﻿the 
  Staphylinidae 
  of 
  Japan. 
  253 
  

  

  This 
  is 
  an 
  abnormal 
  Leptacinus, 
  on 
  account 
  of 
  the 
  obsolete 
  

   frontal 
  grooves. 
  

  

  Hitoyoshi, 
  May 
  17th, 
  and 
  under 
  bark 
  of 
  fir, 
  Kunia 
  Kuni, 
  

   March 
  1881; 
  one 
  example 
  from 
  each 
  locality. 
  

  

  Nudobius 
  apicipennis, 
  n. 
  sp. 
  

  

  8ubdepressns, 
  nigerrimus, 
  nitidus, 
  pedibus 
  rufis 
  ; 
  antennis 
  piceis, 
  

  

  elytrorura 
  apice 
  testaceo-raarginato. 
  

   Long. 
  8-9 
  millini. 
  

  

  Head 
  oblong, 
  closely 
  and 
  coarsely 
  punctured. 
  Thorax 
  

   very 
  shining, 
  narrowed 
  behind, 
  and 
  with 
  the 
  sides 
  sinuate 
  in 
  

   the 
  middle 
  ; 
  the 
  dorsal 
  series 
  of 
  punctures 
  are 
  very 
  distinct, 
  

   consisting 
  each 
  of 
  eight 
  punctures, 
  and 
  there 
  are 
  also 
  a 
  few 
  

   punctures 
  near 
  the 
  side 
  and 
  front 
  margin. 
  Elytra 
  longer 
  

   than 
  the 
  thorax, 
  shining 
  black, 
  with 
  a 
  faint 
  blue 
  or 
  green 
  

   tinge, 
  and 
  the 
  hind 
  margin 
  yellow 
  ; 
  finely 
  and 
  sparingly 
  

   punctate. 
  Underside 
  of 
  head 
  coarsely 
  punctate. 
  

  

  This 
  species 
  is 
  allied 
  to 
  the 
  European 
  N. 
  collaris 
  and 
  lives 
  

   exclusively 
  under 
  bark 
  ; 
  it 
  was 
  met 
  with 
  at 
  Miyanoshita, 
  

   Kiga, 
  Kuma 
  Kuni, 
  Sendai, 
  and 
  Sapporo. 
  

  

  Subfam. 
  Pmberin^. 
  

  

  Group 
  Latheobiina. 
  

  

  In 
  this 
  group 
  I 
  have 
  established 
  several 
  new 
  genera 
  sepa- 
  

   rated 
  from 
  Litkocharis, 
  treating 
  the 
  eastern 
  forms 
  in 
  a 
  manner 
  

   similar 
  to 
  that 
  already 
  applied 
  to 
  the 
  Neotropical 
  forms 
  in 
  

   the 
  ' 
  Biologia 
  Centrali-Americana.' 
  

  

  Cryptohium 
  cuneatum 
  } 
  n. 
  sp. 
  

  

  Nigrum, 
  nitidum 
  ; 
  antennis 
  fuscis, 
  pedibus 
  testaceis 
  ; 
  capite 
  angusto, 
  

  

  dense 
  fortiterque 
  punctate- 
  ; 
  elytris 
  thorace 
  vix 
  longioribus. 
  

   Long. 
  8-9 
  milliui. 
  

  

  Antennae 
  infuscate 
  red, 
  paler 
  at 
  the 
  extremity. 
  Head 
  long 
  

   and 
  narrow, 
  much 
  narrower 
  than 
  the 
  elytra, 
  densely 
  and 
  

   coarsely 
  punctate, 
  the 
  space 
  between 
  the 
  antennal 
  elevations 
  

   much 
  sculptured. 
  Thorax 
  long 
  and 
  narrow, 
  not 
  narrowed 
  

   towards 
  the 
  front, 
  moderately 
  coarsely 
  and 
  not 
  closely 
  punc- 
  

   tured, 
  very 
  shining, 
  opalescent, 
  a 
  broad 
  space 
  along 
  the 
  

   middle 
  impunctate. 
  Elytra 
  narrow, 
  closely 
  and 
  rather 
  

   coarsely 
  punctate, 
  a 
  little 
  shining. 
  Male 
  with 
  a 
  very 
  shallow 
  

   broad 
  excision 
  of 
  the 
  last 
  ventral 
  plate. 
  

  

  Ann. 
  iSs 
  May. 
  X. 
  Hist. 
  Ser. 
  6. 
  Vol. 
  iii. 
  IS 
  

  

  