﻿284 
  -Mr. 
  G. 
  Lewis 
  on 
  new 
  Species 
  of 
  Histeridaa. 
  

  

  subtiliter 
  punctatis 
  ; 
  prosterno 
  ut 
  in 
  helluone 
  ; 
  mesosterno 
  sinuato, 
  

   stria 
  integra 
  ; 
  tibiis 
  anticis 
  3-dentatis, 
  posticis 
  multispinosis. 
  

   Long. 
  6 
  millim. 
  

  

  This 
  species 
  is 
  extremely 
  like 
  H. 
  helluo 
  , 
  Mars. 
  The 
  differ- 
  

   ences 
  are 
  : 
  the 
  head 
  is 
  broader, 
  the 
  lateral 
  punctures 
  of 
  the 
  

   thorax 
  are 
  absent, 
  the 
  fourth 
  elytral 
  stria 
  is 
  apical 
  and 
  very 
  

   short, 
  and 
  the 
  sutural 
  much 
  abbreviated 
  at 
  the 
  base, 
  but 
  very 
  

   clear, 
  and 
  it 
  is 
  curved 
  outwards 
  towards 
  the 
  apex. 
  Beneath, 
  

   the 
  mesosternum 
  is 
  feebly 
  emarginate 
  and 
  the 
  stria 
  is 
  nearly 
  

   straight 
  anteriorly. 
  In 
  H. 
  helluo 
  the 
  stria 
  follows 
  the 
  course 
  of 
  

   the 
  anterior 
  emargination. 
  The 
  anterior 
  tibia?, 
  also 
  are 
  tri- 
  

   dentate. 
  I 
  have 
  seen 
  the 
  tjpe 
  of 
  Hister 
  helluonides, 
  Mars., 
  

   and 
  it 
  differs 
  from 
  helluo 
  much 
  more 
  than 
  the 
  present 
  species. 
  

  

  Hah. 
  Abyssinia 
  {Raff 
  ray). 
  

  

  Hister 
  tenuistriatus, 
  n. 
  sp. 
  

  

  Ovalis, 
  parum 
  convexus, 
  niger, 
  nitidus 
  ; 
  fronte 
  longitudinaliter 
  im- 
  

   pressa 
  stria 
  valida 
  ; 
  pronoto 
  antice 
  utrinque 
  sinuato, 
  stria 
  interna 
  

   valida 
  integra, 
  externa 
  tenuissime 
  impressa, 
  basi 
  vix 
  abbreviata 
  ; 
  

   elytris 
  striis 
  l 
  a 
  -3 
  m 
  validis 
  integris, 
  4 
  a 
  dimidiata 
  vix 
  interrupta, 
  

   5 
  a 
  apicali 
  brevissima, 
  suturali 
  basi 
  late 
  abbreviata 
  ; 
  propygidio 
  

   parce 
  punctato, 
  pygidio 
  probe 
  Vxxi 
  ; 
  prosterno 
  vix 
  brevi 
  transversim 
  

   sulcato, 
  lobo 
  antico 
  impunctato 
  ; 
  mesosterno 
  haud 
  emarginato, 
  

   stria 
  integra, 
  sed 
  tenuiter 
  impressa. 
  

  

  Long. 
  6| 
  millim. 
  

  

  The 
  shape 
  of 
  the 
  thorax 
  behind 
  the 
  head 
  gives 
  an 
  outline 
  

   which 
  corresponds 
  with 
  the 
  outline 
  given 
  in 
  the 
  figure 
  of 
  

   Terapus, 
  Mars 
  , 
  Mon. 
  1862, 
  t. 
  7, 
  no. 
  45, 
  f. 
  1. 
  The 
  outer 
  

   thoracic 
  stria 
  is 
  very 
  fine, 
  close 
  to 
  the 
  marginal 
  edge, 
  and 
  it 
  

   terminates 
  just 
  before 
  the 
  base, 
  and 
  between 
  it 
  and 
  the 
  inner 
  

   stria 
  there 
  is 
  a 
  broad 
  interstice. 
  To 
  be 
  placed 
  in 
  the 
  catalogue 
  

   near 
  Hister 
  singalanus, 
  Mars. 
  

  

  Hab. 
  Borneo 
  {Doherty). 
  Two 
  examples. 
  

  

  Stictostix, 
  Marseul, 
  Ann. 
  Soc. 
  Belg. 
  xiii. 
  1870, 
  p. 
  92. 
  

  

  Triballus 
  californicus, 
  Horn, 
  may 
  be 
  placed 
  in 
  this 
  genus 
  

   provisionally, 
  for 
  although 
  its 
  outline 
  is 
  very 
  different 
  from 
  

   that 
  of 
  S. 
  parra, 
  Mars., 
  its 
  general 
  characters 
  seem 
  to 
  be 
  the 
  

   same. 
  

  

  Carcinops 
  currax, 
  Marseul, 
  1870= 
  C. 
  geminata, 
  Leconte, 
  

   1859. 
  Specimens 
  are 
  extant 
  in 
  collections 
  which 
  have 
  been 
  

   labelled 
  " 
  Oran, 
  Algeria," 
  and 
  this 
  has 
  no 
  doubt 
  misled 
  

   Marseul. 
  This 
  species, 
  with 
  C. 
  radula, 
  Mars., 
  Garbigliettii 
  } 
  

   Mars., 
  conjuncta, 
  Say, 
  multistriatus, 
  Lewis, 
  and 
  punctinotus, 
  

   Lewis, 
  belong 
  to 
  the 
  genus 
  Xestijpyge, 
  Mars. 
  Mon. 
  1862, 
  p. 
  6. 
  

  

  