﻿the 
  Staphylinidas 
  of 
  Japan. 
  255 
  

  

  angle 
  and 
  bearing 
  some 
  short 
  dark 
  setce; 
  preceding 
  segment 
  

   with 
  a 
  much 
  broader 
  and 
  shallower 
  but 
  otherwise 
  similar 
  

   excision. 
  

  

  Nagasaki, 
  Nikko, 
  Miyanoshita 
  ; 
  in 
  spring 
  and 
  early 
  

   summer 
  , 
  six 
  examples. 
  

  

  Lathrobium 
  brachypterum, 
  n. 
  sp. 
  

  

  Piceum, 
  nitidum 
  ; 
  antennis 
  pedibusque 
  rufis 
  ; 
  capite 
  brevi, 
  subtri- 
  

  

  angulari 
  ; 
  elytris 
  tliorace 
  fere 
  duplo 
  brevioribus. 
  

   Long. 
  8 
  millim. 
  

  

  This 
  is 
  very 
  closely 
  allied 
  to 
  L. 
  pollens, 
  but 
  is 
  a 
  much 
  

   smaller 
  insect 
  and 
  more 
  parallel 
  ; 
  the 
  head 
  is 
  much 
  smaller 
  

   and 
  is 
  quite 
  sparingly 
  punctured, 
  the 
  thorax 
  is 
  oblong, 
  not 
  

   at 
  all 
  narrowed 
  behind, 
  and 
  the 
  punctuation 
  of 
  the 
  hind 
  body 
  

   is 
  quite 
  dense 
  and 
  tine. 
  In 
  the 
  male 
  the 
  terminal 
  ventral 
  

   plate 
  is 
  not 
  in 
  the 
  least 
  emarginate, 
  but 
  its 
  hind 
  margin 
  is 
  

   slightly 
  rounded, 
  a 
  broad 
  space 
  in 
  front 
  of 
  this 
  is 
  slightly 
  

   flattened 
  and 
  feebiy 
  granular 
  ; 
  on 
  the 
  preceding 
  segment 
  there 
  

   is 
  a 
  very 
  obscure 
  narrow 
  impression 
  just 
  perceptible 
  along 
  the 
  

   middle. 
  

  

  Nagasaki, 
  Miyanoshita 
  ; 
  five 
  specimens. 
  

  

  Lathrobium 
  monticola, 
  n. 
  sp. 
  

  

  Angustulum, 
  piceum, 
  nitidum 
  ; 
  antennis 
  pedibusque 
  ruiis 
  ; 
  capite 
  

  

  parvo, 
  triangulari 
  ; 
  elytris 
  tborace 
  duplo 
  brevioribus. 
  

   Long. 
  7 
  millim. 
  

  

  Closely 
  allied 
  to 
  L. 
  brachypterum, 
  but 
  smaller 
  and 
  more 
  

   slender, 
  with 
  more 
  feeble 
  antennae, 
  the 
  head 
  more 
  triangular, 
  

   and 
  the 
  eyes 
  remarkably 
  small 
  ; 
  the 
  elytra 
  more 
  sparingly 
  and 
  

   finely 
  punctured 
  and 
  still 
  shorter. 
  The 
  male 
  is 
  without 
  

   positive 
  sexual 
  characters, 
  but 
  the 
  hind 
  margin 
  of 
  the 
  last 
  

   ventral 
  plate 
  is 
  not 
  produced 
  and 
  subacuminate 
  as 
  it 
  is 
  in 
  the 
  

   female. 
  

  

  This 
  remarkable 
  species 
  is 
  a 
  mountain 
  insect 
  and 
  was 
  

   found 
  near 
  Nagasaki, 
  April 
  11th, 
  1881; 
  one 
  pair. 
  

  

  Lathrobium 
  carinicolle, 
  n. 
  sp. 
  

  

  Angustulum, 
  subdepressum, 
  nitidum, 
  rufulum, 
  dense 
  punctatum 
  ; 
  

  

  capile, 
  tliorace 
  elytrorumque 
  basi 
  plus 
  minusve 
  fusco-obscuratis 
  ; 
  

  

  tliorace 
  oblongo, 
  medio 
  linea 
  arguta, 
  subelevata, 
  laevigata. 
  

   Long. 
  7-8 
  millim. 
  

  

  Antennae 
  red, 
  rather 
  elongate, 
  penultimate 
  joint 
  longer 
  

  

  18* 
  

  

  