﻿120 
  On 
  the 
  Staphylinida? 
  of 
  Japan. 
  

  

  riores 
  dilatatse, 
  teretes, 
  tarsi 
  auteriores 
  latissime 
  dilatati, 
  laxi, 
  

   articulo 
  ultimo 
  brevi, 
  haud 
  exserto. 
  

  

  This 
  is 
  another 
  form 
  of 
  that 
  interesting 
  group 
  of 
  Staphy- 
  

   linini 
  * 
  of 
  which 
  Eucibdelus 
  may 
  be 
  taken 
  as 
  the 
  type, 
  from 
  

   all 
  of 
  which 
  it 
  is 
  distinguished 
  by 
  the 
  peculiar 
  structure 
  of 
  

   the 
  tarsi. 
  Those 
  of 
  the 
  front 
  feet 
  are 
  very 
  broad 
  and 
  

   somewhat 
  asymmetrical, 
  the 
  outside 
  lobe 
  being 
  differently 
  

   shaped 
  from 
  the 
  inner; 
  the 
  basal 
  joint 
  very 
  short 
  and 
  very 
  

   strongly 
  transverse, 
  the 
  fourth 
  joint 
  large 
  and 
  dilated, 
  the 
  

   fifth 
  short 
  and 
  broad, 
  only 
  its 
  claws 
  extending 
  beyond 
  the 
  

   fourth 
  joint, 
  these 
  abruptly 
  curved 
  to 
  underneath 
  the 
  foot 
  ; 
  on 
  

   the 
  middle 
  and 
  hinder 
  legs 
  the 
  fourth 
  joint 
  is 
  provided 
  with 
  

   slender 
  elongate 
  lobes, 
  the 
  claws 
  of 
  the 
  elongate 
  terminal 
  

   joint 
  large. 
  The 
  head 
  is 
  rather 
  short 
  and 
  broad, 
  as 
  in 
  Tricho- 
  

   cosmetes 
  and 
  Pkiletcerius, 
  the 
  thorax 
  is 
  without 
  tubercular 
  

   anterior 
  prominences 
  ; 
  both 
  these 
  parts 
  are 
  destitute 
  of 
  

   tomentum. 
  The 
  other 
  characters 
  appear 
  to 
  be 
  much 
  the 
  

   same 
  as 
  in 
  Eucibdelus. 
  

  

  * 
  The 
  following 
  characters 
  are 
  those 
  of 
  the 
  most 
  remarkable 
  genus 
  of 
  

   this 
  group 
  yet 
  brought 
  to 
  our 
  knowledge 
  : 
  — 
  

  

  Rhynchocheilus, 
  nov. 
  gen. 
  

  

  Corpus 
  elongatum, 
  gracile, 
  tomentosum. 
  Labrum 
  omnium 
  maximum, 
  

   capite 
  paulo 
  brevius, 
  anterius 
  acuminatum 
  et 
  deflexum, 
  usque 
  ad 
  basiu 
  

   fissum, 
  lobi 
  singuli 
  marginibus 
  hirsutis. 
  Palpi 
  maxillares 
  subrobusti, 
  

   articulo 
  ultimo 
  quam 
  preecedente 
  breviore 
  ; 
  palpi 
  labiales 
  crassi, 
  articulo 
  

   secundo 
  apicem 
  versus 
  incrassato, 
  articulo 
  ultimo 
  parvo 
  crasso. 
  Caput 
  

   elongatum, 
  oculis 
  convexis. 
  Prothorax 
  absque 
  prominentia, 
  angulis 
  

   anterioribus 
  rotundatis, 
  omnium 
  maxime 
  defiexis. 
  Tibise 
  pubescentes, 
  

   espinulosse, 
  anteriores 
  dilatatae, 
  teretes 
  ; 
  tarsi 
  anteriores 
  in 
  utroque 
  sexu 
  

   dilatati. 
  

  

  Rhynchocheilus 
  pectoralis, 
  n. 
  sp. 
  

  

  Niger; 
  antennarum 
  basi 
  pedibusque 
  testaceis 
  ; 
  elytris 
  fulvis 
  ; 
  capite 
  

   thoraceque 
  dense 
  subtiliter 
  punctatis, 
  flavo-tomentosis, 
  illo 
  anterius 
  bi- 
  

   impresso; 
  elytris 
  elongatis, 
  dense 
  subtiliusque 
  subrugose 
  punctatis, 
  

   tomento 
  sparso 
  irregulariter, 
  quasi 
  maculatim, 
  vestitis 
  ; 
  abdomine 
  elon- 
  

   gato, 
  angusto, 
  tomento 
  pallide 
  rlavo 
  vestito, 
  segmentis 
  basalibus 
  singulo 
  

   in 
  medio 
  ad 
  apicem 
  convexo, 
  ibidemque 
  nudo. 
  uitido. 
  

  

  Long. 
  23 
  millim. 
  

  

  Mas 
  segmento 
  ultimo 
  veutrali 
  ad 
  apicem 
  profuude 
  exciso. 
  

  

  Hah. 
  Malacca, 
  Castelnau. 
  

  

  The 
  enormous 
  labrum 
  is 
  interesting 
  when 
  we 
  bear 
  in 
  mind 
  the 
  similar 
  

   increase 
  in 
  this 
  organ 
  in 
  some 
  of 
  the 
  wonderful 
  Cicindelidse 
  found 
  in 
  the 
  

   same 
  region. 
  Like 
  them 
  this 
  insect 
  is 
  no 
  doubt 
  arboreal 
  and 
  predaceous 
  

   in 
  its 
  habits 
  ; 
  the 
  slender 
  hind 
  tarsi 
  are 
  densely 
  pubescent 
  beneath 
  and 
  

   their 
  angles 
  sufficiently 
  prolonged 
  to 
  be 
  called 
  sublobate. 
  Wallace 
  found 
  

   a 
  second 
  smaller 
  species 
  in 
  Malacca, 
  1 
  believe 
  at 
  Mount 
  Ophir. 
  

  

  