﻿the 
  Staphylinidae 
  of 
  Japan. 
  251 
  

  

  as 
  long 
  as 
  the 
  thorax, 
  pale 
  red, 
  rather 
  finely 
  and 
  distantly 
  

   punctured. 
  Hind 
  body 
  rather 
  rough. 
  In 
  one 
  of 
  the 
  sexes 
  of 
  

   this 
  species 
  the 
  terminal 
  segment 
  exhibits 
  behind 
  a 
  quite 
  cir- 
  

   cular 
  orifice, 
  the 
  hind 
  margin 
  of 
  which 
  is 
  lined 
  internally 
  by 
  

   a 
  ring 
  of 
  black, 
  densely 
  and 
  regularly 
  crenate, 
  corneous 
  sub- 
  

   stance. 
  

  

  Nikko 
  and 
  Miyanoshita 
  ; 
  three 
  examples. 
  

  

  This 
  is 
  closely 
  allied 
  to 
  X. 
  pleuralis, 
  but 
  has 
  the 
  thorax 
  

   more 
  elongate 
  and 
  with 
  smaller 
  punctures, 
  which 
  are 
  more 
  

   numerous 
  in 
  the 
  dorsal 
  series 
  ; 
  the 
  elytra 
  are 
  bright 
  pale 
  red 
  

   and 
  the 
  head 
  is 
  a 
  little 
  narrower. 
  

  

  Xantholinus 
  cunctator, 
  n. 
  sp. 
  

  

  X 
  lineari, 
  auct., 
  peraffinis 
  ; 
  nigricans, 
  nitidus, 
  vix 
  subseneus 
  ; 
  an- 
  

   tennis 
  pedibusque 
  rufis 
  ; 
  thorace 
  crebre 
  punctato, 
  seriebus 
  dor- 
  

   salibus 
  baud 
  discretis. 
  

  

  Long. 
  G 
  millim. 
  

  

  Antennae 
  with 
  second 
  joint 
  elongate, 
  considerably 
  longer 
  

   than 
  the 
  third. 
  Head 
  rather 
  short, 
  oval, 
  sparingly 
  punctate. 
  

   Thorax 
  oblong, 
  with 
  the 
  lateral 
  punctures 
  numerous, 
  the 
  

   dorsal 
  series 
  being 
  not 
  separated 
  from 
  the 
  lateral 
  punctures. 
  

   Elytra 
  about 
  as 
  long 
  as 
  the 
  thorax, 
  shining, 
  sparingly 
  and 
  

   rather 
  strongly 
  punctate. 
  

  

  This 
  is 
  very 
  closely 
  allied 
  to 
  the 
  European 
  X. 
  linearis, 
  but 
  

   is 
  rather 
  smaller 
  and 
  has 
  the 
  third 
  joint 
  of 
  the 
  antennas 
  

   smaller, 
  the 
  head 
  considerably 
  shorter, 
  and 
  the 
  thoracic 
  punc- 
  

   tures 
  more 
  numerous. 
  

  

  Only 
  two 
  examples 
  have 
  been 
  found 
  at 
  Miyanoshita. 
  

  

  Xantholinus 
  angusticeps, 
  n. 
  sp. 
  

  

  Niger, 
  nitidus; 
  antennis 
  pedibusque 
  rufis; 
  capite 
  angusto, 
  ovali, 
  

   parce 
  subtiliter 
  punctato 
  ; 
  thorace 
  seriebus 
  dorsalibus 
  circiter 
  12- 
  

   punctatis, 
  ad 
  latera 
  parce 
  irregulariter 
  punctato, 
  punctis 
  omnibus, 
  

   subtilibus. 
  

  

  Long. 
  6 
  millim. 
  

  

  Head 
  elongate 
  and 
  narrow, 
  considerably 
  narrower 
  than 
  the 
  

   thorax. 
  Antennae 
  with 
  the 
  second 
  and 
  third 
  joints 
  rather 
  

   slender, 
  the 
  latter 
  the 
  longer. 
  Thorax 
  rather 
  slender, 
  oblong, 
  

   shining 
  black, 
  its 
  punctures 
  fine, 
  consisting 
  of 
  two 
  dorsal 
  

   series 
  of 
  twelve 
  punctures 
  each, 
  and 
  the 
  same 
  number 
  of 
  

   lateral 
  punctures 
  on 
  each 
  side, 
  these 
  latter 
  irregularly 
  placed. 
  

   Elytra 
  with 
  an 
  indistinct 
  brassy 
  tinge, 
  not 
  quite 
  so 
  long 
  as 
  

   the 
  thorax, 
  rather 
  sparingly 
  and 
  finely 
  punctate. 
  

  

  This 
  species 
  has 
  somewhat 
  the 
  appearance 
  of 
  the 
  genus 
  

  

  