﻿320 
  Dr. 
  Sharp 
  on 
  the 
  Rhynchophorous 
  

  

  thought 
  them 
  to 
  be 
  of 
  the 
  same 
  species. 
  This, 
  however, 
  

   is, 
  I 
  believe, 
  not 
  the 
  case 
  ; 
  the 
  club 
  of 
  the 
  antennae 
  is 
  

   comparatively 
  short 
  and 
  broad 
  in 
  the 
  male, 
  the 
  terminal 
  

   joint 
  not 
  being 
  elongate 
  and 
  bisinuate, 
  as 
  it 
  is 
  in 
  P. 
  

   gihbosus. 
  In 
  the 
  female 
  of 
  P. 
  mimes 
  the 
  club 
  is 
  shorter, 
  

   and 
  the 
  joints 
  are 
  bilaterally 
  symmetrical, 
  whereas 
  in 
  

   that 
  sex 
  of 
  P. 
  gihhosus 
  the 
  dilatation 
  of 
  the 
  club 
  joints 
  is 
  

   greater 
  on 
  the 
  inner 
  than 
  it 
  is 
  on 
  the 
  outer 
  side. 
  

  

  This 
  species 
  also 
  was 
  found 
  during 
  the 
  first 
  visit 
  of 
  

   Mr. 
  Lewis 
  to 
  Japan 
  in 
  1869 
  near 
  Nagasaki. 
  

  

  Basitropis 
  dispar, 
  n. 
  sp. 
  

  

  Elongatus, 
  niger, 
  subcylindricus, 
  griseo-marmoratus, 
  antennarum 
  

   articulo 
  ultimo 
  ferrugineo 
  ; 
  protliorace 
  parce 
  punctato. 
  Long, 
  

   rostro 
  porrecto 
  11 
  — 
  12 
  mm. 
  

  

  Mas. 
  Aiitennis 
  crassis, 
  artieulis 
  4o 
  — 
  8m 
  gradatim 
  crassioribus. 
  

  

  Fem. 
  Antennis 
  clava 
  quadriarticulata. 
  

  

  Eostrum 
  very 
  short, 
  canaliculate 
  on 
  the 
  middle 
  ; 
  vertex 
  sparingly 
  

   punctate. 
  Thorax 
  elongate, 
  nearly 
  parallel-sided, 
  except 
  in 
  front, 
  

   where 
  it 
  is 
  rather 
  abruptly 
  constricted, 
  the 
  surface 
  much 
  variegated 
  

   by 
  it-regular 
  olive-grey 
  patches, 
  and 
  bearing 
  numerous 
  rather 
  large 
  

   shallow 
  punctures. 
  Legs 
  stout, 
  tibise 
  broadly 
  grey 
  in 
  the 
  middle. 
  

   In 
  the 
  female 
  the 
  eighth 
  joint 
  of 
  the 
  antenna 
  is 
  so 
  much 
  broader 
  

   than 
  the 
  others 
  that 
  it 
  may 
  be 
  considered 
  to 
  form 
  part 
  of 
  the 
  club. 
  

   In 
  the 
  male 
  the 
  joints 
  are 
  thickened 
  from 
  the 
  fourth 
  outwards, 
  so 
  

   that 
  it 
  cannot 
  be 
  said 
  where 
  the 
  club 
  commences 
  ; 
  each 
  of 
  the 
  

   broader 
  joints 
  bears 
  some 
  dark 
  pubescence 
  on 
  the 
  anterior 
  part 
  of 
  

   the 
  lower 
  surface 
  ; 
  the 
  third 
  and 
  fourth 
  joints 
  are 
  quite 
  short, 
  the 
  

   latter 
  slightly 
  the 
  longer. 
  In 
  each 
  sex 
  the 
  penultimate 
  two 
  joints 
  

   are 
  transverse, 
  the 
  terminal 
  joint 
  is 
  also 
  short, 
  and 
  is 
  paler 
  in 
  

   colour 
  than 
  those 
  preceding 
  it. 
  

  

  Nikko 
  ; 
  a 
  small 
  series 
  found 
  in 
  the 
  month 
  of 
  June. 
  

  

  The 
  genus 
  Gynandrocerus 
  of 
  Lacordaire 
  can 
  scarcely 
  

   be 
  maintained 
  as 
  distinct 
  from 
  Basitropis, 
  as 
  it 
  appears 
  

   to 
  rest 
  solely 
  on 
  a 
  difference 
  in 
  the 
  antennae 
  of 
  the 
  sexes. 
  

   B. 
  dispar- 
  belongs 
  by 
  this 
  character 
  strictly 
  neither 
  to 
  

   Basitropis 
  nor 
  Gynandrocerus. 
  

  

  Ozotomerus 
  japonicus, 
  n. 
  sp. 
  

  

  Elongatus, 
  angustus, 
  cylindricus, 
  niger, 
  griseo-subvariegatus, 
  

   elytris 
  post 
  medium 
  plaga, 
  magna, 
  indeterminata, 
  nigro-fusca. 
  

   Long. 
  1\ 
  mm. 
  

  

  