﻿the 
  Staphylinida3 
  of 
  Japan. 
  39 
  

  

  inflexed 
  side 
  margin 
  yellow 
  ; 
  the 
  middle 
  coxte 
  are 
  nearly 
  con- 
  

   tiguous. 
  

  

  This 
  is 
  a 
  very 
  distinct 
  species 
  : 
  five 
  examples 
  have 
  been 
  

   met 
  with 
  ; 
  they 
  all 
  have 
  the 
  front 
  feet 
  moderately 
  dilated, 
  

   their 
  sex 
  being 
  uncertain 
  ; 
  those 
  examined 
  beneath 
  are 
  appa- 
  

   rently 
  males, 
  but 
  have 
  no 
  notch 
  on 
  the 
  last 
  ventral 
  plate. 
  

  

  Nikko, 
  Chiuzenji, 
  22nd 
  August, 
  1881. 
  

  

  Philonthus 
  angustatus. 
  

   Philonthus 
  angustatus, 
  Kr. 
  Wiegm. 
  Arch. 
  1859, 
  i. 
  p. 
  92. 
  

  

  This 
  is 
  perhaps 
  not 
  sufficiently 
  distinct 
  from 
  P. 
  thermarum, 
  

   Aube, 
  though 
  Fauvel's 
  statement 
  (Faune 
  G. 
  R. 
  iii. 
  p. 
  471) 
  

   that 
  the 
  differences 
  pointed 
  out 
  by 
  Kraatz 
  are 
  absolutely 
  

   illusory 
  is 
  at 
  least 
  exaggerated; 
  I 
  have 
  not, 
  however, 
  seen 
  

   sufficient 
  examples 
  to 
  bring 
  me 
  to 
  a 
  positive 
  conclusion 
  on 
  

   the 
  matter. 
  

  

  Mr. 
  Lewis 
  met 
  with 
  an 
  example 
  at 
  Nagasaki 
  on 
  the 
  28th 
  

   May, 
  1881, 
  and 
  the 
  individual 
  from 
  Northern 
  China 
  men- 
  

   tioned 
  by 
  me 
  in 
  speaking 
  of 
  P. 
  thermarum 
  (Trans. 
  Ent. 
  Soc. 
  

   1874, 
  p. 
  44) 
  is 
  also 
  to 
  be 
  referred 
  to 
  P. 
  angustatus. 
  

  

  Philonthus 
  sulcifrons, 
  n. 
  sp. 
  (Group 
  5, 
  Erichson.) 
  

  

  Minutus, 
  uiger, 
  nitiduhis 
  ; 
  antennarum 
  basi 
  pedibusque 
  testa 
  ceis 
  ; 
  

   elytris 
  pallidis, 
  basi 
  fuscis; 
  capite 
  oblongo, 
  anterius 
  impresso 
  

   profundeque 
  canaliculate* 
  ; 
  elytris 
  parce 
  punctatis, 
  prothorace 
  

   paulo 
  longioribus. 
  

  

  Long. 
  4 
  millim. 
  

  

  This 
  is 
  the 
  insect 
  alluded 
  to 
  by 
  me 
  (Trans. 
  Ent. 
  Soc. 
  1874, 
  

   p. 
  44) 
  as 
  possibly 
  a 
  variety 
  of 
  P. 
  thermarum 
  j 
  but 
  Mr. 
  Lewis 
  

   has 
  now 
  brought 
  back 
  a 
  small 
  series 
  from 
  which 
  it 
  would 
  

   appear 
  more 
  probably 
  to 
  be 
  distinct, 
  the 
  remarkable 
  depres- 
  

   sion 
  and 
  channel 
  on 
  the 
  front 
  of 
  the 
  head 
  being 
  character- 
  

   istic; 
  it 
  is 
  also 
  of 
  darker 
  colour, 
  rather 
  larger 
  and 
  broader, 
  

   with 
  stouter, 
  differently 
  coloured 
  antennae. 
  

  

  1 
  have 
  seen 
  from 
  various 
  sources 
  ten 
  examples, 
  six 
  of 
  which 
  

   were 
  captured 
  by 
  Mr. 
  Lewis 
  at 
  Nagasaki 
  on 
  the 
  22nd 
  Feb- 
  

   ruary, 
  1881. 
  

  

  Philonthus 
  pygmmus. 
  

  

  Plulonth.uspycjmce.us, 
  Kr. 
  Wiegm. 
  Arch. 
  1859, 
  i. 
  p. 
  93. 
  

  

  This 
  is 
  regarded 
  by 
  Fauvel 
  (/. 
  sup. 
  cit.) 
  as 
  the 
  same 
  as 
  

   P. 
  thermarum, 
  but 
  appears 
  to 
  me 
  more 
  probably 
  distinct. 
  

  

  