﻿the 
  Staphylinidee 
  of 
  Japan. 
  469 
  

  

  scarcely 
  sinuate 
  till 
  near 
  the 
  hind 
  angle, 
  there 
  obliquely 
  nar- 
  

   rowed, 
  but 
  scarcely 
  excised. 
  Elytra 
  extremely 
  coarsely 
  

   punctured 
  ; 
  on 
  the 
  hinder 
  margin 
  of 
  each 
  is 
  a 
  black 
  mark, 
  

   extending 
  forwards 
  and 
  furcate, 
  one 
  branch 
  nearly 
  attaining 
  

   the 
  lateral 
  margin 
  and 
  the 
  other 
  nearly 
  touching 
  the 
  suture. 
  

   Male 
  with 
  the 
  middle 
  tibiae 
  strongly 
  curved 
  and 
  the 
  inner 
  

   face 
  of 
  the 
  hind 
  tibia 
  armed 
  above 
  the 
  middle 
  with 
  a 
  strong 
  

   tooth. 
  

  

  Oyayama, 
  12th 
  March, 
  1881. 
  

  

  Megarthrus 
  scriptus, 
  n. 
  sp. 
  

  

  Flavo-ferrugineus 
  ; 
  elytris 
  fortiter 
  punctatis, 
  ad 
  apicem 
  nigro- 
  

  

  maculatis. 
  

   Long, 
  vix 
  2 
  millim. 
  

  

  Apparently 
  closely 
  allied 
  to 
  M. 
  corticalis, 
  but 
  smaller, 
  and 
  

   with 
  the 
  basal 
  two 
  joints 
  of 
  the 
  antenna? 
  more 
  slender 
  and 
  

   the 
  black 
  mark 
  differently 
  disposed 
  on 
  the 
  elytra, 
  the 
  exten- 
  

   sion 
  of 
  it 
  forwards 
  towards 
  the 
  outer 
  margin 
  being 
  absent. 
  

  

  Only 
  two 
  specimens 
  have 
  been 
  procured 
  ; 
  they 
  are 
  no 
  doubt 
  

   males, 
  the 
  inner 
  tibiae 
  being 
  slender 
  and 
  slightly 
  excised 
  

   below 
  the 
  base 
  and 
  a 
  little 
  angulate 
  ; 
  the 
  hind 
  tibiae 
  are 
  

   slender 
  and 
  simple. 
  

  

  Yuyama 
  and 
  Chiuzenji 
  ; 
  two 
  specimens. 
  

  

  Subfam. 
  Omalhnm. 
  

   Anthophagus 
  aquatilis, 
  n. 
  sp. 
  

  

  Latus, 
  subdepressus, 
  niger, 
  nitidus, 
  palpis 
  tarsisque 
  rufescentibus 
  ; 
  

  

  antennis 
  articulo 
  basali 
  dilatato 
  ; 
  prothorace 
  transverse), 
  subtiliter 
  

  

  punctate 
  

   Long. 
  6-7 
  millim. 
  

  

  Antennae 
  slender, 
  very 
  long, 
  basal 
  joint 
  elongate, 
  much 
  

   thicker 
  than 
  the 
  others 
  ; 
  terminal 
  joint 
  of 
  maxillary 
  palpus 
  

   very 
  small. 
  Head 
  large, 
  as 
  broad 
  as 
  the 
  thorax, 
  deeply 
  de- 
  

   pressed 
  in 
  front, 
  and 
  with 
  a 
  large, 
  broad, 
  deep 
  impression 
  on 
  

   the 
  middle 
  of 
  the 
  vertex 
  behind 
  ; 
  punctuation 
  obsolete. 
  

   Thorax 
  very 
  much 
  narrower 
  than 
  the 
  elytra, 
  strongly 
  trans- 
  

   verse, 
  much 
  narrowed 
  behind, 
  hind 
  angles 
  rectangular, 
  

   sharply 
  defined, 
  the 
  surface 
  rather 
  finely 
  and 
  not 
  deeply 
  

   punctate, 
  with 
  an 
  impression 
  on 
  the 
  middle 
  in 
  front. 
  Elytra 
  

   broad, 
  more 
  than 
  twice 
  as 
  long 
  as 
  the 
  thorax, 
  rather 
  coarsely, 
  

   moderately 
  closely 
  punctured, 
  shining. 
  Legs 
  slender 
  ; 
  tarsal 
  

   claws 
  long 
  and 
  slender, 
  without 
  lobes. 
  

  

  Captured 
  plentifully 
  under 
  stones 
  in 
  the 
  water 
  at 
  the 
  edge 
  

   of 
  the 
  lake 
  at 
  Hakone 
  in 
  May 
  1880. 
  

  

  