﻿CoUo'ptera 
  of 
  Japan. 
  315 
  

  

  approximate 
  thereto 
  ; 
  the 
  hind 
  angles 
  acute 
  and 
  

   near 
  to 
  the 
  elytra. 
  Species 
  24 
  — 
  28. 
  

  

  24. 
  Trojjideres 
  pectoralis, 
  n. 
  sp. 
  

  

  Niger, 
  supra 
  griseo-subvariegatus, 
  rostro 
  albido-tomentoso 
  ; 
  

   antennis 
  pedibusque 
  testaceis, 
  illis 
  gracilibus 
  elongatis, 
  his 
  femori- 
  

   bus 
  fuscis 
  ; 
  prottioracis 
  carina 
  bisinuata, 
  ab 
  elytris 
  parum 
  remota. 
  

   Long, 
  rostro 
  siibporrecto 
  3.|- 
  mm. 
  

  

  Antennae 
  yellow, 
  rather 
  elongate 
  and 
  slender, 
  with 
  long 
  slender 
  

   club 
  of 
  three 
  subequal 
  joints. 
  Eostrum 
  broad 
  and 
  short, 
  clothed 
  

   with 
  white 
  silky 
  tomentuni, 
  this 
  colour 
  extending 
  upwards 
  between 
  

   the 
  eyes, 
  these 
  latter 
  separated 
  in 
  front 
  by 
  about 
  one-half 
  the 
  

   width 
  of 
  the 
  rostrum. 
  Thorax 
  rounded 
  at 
  the 
  sides 
  and 
  narrowed 
  

   in 
  front, 
  dull 
  fiiscous 
  black, 
  ashen 
  white 
  about 
  the 
  sides, 
  the 
  carina 
  

   forming 
  in 
  the 
  middle 
  a 
  gentle 
  curve, 
  not 
  at 
  all 
  angulate, 
  sinuate 
  on 
  

   each 
  side, 
  the 
  angles 
  free 
  and 
  slightly 
  projecting. 
  Elytra 
  fuscous 
  

   black, 
  much 
  variegated 
  in 
  an 
  irregular 
  manner 
  with 
  griseous 
  pube- 
  

   scence. 
  Tibise 
  and 
  tarsi 
  yellow. 
  Under 
  side 
  uniformly 
  covered 
  

   with 
  pallid 
  pubescence 
  ; 
  the 
  middle 
  coxse 
  moderately 
  distant, 
  the 
  

   mesosternum 
  produced 
  between 
  them 
  as 
  far 
  as 
  the 
  middle 
  of 
  the 
  

   metasternum. 
  

  

  Kashiwagi, 
  22nd 
  June, 
  1881 
  ; 
  Kurigahara, 
  5th 
  August, 
  

   1881 
  ; 
  Nikko, 
  Junsai. 
  One 
  specimen 
  from 
  each 
  locality. 
  

  

  This 
  species 
  can 
  be 
  readily 
  distinguished 
  by 
  the 
  

   peculiar 
  prolongation 
  backwards 
  of 
  the 
  mesosternal 
  

   process 
  ; 
  on 
  the 
  upper 
  side 
  the 
  readiest 
  means 
  of 
  identi- 
  

   fying 
  it 
  will 
  be 
  found 
  in 
  the 
  white 
  pubescence 
  of 
  the 
  

   front 
  of 
  the 
  head 
  and 
  rostrum. 
  

  

  25. 
  Troinderes 
  tnmcatus, 
  n. 
  sp. 
  

  

  Nigro-fiiscus, 
  supra 
  parum 
  distincte 
  variegatus, 
  rostro 
  parcius 
  

   griseo-tomentoso, 
  antennis 
  pedibusque 
  testaceis, 
  illis 
  gracilibus 
  sat 
  

   elongatis, 
  his 
  femoribus 
  fuscis 
  ; 
  protlioracis 
  carina 
  bisinuata, 
  ab 
  

   elytris 
  parum 
  remota. 
  Long. 
  2^ 
  — 
  3 
  mm. 
  

  

  This 
  obscure 
  insect 
  is 
  excessively 
  similar 
  to 
  T. 
  pec- 
  

   toralis, 
  but 
  may 
  be 
  distinguished 
  on 
  the 
  upper 
  side 
  by 
  

   the 
  front 
  of 
  the 
  head 
  and 
  rostrum 
  not 
  being 
  white 
  ; 
  

   while 
  beneath 
  it 
  differs 
  by 
  the 
  mesosternal 
  process 
  being 
  

   truncate 
  just 
  in 
  front 
  of 
  the 
  middle 
  coxse, 
  instead 
  of 
  

   being 
  prolonged 
  between 
  them. 
  

  

  I 
  have 
  both 
  sexes 
  of 
  T. 
  truncatus 
  before 
  me 
  ; 
  the 
  male 
  

  

  