﻿116 
  Dr. 
  D. 
  Sharp 
  on 
  

  

  in 
  each 
  sex, 
  and 
  the 
  front 
  tibiae 
  are 
  much 
  dilated 
  and 
  are 
  

   flattened, 
  so 
  as 
  to 
  present 
  an 
  edge 
  externally 
  ; 
  the 
  meso- 
  

   sternum 
  is 
  divided 
  by 
  a 
  curved 
  line, 
  which 
  is 
  armed 
  with 
  

   numerous 
  long 
  erect 
  seta? 
  ; 
  the 
  middle 
  coxse 
  are 
  distinctly 
  

   but 
  not 
  widely 
  separated, 
  and 
  the 
  metasternum 
  is 
  so 
  short 
  

   that 
  they 
  are 
  separated 
  only 
  by 
  a 
  very 
  small 
  space 
  from 
  the 
  

   hind 
  coxas. 
  The 
  legs 
  are 
  elongate, 
  the 
  basal 
  joint 
  of 
  the 
  hind 
  

   feet 
  long, 
  equal 
  to 
  the 
  following 
  three 
  joints 
  together 
  and 
  longer 
  

   than 
  the 
  terminal 
  joint. 
  

  

  The 
  genus 
  differs 
  from 
  Thinopinus 
  by 
  the 
  suture 
  of 
  the 
  

   wing-cases 
  being 
  straight 
  and 
  from 
  Hadrotes 
  by 
  the 
  more 
  

   slender 
  limbs 
  and 
  palpi 
  ; 
  also 
  by 
  the 
  different 
  form 
  of 
  the 
  front 
  

   tibia?, 
  which 
  in 
  Hadrotes 
  are 
  not 
  flattened 
  and 
  are 
  muricate 
  

   on 
  their 
  posterior 
  aspect. 
  

  

  Hadropinus 
  fossor 
  , 
  n. 
  sp. 
  

  

  Niger 
  ; 
  abdomine 
  piceo, 
  elytris 
  esterne 
  sordide 
  testaceis 
  ; 
  antennis 
  

   pedibusque 
  testaceis 
  ; 
  elytris 
  thorace 
  brevioribus, 
  prope 
  suturam 
  

   nudis, 
  versus 
  latera 
  pubescentibus. 
  

  

  Long. 
  23 
  rnillim. 
  

  

  Head 
  broad 
  and 
  short, 
  narrowed 
  in 
  front, 
  neck 
  abrupt 
  but 
  

   thick, 
  impunctate, 
  eyes 
  placed 
  largely 
  on 
  the 
  upper 
  surface. 
  

   Thorax 
  impunctate, 
  transversely 
  convex, 
  narrowed 
  behind, 
  

   not 
  so 
  long 
  as 
  broad. 
  Elytra 
  dark 
  sordid 
  yellow 
  externally, 
  

   near 
  the 
  suture 
  dark, 
  this 
  latter 
  part 
  impunctate 
  and 
  bare, 
  the 
  

   paler 
  part 
  obscurely 
  punctate 
  and 
  bearing 
  a 
  pallid, 
  depressed, 
  

   coarse 
  pubescence. 
  Hind 
  body 
  thick, 
  dull, 
  rather 
  coarsely 
  

   punctate, 
  and 
  with 
  a 
  short, 
  scanty, 
  flavescent 
  pubescence. 
  

  

  Hakodate, 
  three 
  examples. 
  This 
  insect 
  makes 
  burrows 
  in 
  

   the 
  sand 
  under 
  the 
  seaweed, 
  like 
  Broscus 
  and 
  Scarites. 
  

  

  LiUSUS, 
  nov. 
  gen. 
  

  

  Ligula 
  integra, 
  haud 
  lata; 
  prothorax 
  lineis 
  marginalibus 
  usque 
  

   ad 
  angulos 
  anteriores 
  productis, 
  linea 
  superiore 
  anterius 
  obsoleta. 
  

   Metasternum 
  elongatum. 
  

  

  This 
  insect, 
  though 
  allied 
  in 
  respect 
  of 
  its 
  structural 
  cha- 
  

   racters 
  to 
  Hadrotes, 
  next 
  which 
  it 
  should 
  be 
  placed, 
  must 
  be 
  

   treated 
  as 
  a 
  distinct 
  genus 
  ; 
  besides 
  differing 
  by 
  the 
  elongate 
  

   metasternum, 
  it 
  departs 
  too 
  much 
  in 
  the 
  details 
  of 
  its 
  struc- 
  

   ture 
  to 
  be 
  associated 
  with 
  the 
  North-American 
  Hadrotes. 
  

   The 
  superior 
  lateral 
  line 
  of 
  the 
  thorax, 
  though 
  quite 
  obsolete 
  

   in 
  front, 
  is 
  readily 
  traced, 
  and 
  leaves 
  a 
  broad 
  side-piece, 
  the 
  

   width 
  of 
  which 
  even 
  at 
  the 
  front 
  angles 
  is 
  considerable. 
  The 
  

  

  