﻿326 
  Dr. 
  Sharp 
  on 
  the 
  Rhynchophovous 
  

  

  of 
  the 
  elytra. 
  The 
  punctures 
  forming 
  the 
  series 
  on 
  the 
  

   wing-cases 
  are 
  large 
  and 
  distinct, 
  and 
  the 
  minute 
  pub- 
  

   escence 
  is 
  quite 
  evident. 
  In 
  the 
  male 
  the 
  ventral 
  seg- 
  

   ments 
  are 
  short, 
  and 
  the 
  basal 
  three 
  or 
  four 
  are 
  broadly 
  

   impressed 
  on 
  the 
  middle. 
  

  

  Nikko; 
  Kurigahara, 
  6th 
  August, 
  1881. 
  Four 
  speci- 
  

   mens. 
  

  

  Deropygus, 
  n. 
  gen. 
  

   Inter 
  ArcBOcerum 
  et 
  Choragum 
  locandus 
  ; 
  discedit 
  antennis 
  

   inter 
  sese 
  parum 
  distantibus, 
  coxisque 
  intermediis 
  approximatis. 
  

  

  There 
  can 
  be 
  no 
  question 
  as 
  to 
  the 
  position 
  of 
  this 
  

   genus, 
  for 
  its 
  characters 
  are 
  almost 
  those 
  of 
  Choragus, 
  

   except 
  as 
  to 
  the 
  two 
  points 
  mentioned 
  above. 
  The 
  eyes 
  

   are 
  round 
  and 
  convex, 
  however, 
  and 
  formed 
  more 
  like 
  

   those 
  of 
  ArcEocerus 
  ; 
  the 
  antennge 
  are 
  slender, 
  with 
  large 
  

   excessively 
  fragile 
  club, 
  and 
  the 
  inner 
  margin 
  of 
  their 
  

   cavities 
  of 
  insertion 
  extends 
  considerably 
  farther 
  inwards 
  

   than 
  the 
  inner 
  edge 
  of 
  the 
  eye 
  does. 
  The 
  thoracic 
  

   carina 
  is 
  basal, 
  and 
  is 
  continued 
  along 
  the 
  sides 
  for 
  

   about 
  half 
  of 
  the 
  length. 
  The 
  mesosternum 
  forms 
  a 
  

   small 
  subrhomboidal 
  piece 
  in 
  front 
  of 
  the 
  middle 
  coxae, 
  

   and 
  is 
  connected 
  with 
  the 
  metasternal 
  process 
  only 
  by 
  a 
  

   narrow 
  isthmus. 
  The 
  pygidium 
  is 
  remarkably 
  slender, 
  

   and 
  projects 
  somewhat 
  downwards 
  in 
  a 
  beak-like 
  manner. 
  

  

  Deropygus 
  histrio. 
  

  

  Fusco-niger, 
  subopacus, 
  subtiliter 
  tonientosus, 
  superue 
  albido- 
  

   picturatus 
  antennarmn 
  basi 
  pedibusque 
  testaceis. 
  Long. 
  3 
  mm. 
  

  

  Antennae 
  with 
  an 
  elongate 
  setose 
  club, 
  which 
  is 
  dark 
  in 
  colour, 
  

   formed 
  by 
  three 
  excessively 
  slightly 
  articulated 
  joints, 
  the 
  first 
  of 
  

   which 
  is 
  a 
  little 
  the 
  larger. 
  Head 
  and 
  rostrum 
  inflexed. 
  Thorax 
  

   rather 
  short, 
  extremely 
  densely 
  and 
  indistinctly 
  sculptiu'ed, 
  quite 
  

   dull, 
  dark 
  in 
  colour, 
  with 
  three 
  white 
  spots 
  along 
  the 
  front, 
  three 
  

   along 
  the 
  base, 
  and 
  one 
  on 
  each 
  side. 
  There 
  are 
  series 
  of 
  rather 
  

   large 
  punctures 
  on 
  the 
  elytra 
  ; 
  these, 
  however, 
  are 
  rendered 
  

   indistinct 
  by 
  the 
  clothing 
  : 
  this 
  is 
  very 
  fine, 
  dark 
  in 
  colour, 
  but 
  

   variegated 
  by 
  numerous 
  white 
  spots. 
  The 
  front 
  legs 
  are 
  sordid 
  

   testaceous, 
  the 
  hind 
  pair 
  are 
  more 
  dusky 
  in 
  colour. 
  

  

  Ichiuchi, 
  1st 
  May, 
  1881. 
  Two 
  specimens. 
  

  

  