﻿Coleoptera 
  of 
  Japan. 
  321 
  

  

  Antennae 
  extremely 
  short, 
  joints 
  2 
  — 
  8 
  slender, 
  6 
  — 
  8 
  quite 
  minute 
  ; 
  

   club 
  compact, 
  three-jointed, 
  acuminate. 
  Head 
  destitute 
  of 
  rostral 
  

   prolongation, 
  grisescent. 
  Thorax 
  elongate, 
  parallel, 
  coloured 
  like 
  

   the 
  head, 
  not 
  variegate, 
  though 
  the 
  griseous 
  pubescence 
  does 
  not 
  

   cover 
  it 
  quite 
  uniformly. 
  Elytra 
  long 
  and 
  narrow, 
  grisescent, 
  

   bearing 
  numerous 
  small 
  indistinct 
  fuscous 
  black 
  spots, 
  and 
  before 
  

   the 
  extremity 
  a 
  broad 
  band 
  of 
  this 
  colour, 
  very 
  vaguely 
  limited 
  in 
  

   front, 
  more 
  sharply 
  behind. 
  Legs 
  rather 
  slender, 
  tibiae 
  obscurely 
  

   rufescent. 
  

  

  Nishi. 
  A 
  single 
  specimen/probabJy 
  of 
  the 
  female 
  sex, 
  

   Caccorhinus, 
  nov. 
  gen. 
  

  

  Rostrum 
  brevissimum, 
  anterius 
  subattenuatum. 
  Antennae 
  

   breves, 
  clava 
  triarticulata 
  sat 
  elongata, 
  articulo 
  decimo 
  transverso 
  ; 
  

   oculi 
  fortius 
  granulati. 
  Submentum 
  brevissimum, 
  anterius 
  vix 
  

   emarginatum. 
  

  

  This 
  is 
  a 
  very 
  distinct 
  genus, 
  and 
  it 
  is 
  not 
  easy 
  to 
  

   determine 
  the 
  exact 
  position 
  it 
  should 
  occupy 
  in 
  Lacor- 
  

   daire's 
  system 
  of 
  the 
  Anthrihidce, 
  it 
  being 
  doubtful 
  

   whether 
  it 
  should 
  be 
  placed 
  near 
  Basitropis 
  or 
  Brachy- 
  

   tarsus, 
  and 
  by 
  no 
  means 
  closely 
  allied 
  to 
  either. 
  The 
  

   condition 
  of 
  the 
  submentum 
  — 
  unique, 
  so 
  far 
  as 
  I 
  know, 
  

   in 
  the 
  family 
  — 
  renders 
  it 
  isolated. 
  The 
  rostrum 
  is 
  

   excessively 
  short, 
  but 
  on 
  the 
  under 
  side 
  is 
  divided 
  from 
  

   the 
  head 
  by 
  a 
  very 
  deep 
  constriction 
  ; 
  the 
  antennae 
  are 
  

   inserted 
  at 
  the 
  sides 
  of 
  the 
  rostrum, 
  the 
  point 
  of 
  in- 
  

   sertion 
  is 
  covered 
  in 
  front, 
  the 
  scrobes 
  are 
  grooves 
  

   extending 
  directly 
  downwards 
  ; 
  the 
  whole 
  of 
  the 
  basal 
  

   joint 
  of 
  the 
  antennae 
  is, 
  however, 
  exposed. 
  The 
  eyes 
  

   are 
  coarsely 
  facetted, 
  and 
  very 
  large. 
  The 
  submentum 
  

   appears 
  to 
  be 
  quite 
  truncate, 
  but 
  a 
  careful 
  examination 
  

   shows 
  that 
  its 
  angles 
  are 
  slightly 
  prolonged 
  in 
  front. 
  

   The 
  thoracic 
  carina 
  is 
  quite 
  basal, 
  and 
  is 
  continued 
  at 
  

   the 
  sides 
  for 
  about 
  half 
  the 
  length 
  of 
  the 
  thorax. 
  The 
  

   front 
  coxae 
  are 
  nearly 
  contiguous, 
  the 
  middle 
  rather 
  

   widely 
  separated, 
  the 
  mesosternum 
  between 
  them 
  not 
  

   quite 
  perpendicular. 
  For 
  the 
  present 
  the 
  genus 
  will, 
  I 
  

   think, 
  be 
  best 
  located 
  between 
  Basitropis 
  and 
  Eugonus. 
  

  

  Caccorhinus 
  oculatus, 
  n. 
  sp. 
  

   Sat 
  elongatus, 
  subcylindricus, 
  prothorace 
  anterius 
  attenuatus 
  ; 
  

   niger 
  supra 
  griseo-tomentosus, 
  nigro-maculatus. 
  Long. 
  6| 
  — 
  

   9^ 
  mm. 
  

  

  