﻿Coleoptera 
  of 
  Jajmn. 
  323 
  

  

  Arceocerus 
  tarsalis, 
  n. 
  sp. 
  

  

  Brevis, 
  convexus, 
  nigricans, 
  antennis 
  pedibusque 
  rufis, 
  his 
  

   variegatis, 
  illis 
  clava 
  nigricante 
  ; 
  supra 
  in 
  thorace 
  elytrisque 
  

   setosnlis 
  variegatis, 
  ornatus. 
  Long. 
  3^ 
  mm. 
  

  

  Mas. 
  Tarsis 
  antevioribns 
  dilatatis. 
  

  

  This 
  is 
  closely 
  allied 
  to 
  A. 
  fasciculatus, 
  but 
  is 
  of 
  

   slightly 
  shorter 
  form, 
  more 
  prettily 
  variegated 
  above, 
  

   with 
  shorter 
  prothorax 
  and 
  club 
  of 
  the 
  antennae, 
  and 
  

   ■with 
  the 
  male 
  characters 
  different. 
  In 
  this 
  latter 
  sex 
  

   the 
  front 
  feet 
  are 
  notably 
  larger 
  than 
  they 
  are 
  in 
  the 
  

   female, 
  being 
  both 
  longer 
  and 
  broader 
  ; 
  and 
  in 
  this 
  sex 
  

   the 
  apex 
  of 
  the 
  pygidium 
  is 
  rounded 
  and 
  ciliate, 
  while 
  

   in 
  the 
  female 
  it 
  is 
  acuminate. 
  

  

  This 
  species 
  varies 
  much 
  in 
  colour 
  and 
  size 
  ; 
  some 
  

   specimens 
  are 
  nearly 
  black 
  and 
  very 
  little 
  variegate, 
  

   except 
  that 
  the 
  basal 
  parts 
  of 
  the 
  antennse 
  are 
  constantly 
  

   yellow. 
  

  

  A 
  fair 
  series 
  was 
  amassed, 
  made 
  up 
  from 
  several 
  

   localities 
  : 
  one 
  of 
  them, 
  a 
  female, 
  is 
  labelled 
  as 
  having 
  

   been 
  found 
  amongst 
  peas 
  at 
  Kobe 
  in 
  August, 
  1871. 
  

   Kiga, 
  Miyanoshita, 
  Nikko, 
  Kashiwagi, 
  Chiuzenji, 
  Awo- 
  

   mori, 
  22nd 
  June, 
  1881, 
  23rd 
  August, 
  1881. 
  Kiga, 
  

   Miyanoshita, 
  Fuji, 
  Nikko, 
  Awomori. 
  

  

  Choragus 
  compactus, 
  n. 
  sp. 
  

  

  Niger, 
  densissime 
  punctatns, 
  opacus, 
  antennis 
  elongatis, 
  articulis 
  

   basalibus 
  rufis 
  pedibus 
  piceis 
  ; 
  elytris 
  seriatim 
  fortiter, 
  regulariter 
  

   punctatis. 
  Long. 
  3^ 
  mm. 
  

  

  Antennse 
  with 
  the 
  basal 
  joint 
  elongate 
  and 
  much 
  curved, 
  second 
  

   about 
  as 
  long 
  ; 
  chib 
  elongate, 
  very 
  loosely 
  articulated 
  and 
  fragile. 
  

   Head 
  broad, 
  eyes 
  large. 
  Thorax 
  very 
  densely 
  finely 
  rugulose, 
  

   blackish, 
  somewhat 
  piceous 
  in 
  front, 
  and 
  with 
  an 
  excessively 
  

   minute 
  pubescence 
  about 
  the 
  sides, 
  giving 
  it 
  a 
  silvery 
  reflection 
  

   in 
  certain 
  lights 
  ; 
  the 
  hind 
  angles 
  prolonged 
  behind 
  beneath 
  the 
  

   shoulders 
  of 
  the 
  elytra 
  : 
  these 
  latter 
  with 
  regular 
  series 
  of 
  very 
  

   coarse 
  punctures, 
  the 
  interstices 
  rather 
  convex, 
  very 
  densely 
  

   punctate. 
  Legs 
  stout. 
  

  

  This 
  fine 
  Choragus 
  has, 
  like 
  the 
  following 
  species, 
  the 
  

   appearance 
  of 
  a 
  small 
  Cryptocephalus. 
  Three 
  examples 
  

   were 
  found 
  at 
  Nikko. 
  

  

  TEANS. 
  ENT. 
  SOC. 
  LOND. 
  1891. 
  — 
  PART 
  II, 
  (jUNE.) 
  Z 
  

  

  