﻿42 
  Dr. 
  D. 
  Sharp 
  on 
  

  

  series, 
  this 
  latter 
  character 
  being, 
  however, 
  not 
  easily 
  observed 
  

   on 
  account 
  of 
  the 
  great 
  irregularity 
  of 
  the 
  series. 
  The 
  fact 
  

   that 
  the 
  male 
  tarsi 
  are 
  only 
  about 
  half 
  as 
  broad 
  as 
  they 
  are 
  in 
  

   P. 
  prolatus 
  differentiates 
  the 
  species 
  with 
  certainty. 
  

  

  Rare, 
  Kawasaki 
  near 
  Yokohama, 
  Awomori, 
  and 
  Sapporo. 
  

  

  Philonthus 
  macrocephalus, 
  n. 
  sp. 
  (Group 
  7, 
  Erichson.) 
  

  

  Depressus, 
  niger 
  ; 
  elytris 
  rufis 
  ; 
  antennarum 
  apice, 
  palpis, 
  tibiis 
  

   tarsisque 
  rufescentibus 
  ; 
  capite 
  majore, 
  fortiter 
  disperse 
  punc- 
  

   tate- 
  ; 
  prothorace 
  haud 
  elongato, 
  basin 
  versus 
  angustato, 
  seriebus 
  

   dorsalibus 
  irregularibus 
  circiter 
  8-punctatis 
  ; 
  elytris 
  abdoruineque 
  

   crebre 
  punctatis. 
  

  

  Long. 
  13 
  millim. 
  

  

  Antennas 
  not 
  elongate 
  nor 
  stout, 
  blackish, 
  becoming 
  ob- 
  

   scurely 
  red 
  towards 
  the 
  extremity 
  ; 
  penultimate 
  joint 
  evidently 
  

   shorter 
  than 
  broad. 
  Head 
  flat, 
  subquadrate, 
  with 
  numerous 
  

   coarse 
  distant 
  punctures, 
  but 
  with 
  a 
  broad 
  space 
  along 
  the 
  

   middle 
  impunctate 
  ; 
  underside 
  impunctate. 
  Thorax 
  not 
  so 
  

   large 
  as 
  the 
  head, 
  anterior 
  angles 
  well 
  marked, 
  the 
  discoidal 
  

   series 
  consisting 
  of 
  coarse 
  punctures, 
  placed 
  more 
  or 
  less 
  

   irregularly 
  and 
  varying 
  in 
  number 
  from 
  seven 
  to 
  nine. 
  

   Elytra, 
  scutellum, 
  and 
  hind 
  body 
  somewhat 
  coarsely 
  and 
  

   closely 
  punctate. 
  

  

  I 
  am 
  not 
  able 
  to 
  point 
  out 
  any 
  sexual 
  characters 
  ; 
  the 
  front 
  

   tarsi 
  are 
  slightly 
  dilated, 
  no 
  doubt 
  in 
  each 
  sex. 
  

  

  This 
  species 
  has 
  the 
  upper 
  marginal 
  line 
  of 
  the 
  thorax 
  

   greatly 
  deflexed 
  in 
  front, 
  so 
  that 
  the 
  longer 
  tactile 
  seta 
  is 
  

   remote 
  from 
  it 
  ; 
  this 
  will 
  ultimately 
  require 
  its 
  removal 
  from 
  

   Philonthus. 
  It 
  has 
  the 
  aspect 
  of 
  a 
  Belonuchus, 
  but 
  cannot 
  

   be 
  placed 
  in 
  that 
  genus 
  because 
  of 
  its 
  unarmed 
  femora 
  and 
  

   (slightly) 
  dilated 
  front 
  feet. 
  

  

  A 
  small 
  series 
  was 
  found 
  at 
  Ichiuchi 
  and 
  Yuyama 
  in 
  May 
  

   1881. 
  

  

  Philonthus 
  daimio, 
  n. 
  sp. 
  (Group 
  8, 
  Erichson.) 
  

  

  Niger 
  ; 
  capite 
  tboraceque 
  nigro-subameis 
  ; 
  elytris 
  fusco-aeneis, 
  ab- 
  

   domine 
  subversicolore 
  breviter 
  flavo-pubescente; 
  pedibus 
  testaceis, 
  

   tibiis 
  plus 
  minusve 
  fuscescentibus 
  ; 
  capite 
  tboracequo 
  crebrius 
  

   punctatis, 
  boc 
  area 
  longitudinali 
  laevigata 
  ; 
  elytris 
  abdomineque 
  

   dense 
  punctatis. 
  

  

  Long. 
  9-11 
  millim. 
  

  

  Antennas 
  blackish, 
  slender, 
  each 
  joint 
  longer 
  than 
  broad. 
  

   Head 
  very 
  numerously 
  punctured, 
  the 
  punctures 
  more 
  scanty 
  

   towards 
  the 
  middle, 
  where 
  there 
  is 
  a 
  small 
  glabrous 
  space. 
  

  

  