphylinidte 
  of 
  Japan. 
  331 
  

  

  flavis, 
  illis 
  estrorsum 
  fuscescentibus 
  ; 
  fortiter 
  denseque 
  puncta- 
  

   tus 
  ; 
  elytris 
  thorace 
  brevioribus. 
  

   Long. 
  6 
  millira. 
  

  

  Antennas 
  and 
  palpi 
  very 
  long. 
  Head 
  broader 
  than 
  the 
  

   elytra, 
  not 
  concave, 
  vertex 
  broadly 
  but 
  vaguely 
  grooved 
  on 
  

   each 
  side. 
  Thorax 
  a 
  little 
  longer 
  than 
  broad, 
  much 
  rounded 
  

   at 
  the 
  sides, 
  densely 
  and 
  coarsely 
  rugose-punctate. 
  Elytra 
  

   small, 
  narrow 
  at 
  the 
  shoulders, 
  shorter 
  than 
  the 
  thorax, 
  

   coarsely 
  and 
  densely 
  punctate. 
  Hind 
  body 
  elongate, 
  finely 
  

   and 
  sparingly, 
  but 
  quite 
  distinctly 
  pubescent, 
  the 
  basal 
  seg- 
  

   ment 
  coarsely, 
  the 
  apical 
  quite 
  obsoletely 
  punctate. 
  Tarsal 
  

   lobes 
  rather 
  large. 
  The 
  male 
  is 
  distinguished 
  by 
  a 
  very 
  

   slight 
  emargination 
  on 
  the 
  hind 
  margin 
  of 
  the 
  last 
  ventral 
  

   plate. 
  

  

  Miyanoshita 
  and 
  Kiga; 
  five 
  examples. 
  

  

  This 
  somewhat 
  resembles 
  S. 
  palpalis, 
  but 
  is 
  readily 
  dis- 
  

   tinguished 
  by 
  the 
  less 
  coarse 
  punctuation 
  and 
  by 
  the 
  absence 
  

   of 
  lateral 
  margins 
  on 
  the 
  hind 
  body. 
  

  

  Stenus 
  cephalotes, 
  n. 
  sp. 
  (Sect. 
  II. 
  B, 
  Erichson.) 
  

  

  Sat 
  elongatus, 
  niger, 
  haud 
  nitidus 
  ; 
  antennarum 
  basi, 
  palpis 
  pedi- 
  

   busque 
  testaceis 
  ; 
  elytris 
  brevibus, 
  thorace 
  subgloboso 
  brevioribus. 
  

   Long. 
  3-3J, 
  millim. 
  

  

  Antennas 
  and 
  palpi 
  only 
  moderately 
  long. 
  Head 
  very 
  

   broad, 
  with 
  very 
  large 
  eyes, 
  deeply 
  depressed 
  on 
  each 
  side, 
  

   the 
  interstice 
  broad. 
  Thorax 
  about 
  as 
  long 
  as 
  broad, 
  greatly 
  

   rounded 
  at 
  the 
  sides, 
  very 
  densely, 
  rather 
  coarsely 
  punctured, 
  

   rugose. 
  Elytra 
  very 
  short, 
  narrow 
  at 
  the 
  shoulders, 
  densely 
  

   and 
  coarsely 
  punctured. 
  Hind 
  body 
  almost 
  without 
  pubes- 
  

   cence, 
  the 
  basal 
  segments 
  coarsely 
  punctured, 
  the 
  apical 
  

   almost 
  impunctate. 
  Tarsal 
  lobes 
  slender. 
  The 
  male 
  is 
  

   distinguished 
  from 
  the 
  female 
  by 
  the 
  terminal 
  ventral 
  plate 
  

   being 
  truncate 
  instead 
  of 
  acuminate. 
  

  

  Nagasaki 
  in 
  March 
  and 
  April. 
  

  

  Though 
  very 
  different 
  from 
  S. 
  rufescens 
  in 
  colour 
  this 
  is 
  

   similar 
  thereto 
  in 
  size 
  and 
  form. 
  

  

  Stenus 
  confertus, 
  n. 
  sp. 
  (JSect. 
  II. 
  B, 
  Erichson.) 
  

  

  Niger, 
  opacus, 
  fortiter 
  densissiine 
  punctatus, 
  brevissime 
  albido- 
  

   pubescens 
  ; 
  antennis, 
  palpis 
  pedibusque 
  testaceis, 
  geniculis 
  auten- 
  

   narumque 
  elava 
  f 
  uscis 
  ; 
  elytris 
  thorace 
  longioribus. 
  

  

  Long. 
  3-3^ 
  millim. 
  

  

  Palpi 
  and 
  antennae 
  short. 
  Head 
  broad, 
  not 
  concave, 
  

  

  