﻿264 
  Dr. 
  D. 
  Sharp 
  on 
  

  

  tainlj 
  ascertained, 
  as 
  T 
  have 
  seen 
  no 
  insect 
  from 
  Ceylon 
  or 
  

   any 
  other 
  locality 
  than 
  Japan 
  that 
  I 
  can 
  assign 
  to 
  the 
  genus, 
  

   and 
  the 
  trophi 
  have 
  not 
  been 
  dissected. 
  

  

  Medon. 
  

  

  This 
  genus, 
  as 
  I 
  have 
  pointed 
  out 
  elsewhere 
  in 
  confirma- 
  

   tion 
  and 
  amplification 
  of 
  the 
  views 
  of 
  Thomson 
  and 
  Key, 
  is 
  

   quite 
  distinct 
  from 
  Lithockaris. 
  Most 
  of 
  the 
  Japanese 
  species 
  

   of 
  it 
  are, 
  however, 
  dissimilar 
  in 
  appearance 
  from 
  the 
  Euro- 
  

   pean 
  forms, 
  and 
  some 
  of 
  them 
  will 
  probably 
  prove 
  generi- 
  

   cally 
  distinct. 
  

  

  Medon 
  rubecuhis, 
  n. 
  sp. 
  

  

  Angustulus, 
  densissime 
  subtilissime 
  puuctatus, 
  subopacus, 
  nigricans 
  ; 
  

  

  elytris, 
  autennis 
  pedibusque 
  dilute 
  rufis. 
  

   Long. 
  4|-5 
  millim. 
  

  

  Antennas 
  slender, 
  third 
  joint 
  about 
  equal 
  in 
  length 
  to 
  the 
  

   second, 
  slightly 
  more 
  slender 
  than 
  it, 
  penultimate 
  joint 
  not 
  

   so 
  long 
  as 
  broad. 
  Head 
  subquadrate, 
  very 
  finely 
  and 
  densely 
  

   punctured, 
  quite 
  dull. 
  Thorax 
  subquadrate, 
  densely, 
  very 
  

   finely 
  punctate, 
  without 
  any 
  definite 
  smooth 
  line 
  along 
  the 
  

   middle, 
  very 
  feebly 
  canaliculate 
  in 
  the 
  middle 
  behind. 
  

   Elytra 
  longer 
  than 
  the 
  thorax, 
  dilute 
  red, 
  with 
  the 
  base 
  in- 
  

   fuscate, 
  densely 
  and 
  finely 
  punctate. 
  Legs 
  slender, 
  hind 
  

   tarsi 
  quite 
  slender. 
  

  

  Iwaki 
  and 
  Sapporo 
  ; 
  two 
  badly 
  preserved 
  females. 
  

   Though 
  I 
  have 
  not 
  been 
  able 
  to 
  see 
  the 
  structure 
  of 
  the 
  

   mandibles 
  and 
  labrum, 
  I 
  do 
  not 
  doubt 
  this 
  being 
  a 
  Medon. 
  

   It 
  bears 
  a 
  considerable 
  resemblance 
  to 
  M. 
  prolixus, 
  but 
  

   possesses 
  very 
  different 
  feet. 
  

  

  Medon 
  Leicisius. 
  

   Litlwcharis 
  Lewisia, 
  Sharp, 
  Trans. 
  Ent. 
  Soc. 
  Loud. 
  1874, 
  p. 
  G5. 
  

  

  Nagasaki, 
  Yokohama, 
  Miyanoshita, 
  Ichiuchi, 
  Hitoyoshi, 
  

   Hakone, 
  Nikko. 
  All 
  the 
  examples 
  have 
  been 
  found 
  under 
  

   bark, 
  so 
  that 
  the 
  occurrence 
  of 
  the 
  example 
  originally 
  

   described 
  on 
  the 
  sea-shore 
  was 
  no 
  doubt 
  merely 
  accidental. 
  

   I 
  have 
  not 
  detected 
  any 
  sexual 
  characters. 
  The 
  colour 
  of 
  

   the 
  head 
  and 
  thorax 
  varies 
  from 
  dark 
  red 
  to 
  black. 
  

  

  Found 
  in 
  many 
  localities, 
  Nikko 
  being 
  the 
  most 
  northern 
  

   point. 
  

  

  