﻿302 
  Dr. 
  Sharp 
  07i 
  the 
  RhynchopJiorous 
  

  

  Group 
  1. 
  Thoracic 
  carina 
  slightly 
  sinuous, 
  nearly 
  equi- 
  

   distant 
  from 
  elytra 
  for 
  all 
  its 
  width 
  : 
  eyes 
  placed 
  

   more 
  or 
  less 
  on 
  the 
  anterior 
  aspect 
  of 
  the 
  head. 
  

   Species 
  1 
  — 
  8. 
  

  

  1. 
  Tropideres 
  rugirostris, 
  n. 
  sp. 
  

  

  Niger, 
  ochraceo-variegatus, 
  rostro 
  lato, 
  piano, 
  anterius 
  fortius 
  

   dilatato, 
  rugose, 
  nigro, 
  medio 
  superne 
  ochraceo; 
  antennis 
  testaceis, 
  

   articulis 
  basalibus 
  clavaque 
  nigricantibus, 
  hac 
  in 
  mare 
  valde 
  elon- 
  

   gata, 
  lineari. 
  Long, 
  cumque 
  rostro 
  11 
  mm. 
  

  

  Eostrum 
  densely 
  rugose, 
  black, 
  dull; 
  eyes 
  but 
  little 
  separated, 
  

   each 
  margined 
  internally 
  with 
  an 
  oclii'aceous 
  line, 
  which 
  converges, 
  

   meeting 
  its 
  fellow 
  at 
  the 
  front 
  of 
  the 
  eyes, 
  and 
  so 
  forming 
  a 
  broad 
  

   line, 
  which 
  is 
  continued 
  a 
  little 
  forward 
  along 
  the 
  middle 
  of 
  the 
  

   rostrum. 
  Thorax 
  broad, 
  greatly 
  narrowed 
  in 
  front, 
  coarsely 
  

   rugose, 
  black, 
  with 
  a 
  transverse 
  impression 
  on 
  the 
  disc, 
  on 
  either 
  

   side 
  of 
  which 
  there 
  is 
  an 
  ochraceous 
  mark 
  ; 
  there 
  is 
  a 
  quadrate 
  

   pale 
  mark 
  in 
  fr-ont 
  of 
  the 
  scutellum, 
  and 
  a 
  few 
  minute 
  spots 
  ; 
  the 
  

   prsebasal 
  carina 
  is 
  nearly 
  straight, 
  is 
  bent 
  forwards 
  at 
  the 
  side, 
  

   forming 
  a 
  rounded 
  angle, 
  and 
  ceases 
  suddenly 
  about 
  the 
  middle, 
  so 
  

   as 
  to 
  leave 
  there 
  a 
  sort 
  of 
  denticular 
  prominence. 
  Elytra 
  black, 
  

   but 
  with 
  large 
  irregular 
  ochraceous 
  marks 
  that 
  cover 
  half 
  the 
  

   surface 
  ; 
  with 
  series 
  of 
  punctures 
  that 
  are 
  fine 
  near 
  the 
  suture, 
  

   coarser 
  towards 
  the 
  sides, 
  especially 
  in 
  the 
  middle. 
  Pygidium 
  

   ochraceous. 
  Legs 
  slender, 
  black 
  ; 
  femora 
  with 
  a 
  pale 
  mark 
  in 
  

   front, 
  tibifE 
  with 
  a 
  long 
  pallid 
  ring 
  near 
  the 
  base 
  ; 
  basal 
  joint 
  of 
  

   tarsi 
  elongate, 
  pallid, 
  but 
  black 
  at 
  the 
  tip. 
  Metasternum 
  with 
  a 
  

   large 
  pallid 
  spot 
  on 
  each 
  side 
  ; 
  ventral 
  segments 
  with 
  two 
  rows 
  of 
  

   spots. 
  In 
  the 
  male 
  the 
  antennae 
  are 
  slender, 
  about 
  8 
  mm. 
  long, 
  

   the 
  club 
  very 
  elongate, 
  scarcely 
  broader 
  than 
  the 
  preceding 
  joints. 
  

   In 
  the 
  female 
  the 
  intermediate 
  joints 
  of 
  the 
  antennae 
  are 
  darker 
  

   in 
  colour, 
  being 
  piceous 
  yellow, 
  and 
  the 
  club, 
  though 
  very 
  elongate, 
  

   is 
  not 
  so 
  slender 
  as 
  it 
  is 
  in 
  the 
  male. 
  

  

  Only 
  three 
  examples 
  of 
  this 
  remarkable 
  Tropideres 
  

   were 
  procured 
  ; 
  one 
  each 
  at 
  Nikko, 
  Chiuzenji, 
  and 
  

   Junsai, 
  in 
  June. 
  

  

  2. 
  Tropideres 
  roelofsi. 
  

  

  Litocerus 
  roelofsi, 
  Lewis, 
  Ann. 
  Nat. 
  Hist, 
  1879, 
  p. 
  465. 
  

  

  Although 
  there 
  is 
  very 
  little 
  to 
  distinguish 
  Litocerus 
  

   from 
  Tropideres, 
  this 
  elegant 
  insect 
  is 
  better 
  placed 
  in 
  

   the 
  latter 
  division. 
  It 
  appears 
  to 
  be 
  very 
  rare, 
  but 
  has 
  

  

  