﻿Coleoptera 
  of 
  Japan. 
  295 
  

  

  Antennae 
  inserted 
  just 
  behind 
  the 
  middle 
  of 
  the 
  rostrum, 
  first 
  

   joint 
  about 
  three 
  times 
  as 
  long 
  as 
  the 
  second. 
  Head 
  long 
  and 
  

   narrow 
  ; 
  eyes 
  not 
  prominent, 
  remote 
  from 
  the 
  thorax. 
  Thorax 
  

   small, 
  slender, 
  not 
  greatly 
  narrowed 
  in 
  front, 
  coarsely 
  punctate, 
  

   with 
  an 
  elongate 
  channel 
  on 
  the 
  middle. 
  Elytra 
  moderately 
  

   deeply 
  sulcate 
  ; 
  interstices 
  quite 
  flat, 
  dull. 
  

  

  Shimonosiwa, 
  July 
  31st, 
  1881. 
  One 
  specimen. 
  

  

  This 
  very 
  distinct 
  species 
  reminds 
  one 
  of 
  A. 
  curvi- 
  

   rostre, 
  but 
  the 
  Japanese 
  insect 
  is 
  really 
  very 
  different, 
  

   the 
  rostrum 
  and 
  head 
  being 
  more 
  slender, 
  the 
  thorax 
  

   smaller, 
  differently 
  sculptured, 
  and 
  not 
  constricted 
  behind 
  

   the 
  front 
  margin, 
  

  

  Apion 
  hulbinasum, 
  n. 
  sp. 
  

  

  Nigerrimum, 
  parcissime 
  setosum, 
  sat 
  nitidum, 
  elytris 
  profunde 
  

   sulcatis 
  ; 
  rostro 
  apicem 
  versus 
  dilatato, 
  subtus 
  membranaceo. 
  

   Long, 
  absque 
  rostro 
  2^ 
  mm. 
  

  

  Of 
  this 
  most 
  remarkable 
  Apion 
  only 
  one 
  example 
  was 
  procured, 
  

   and 
  I 
  am 
  not 
  able 
  to 
  speak 
  as 
  to 
  its 
  sex 
  : 
  it 
  has 
  the 
  apical 
  portion 
  

   of 
  the 
  rostrum 
  thickened 
  and 
  inflated, 
  while 
  beneath 
  the 
  surface 
  

   is 
  hollow, 
  and 
  the 
  chitinous 
  integument 
  is 
  absent, 
  the 
  hollow 
  being 
  

   closed 
  by 
  a 
  membrane. 
  Except 
  for 
  this 
  unprecedented 
  structure 
  

   of 
  the 
  rostrum 
  the 
  insect 
  has 
  nothing 
  peculiar. 
  The 
  rostrum 
  is 
  

   about 
  as 
  long 
  as 
  the 
  head 
  and 
  thorax, 
  punctulate 
  on 
  the 
  apical 
  part, 
  

   dull 
  and 
  impunctate 
  on 
  the 
  basal 
  part 
  ; 
  the 
  eyes 
  are 
  widely 
  sepa- 
  

   rated, 
  the 
  surface 
  between 
  them 
  obsoletely 
  striate 
  : 
  the 
  antennae 
  

   are 
  inserted 
  abotit 
  one-fourth 
  of 
  the 
  length 
  in 
  front 
  of 
  the 
  eye. 
  

   The 
  thorax 
  is 
  rather 
  small, 
  narrowed 
  in 
  front, 
  a 
  little 
  rounded 
  at 
  

   the 
  sides, 
  coarsely 
  punctate, 
  with 
  a 
  fine 
  short 
  channel 
  in 
  front 
  of 
  

   the 
  scutellum. 
  Elytra 
  with 
  rather 
  broad 
  deep 
  grooves, 
  which 
  are 
  

   very 
  indistinctly 
  punctate 
  ; 
  the 
  interstices 
  are 
  slightly 
  nitid, 
  almost 
  

   destitute 
  of 
  pubescence. 
  

  

  Sapporo 
  ; 
  one 
  example. 
  

  

  Apion 
  sulcirostre, 
  n. 
  sp. 
  

  

  Nigrum, 
  elytris 
  sanguineis, 
  circa 
  scutellum 
  margineque 
  apicali 
  

   nigricantibus, 
  antennarum 
  basi 
  piceo-rufo, 
  pedibus 
  nigro-piceis 
  ; 
  

   rostro 
  crassiusculo, 
  anterius 
  in 
  medio 
  canaliculate. 
  Long, 
  absque 
  

   rostro 
  2^ 
  mm. 
  

  

  Eostrum 
  short 
  and 
  stout, 
  but 
  little 
  curved, 
  nearly 
  straight, 
  quite 
  

   dull, 
  punctate, 
  with 
  a 
  channel 
  extending 
  from 
  the 
  insertion 
  of 
  the 
  

   antennse 
  to 
  near 
  the 
  apex 
  ; 
  antennae 
  inserted 
  a 
  little 
  behind 
  the 
  

   middle, 
  rather 
  short. 
  Thorax 
  rather 
  small, 
  subcorneal, 
  slightly 
  

  

  