﻿262 
  Dr. 
  D. 
  Sharp 
  on 
  

  

  This 
  insect 
  is 
  allied 
  to 
  the 
  European 
  8. 
  Erichsonii, 
  from 
  

   which, 
  however, 
  it 
  is 
  abundantly 
  distinct. 
  Although 
  no 
  

   males 
  have 
  been 
  found, 
  it 
  is 
  so 
  different 
  from 
  the 
  other 
  Japan- 
  

   ese 
  species 
  that 
  no 
  difficulty 
  will 
  be 
  found 
  in 
  identifying 
  it. 
  

   It 
  is 
  rather 
  longer 
  than 
  S. 
  Erichsonii 
  and 
  less 
  depressed 
  ; 
  it 
  

   is 
  more 
  elongate, 
  the 
  head 
  especially 
  being 
  more 
  elongate 
  and 
  

   narrower 
  in 
  front. 
  

  

  Yokohama, 
  Niigala, 
  and 
  Nikko 
  ; 
  four 
  examples. 
  

  

  PANSCOP^US, 
  nov. 
  gen. 
  

  

  Caput 
  collo 
  angustissimo. 
  Labrum 
  medio 
  excisione 
  parva 
  utrinque 
  

   dentieulo 
  parvo 
  instructa. 
  Prothorax 
  pentagonalis 
  : 
  prosternum 
  

   processu 
  supracoxali 
  abbreviato. 
  Tarsi 
  graciles, 
  anteriores 
  haud 
  

   dilatati, 
  postcriores 
  filiform.es, 
  articulo 
  basali 
  quam 
  sccundo 
  duplo 
  

   longiore. 
  

  

  This 
  genus 
  agrees 
  with 
  Scopcvus 
  in 
  the 
  very 
  slender 
  neck, 
  

   but 
  in 
  other 
  respects 
  it 
  is 
  nearer 
  to 
  Liihocharis, 
  next 
  which 
  it 
  

   should 
  be 
  placed, 
  though 
  it 
  is 
  well 
  separated 
  by 
  the 
  form 
  of 
  

   the 
  head 
  and 
  thorax. 
  On 
  each 
  mandible 
  one 
  tooth 
  only 
  can 
  

   be 
  seen, 
  but 
  the 
  basal 
  portion 
  of 
  the 
  mandible 
  is 
  incrassate 
  

   inwardly 
  and 
  slightly 
  notched, 
  so 
  as 
  to 
  represent 
  on 
  the 
  left 
  

   side 
  two, 
  on 
  the 
  right 
  three, 
  rudimentary 
  teeth. 
  The 
  slender 
  

   and 
  linear 
  hind 
  tarsi 
  are 
  quite 
  different 
  from 
  the 
  feet 
  of 
  

   Scopceus 
  and 
  agree 
  better 
  with 
  Lithocharis. 
  

  

  Panscopccus 
  litJtocharoides. 
  

  

  Scopceus 
  Kthocharoides, 
  Sharp, 
  Trans. 
  Ent. 
  Soc. 
  Loud. 
  1874, 
  p. 
  63. 
  

  

  This 
  species 
  has 
  been 
  found 
  in 
  several 
  localities 
  on 
  the 
  

   main 
  island 
  ; 
  Biwa 
  Lake 
  and 
  Nikko. 
  

  

  Charichirus, 
  nov. 
  gen. 
  

  

  Labrum 
  magnum, 
  medio 
  fortiter 
  dcntatum, 
  utrinque 
  subsinuatum. 
  

   Caput 
  collo 
  angusto 
  ; 
  prosternum 
  processu 
  supracoxali 
  abbrevi- 
  

   ato. 
  Tarsi 
  omnes 
  graciles, 
  anteriores 
  simplices, 
  posteriores 
  arti- 
  

   culis 
  quatuor 
  basalibus 
  longitudine 
  gradatim 
  decrescentibus, 
  

   articulo 
  secundo 
  elongato, 
  quam 
  quarto 
  plus 
  duplo 
  longiore. 
  

  

  This 
  insect 
  has 
  more 
  the 
  appearance 
  of 
  Medon 
  than 
  of 
  

   Lithocharis, 
  but 
  cannot 
  be 
  placed 
  in 
  the 
  former 
  genus 
  on 
  

   account 
  of 
  the 
  abbreviated 
  prosternal 
  process 
  ; 
  from 
  Litho- 
  

   charis 
  it 
  is 
  well 
  distinguished 
  by 
  the 
  structure 
  of 
  the 
  labrum, 
  

   which 
  has 
  a 
  large 
  tooth 
  in 
  the 
  middle 
  ; 
  the 
  neck, 
  too, 
  is 
  a 
  

   little 
  broader 
  and 
  the 
  second 
  joint 
  of 
  the 
  hind 
  foot 
  much 
  

  

  