﻿334 
  Mr. 
  R. 
  I. 
  Pocock 
  on 
  some 
  

  

  dric, 
  very 
  densely 
  punctate. 
  Elytra 
  densely 
  and 
  coarsely 
  

   punctate, 
  along 
  the 
  suture 
  shorter 
  than 
  the 
  thorax, 
  at 
  the 
  

   sides 
  about 
  as 
  long 
  as 
  the 
  thorax. 
  Hind 
  body 
  slender, 
  

   elongate 
  and 
  cylindric, 
  almost 
  destitute 
  of 
  pubescence, 
  very 
  

   coarsely 
  punctate. 
  Male 
  with 
  a 
  rather 
  deep 
  notch 
  on 
  the 
  

   hind 
  margin 
  of 
  the 
  terminal 
  ventral 
  plate, 
  and 
  with 
  the 
  pre- 
  

   ceding 
  segment 
  slightly 
  depressed 
  along 
  the 
  middle 
  and 
  

   pubescent 
  on 
  each 
  side 
  of 
  the 
  depression. 
  

  

  Nikko, 
  Tokio, 
  Fukushima 
  ; 
  six 
  specimens. 
  

  

  This 
  is 
  allied 
  to 
  S. 
  currax 
  and 
  S. 
  sedatus, 
  but 
  can 
  be 
  

   readily 
  distinguished 
  from 
  the 
  latter 
  by 
  the 
  more 
  slender 
  

   form, 
  intense 
  black 
  colour, 
  and 
  by 
  the 
  almost 
  complete 
  

   absence 
  of 
  pubescence 
  on 
  the 
  hind 
  body. 
  S. 
  currax 
  has 
  a 
  

   differently 
  formed 
  head, 
  comparatively 
  obsolete 
  punctuation 
  

   on 
  the 
  hind 
  body, 
  and 
  a 
  remarkably 
  conspicuous 
  white 
  pubes- 
  

   cence 
  on 
  the 
  basal 
  segments 
  of 
  that 
  part. 
  

  

  Stenus 
  jlavidulus, 
  n. 
  sp. 
  (Sect. 
  II. 
  B, 
  Erichson.) 
  

  

  Elongatus, 
  augustulus, 
  rufo-testaceus 
  ; 
  capite 
  inter 
  oculos, 
  pectore 
  

  

  abdominisque 
  apice 
  nigris 
  ; 
  antennis, 
  palpis 
  pedibusque 
  flavis. 
  

   Long. 
  5-5 
  k 
  inillim. 
  

  

  Antennas 
  very 
  long. 
  Head 
  black, 
  red 
  in 
  front 
  of 
  the 
  

   antennae, 
  not 
  excavate 
  but 
  broadly 
  and 
  shallowly 
  bisulcate, 
  

   rather 
  sparingly 
  punctate. 
  Thorax 
  elongate, 
  subcylindric, 
  

   rather 
  coarsely 
  but 
  not 
  densely 
  punctate. 
  Elytra 
  as 
  long 
  as 
  

   the 
  thorax 
  and 
  punctate 
  like 
  it. 
  Hind 
  body 
  slender, 
  elongate, 
  

   very 
  scantily 
  pubescent, 
  the 
  basal 
  segments 
  sparingly 
  punc- 
  

   tate, 
  the 
  apical 
  almost 
  impunctate. 
  Male 
  with 
  a 
  large 
  angu- 
  

   lar 
  notch 
  on 
  the 
  last 
  ventral 
  plate. 
  

  

  Honjo, 
  in 
  Tokio, 
  under 
  rushes 
  with 
  Drypta 
  fulveola, 
  an 
  

   insect 
  of 
  somewhat 
  similar 
  colour 
  ; 
  in 
  late 
  autumn 
  and 
  early 
  

   spring 
  in 
  plenty. 
  

  

  This 
  species 
  is 
  very 
  distinct 
  on 
  account 
  of 
  its 
  colour. 
  The 
  

   only 
  species 
  I 
  am 
  acquainted 
  with 
  that 
  are 
  like 
  it 
  in 
  this 
  

   respect 
  inhabit 
  Ceylon. 
  

  

  [To 
  be 
  continued.] 
  

  

  XXXVIII. 
  — 
  Notes 
  on 
  some 
  Buthicke, 
  new 
  and 
  old. 
  By 
  R. 
  I. 
  

   Pocock, 
  of 
  the 
  British 
  (Natural-History) 
  Museum. 
  

  

  [Plate 
  XV.] 
  

  

  The 
  conclusions 
  set 
  forth 
  in 
  this 
  paper 
  as 
  to 
  the 
  validity 
  of 
  

   certain 
  doubtful 
  species 
  of 
  Buthus 
  and 
  the 
  descriptions 
  of 
  the 
  

  

  