﻿238 
  Mr. 
  G. 
  Lewis 
  on 
  

  

  lonoer 
  and 
  less 
  transverse 
  than 
  that 
  of 
  pnnctulatus^ 
  Fiilirs., 
  

   and 
  others 
  ; 
  the 
  prosternurn, 
  the 
  anterior 
  lol)e 
  is 
  markedly 
  

   marginate, 
  tlie 
  lateral 
  striai 
  are 
  almost 
  parallel^, 
  very 
  slightly 
  

   diverging- 
  anteriorly, 
  keel 
  and 
  lobe 
  rather 
  coarsely, 
  not 
  closely 
  

   punctate, 
  with 
  a 
  line 
  of 
  punctures 
  along 
  the 
  striae; 
  the 
  nieso- 
  

   sternum 
  is 
  also 
  markedly 
  marginate, 
  and 
  the 
  surface 
  and 
  that 
  

   of 
  the 
  metafeternum 
  sparingly 
  punctulate 
  ; 
  the 
  anterior 
  tibial 
  

   are 
  7-8-denticulate. 
  

  

  Tliis 
  species 
  is 
  narrower 
  (less 
  robust) 
  tlian 
  punctulatus, 
  

   Fahrs., 
  and 
  the 
  other 
  chief 
  distinguishing 
  characters 
  are 
  the 
  

   more 
  strongly 
  bordered 
  anterior 
  margin 
  of 
  the 
  prosternurn, 
  

   and 
  its 
  striai 
  are 
  more 
  parallel, 
  scarcely 
  diverging 
  anteriorly, 
  

   and 
  the 
  punctures 
  of 
  the 
  nieso- 
  and 
  metasterna 
  are 
  larger. 
  

  

  Hab. 
  Congo 
  State, 
  

  

  CoPTOSTicKNUS, 
  gen. 
  nov. 
  

  

  This 
  genus 
  is 
  founded 
  to 
  receive 
  a 
  single 
  species 
  from 
  

   Madagascar 
  which 
  superficially 
  somewhat 
  resembles 
  Mucro- 
  

   sternus, 
  but 
  the 
  body 
  is 
  less 
  depressed, 
  and 
  the 
  other 
  characters 
  

   which 
  will 
  not 
  peimit 
  its 
  inclusion 
  in 
  it 
  are 
  : 
  the 
  pygidium 
  

   is 
  convex, 
  the 
  prosternal 
  keel 
  is 
  wide 
  and 
  truncate 
  at 
  both 
  

   ends, 
  the 
  mesosteriium 
  is 
  very 
  broad 
  and 
  nearly 
  straight 
  (not 
  

   sinuous) 
  anteriorly, 
  the 
  anterior 
  tibiaj 
  are 
  outwardly 
  denti- 
  

   culate, 
  tarsal 
  groove 
  not 
  sinuous, 
  and 
  the 
  tarsi 
  are 
  pilose 
  

   beneath. 
  The 
  form 
  of 
  the 
  forehead 
  (without 
  striae) 
  and 
  the 
  

   form 
  of 
  the 
  thorax 
  are 
  very 
  siniilar 
  to 
  those 
  oi 
  Macrosternus 
  ; 
  

   the 
  dorsal 
  sutural 
  stria 
  is 
  bent 
  like 
  that 
  of 
  the 
  American 
  

   JTister 
  curvatus, 
  Er., 
  but 
  this 
  being 
  a 
  character 
  of 
  many 
  

   African 
  species 
  of 
  Uister, 
  it 
  cannot 
  be 
  considered 
  an 
  

   important 
  one. 
  

  

  Coptosternus 
  tarsalis, 
  sp. 
  n. 
  

  

  Ovatus, 
  depressiis, 
  niger, 
  nitidus 
  ; 
  fronts 
  leviter 
  impressa 
  baud 
  

   striata; 
  pronoto 
  lateribus 
  punctulato, 
  stria 
  marginali 
  integra 
  ; 
  

   elytris 
  striis 
  1-3 
  integris, 
  4-5 
  brevissimis, 
  suturali 
  subintegra 
  

   arcuata 
  ; 
  pygidio 
  paulum 
  convexo 
  ; 
  tibiis 
  anticis 
  deuticulato, 
  

   tarsis 
  hirsutis. 
  

  

  L. 
  6 
  mill. 
  

  

  Oval, 
  depressed, 
  black, 
  and 
  shining; 
  the 
  head 
  slightly 
  

   impressed 
  anteriorly, 
  not 
  striate, 
  surface 
  sparsely 
  punctulate 
  ; 
  

   tiie 
  thorax, 
  marginal 
  stria 
  tine 
  and 
  complete, 
  sides 
  punctured 
  

   like 
  the 
  head 
  ; 
  the 
  elytra 
  without 
  a 
  subluimeral 
  stria, 
  dorsal 
  

   strise 
  1-3 
  complete, 
  4-5 
  very 
  short 
  and 
  apical 
  and 
  nearly 
  

   meet 
  posteriorly, 
  sutural 
  bowed 
  and 
  slightly 
  abbreviated 
  at 
  

   tlie 
  base 
  ; 
  the 
  propygidium 
  and 
  pygidium 
  are 
  somewhat 
  

  

  