﻿330 
  Dr. 
  D. 
  Sharp 
  on 
  

  

  moderately 
  coarsely 
  and 
  closely 
  punctured. 
  Hind 
  body 
  stout 
  

   at 
  the 
  base, 
  much 
  narrowed 
  to 
  the 
  extremity, 
  punctuation 
  

   rather 
  distant 
  and 
  not 
  coarse, 
  the 
  segments 
  unicuspidate 
  at 
  

   the 
  base 
  in 
  the 
  middle, 
  and 
  the 
  basal 
  segment 
  with 
  a 
  feeble 
  

   lateral 
  cusp. 
  Legs 
  rather 
  short. 
  The 
  male 
  characters 
  are 
  

   slight 
  and 
  consist 
  of 
  a 
  feeble 
  broad 
  emargination 
  of 
  the 
  last 
  

   ventral 
  plate 
  and 
  a 
  slight 
  deplanation 
  of 
  the 
  preceding 
  seg- 
  

   ment 
  along 
  its 
  middle. 
  

  

  Miyanoshita 
  ; 
  two 
  examples. 
  

  

  Not 
  very 
  near 
  any 
  other 
  species, 
  but 
  comes 
  in 
  the 
  neigh- 
  

   bourhood 
  of 
  8. 
  bifbveolatus, 
  Gyll. 
  

  

  Stenus 
  insularis. 
  (Sect. 
  II. 
  A, 
  Erichson.) 
  

   Stenus 
  insttlaris, 
  Sahib. 
  Veg. 
  exp. 
  Vet. 
  iv. 
  p. 
  53. 
  

  

  " 
  Hiro 
  Sami." 
  

  

  This 
  apparently 
  has 
  not 
  been 
  met 
  with 
  by 
  Mr. 
  Lewis. 
  

  

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

  

  Niger, 
  subopacus, 
  rugoso-puuctatus 
  ; 
  antennis, 
  palpis 
  pedibusque 
  

   fusco-testaceis 
  ; 
  elytris 
  tborace 
  paulo 
  longioribus 
  ; 
  abdomine 
  

   baud 
  omnino 
  imruarginato, 
  tarsomm 
  lobis 
  occultis. 
  

  

  Long. 
  -A 
  millim. 
  

  

  Palpi 
  and 
  antennas 
  fuscous, 
  the 
  basal 
  joint 
  of 
  the 
  latter 
  

   rather 
  clearer 
  yellow. 
  Head 
  broad, 
  a 
  little 
  concave, 
  with 
  a 
  

   broad, 
  very 
  slight 
  interstice 
  separating 
  the 
  indistinct 
  ocular 
  

   grooves. 
  Thorax 
  about 
  as 
  long 
  as 
  broad, 
  densely 
  rugose- 
  

   punctate, 
  longitudinally 
  impressed 
  on 
  the 
  middle, 
  much 
  

   rounded 
  at 
  the 
  sides. 
  Elytra 
  coarsely 
  and 
  closely 
  longitu- 
  

   dinally 
  rugose. 
  Hind 
  body 
  rather 
  slender, 
  subcylindric, 
  

   coarsely 
  punctate, 
  the 
  segments 
  ecuspidate. 
  The 
  male 
  has 
  

   a 
  broad, 
  only 
  moderately 
  deep, 
  angular 
  notch 
  on 
  the 
  last 
  ven- 
  

   tral 
  plate, 
  and 
  the 
  preceding 
  segment 
  is 
  broadly 
  but 
  very 
  

   slightly 
  depressed 
  along 
  the 
  middle 
  towards 
  the 
  extremity. 
  

  

  Nikko. 
  

  

  This 
  species 
  is 
  liable 
  to 
  be 
  overlooked, 
  as 
  its 
  true 
  position 
  

   is 
  not 
  very 
  clear 
  ; 
  the 
  tarsal 
  lobes 
  are 
  short 
  and 
  can 
  only 
  be 
  

   seen 
  by 
  a 
  careful 
  inspection, 
  and 
  the 
  margins 
  of 
  the 
  hind 
  

   body 
  are 
  not 
  quite 
  absent 
  ; 
  hence 
  it 
  might 
  be 
  looked 
  for 
  in 
  

   section 
  I. 
  A*** 
  of 
  Erichson. 
  

  

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

   Niger, 
  parum 
  nitidus, 
  subcylindricus 
  : 
  antennis. 
  palpis 
  pedibusque 
  

  

  