﻿86 
  Mr. 
  G. 
  J. 
  Arrow 
  on 
  tie 
  

  

  5(4). 
  Sides 
  of 
  the 
  pronotum 
  without 
  a 
  smooth 
  [Arrow, 
  

  

  space 
  in 
  the 
  middle 
  punctatissimus, 
  

  

  6 
  (3). 
  Sides 
  of 
  the 
  pronotum 
  very 
  feebly 
  punc- 
  

  

  tured 
  lentus, 
  Burm. 
  

  

  7 
  (2). 
  Propygidium 
  finely 
  and 
  closely 
  striated. 
  

  

  8 
  (9). 
  Elytra 
  scantily 
  punctured, 
  with 
  the 
  

  

  eutural 
  striae 
  obsolescent 
  on 
  the 
  ante- 
  

   rior 
  half 
  polittis, 
  Arrow. 
  

  

  9 
  (8). 
  Elytra 
  with 
  deep 
  entire 
  sutural 
  striae 
  

  

  and 
  numerous 
  confused 
  punctures. 
  

  

  10 
  (15). 
  Mandibles 
  deeply 
  notched 
  and 
  trilobed 
  

  

  externally. 
  

  

  11 
  (14). 
  Clypeus 
  subelliptical, 
  not 
  dentate 
  in 
  

  

  front. 
  

  

  12 
  (13). 
  Pronotum 
  with 
  a 
  well-marked 
  impunc^ 
  

  

  tate 
  area 
  before 
  the 
  scutellum 
  eicardi, 
  sp. 
  n. 
  

  

  13 
  (12). 
  Pronotum 
  without 
  a 
  well-marked 
  im- 
  

  

  punctate 
  area 
  before 
  the 
  scutellum 
  . 
  . 
  borealis, 
  sp. 
  n. 
  

  

  14 
  (11). 
  Clypeus 
  triangular, 
  with 
  the 
  apex 
  mi- 
  

  

  nutely 
  bidentate 
  latus, 
  sp. 
  n. 
  

  

  15 
  (10). 
  Mandibles 
  subquadrate, 
  not 
  distinctly 
  

  

  notched 
  externally 
  rotundus, 
  sp. 
  n. 
  

  

  16 
  (1). 
  Hind 
  angles 
  of 
  the 
  pronotum 
  rounded 
  off. 
  astovensis, 
  sp. 
  n, 
  

  

  Lonchotus 
  borealis, 
  sp. 
  n. 
  

  

  Niger, 
  nitidus, 
  corpora 
  subtus 
  rufo, 
  breviter 
  rufo-hirto, 
  ovatus, 
  

   rotundus 
  ; 
  capite 
  crebre 
  granuloso, 
  clypeo 
  subelliptico, 
  apice 
  

   paulo 
  arcuato, 
  haud 
  dentato; 
  pronoto 
  rugose 
  punotato, 
  area 
  

   laterali 
  laevigata, 
  lateribus 
  medio 
  subangulatis, 
  angulis 
  posticis 
  

   obtusis, 
  basi 
  vix 
  sinuato 
  ; 
  scutello 
  fere 
  impunctato 
  ; 
  elytris 
  

   fortiter 
  confuse 
  punctatis, 
  punctis 
  annulatis, 
  lateribus 
  laevigatis, 
  

   apicibus 
  obsolete 
  punctatis, 
  stria 
  profunda 
  integra 
  suturali 
  ; 
  pro- 
  

   pygidio 
  paulo 
  producto, 
  striis 
  stridulatoriis 
  subtilissimis 
  dense 
  et 
  

   late 
  praedito 
  ; 
  pygidio 
  medio 
  nitido, 
  lateribus 
  minute 
  punctato- 
  

   rugosis; 
  mandibulis 
  extus 
  profunde 
  incisis, 
  trilobatis 
  : 
  

  

  (5 
  , 
  capite 
  sat 
  breviter 
  acute 
  cornuto 
  ; 
  pronoto 
  modice 
  late, 
  pro- 
  

   funde 
  exoavato, 
  lateribus 
  utrinque 
  biacuminatis. 
  

  

  Long. 
  20-22*5 
  mm. 
  ; 
  lat, 
  max. 
  12-13 
  mm. 
  

  

  Hab. 
  N. 
  Madagascar 
  : 
  Grande 
  Terre. 
  

  

  A 
  series 
  of 
  specimens 
  was 
  taken 
  by 
  Dr. 
  A. 
  Sicard, 
  who 
  has 
  

   kindly 
  presented 
  examples 
  of 
  each 
  sex 
  to 
  the 
  British 
  Museum. 
  

   In 
  the 
  best-developed 
  male 
  the 
  thoracic 
  excavation, 
  which 
  is 
  not 
  

   very 
  wide, 
  extends 
  to 
  within 
  a 
  short 
  distance 
  of 
  the 
  hind 
  mar- 
  

   gin, 
  but 
  in 
  others 
  it 
  only 
  reaches 
  about 
  the 
  middle. 
  The 
  sur- 
  

   face 
  of 
  the 
  cavity, 
  as 
  in 
  all 
  the 
  species, 
  is 
  transversely 
  wrinkled, 
  

   and 
  the 
  rest 
  of 
  the 
  pronotum 
  is 
  coarsely 
  punctured, 
  with 
  the 
  

   exception 
  of 
  a 
  smooth 
  area 
  at 
  each 
  lateral 
  edge. 
  The 
  middle 
  

   of 
  the 
  hinder 
  part 
  is 
  visibly, 
  but 
  not 
  strongly, 
  punctured. 
  

   Ihe 
  elytra 
  are 
  moderately 
  coarsely 
  and 
  rather 
  confusedly 
  

   punctured, 
  the 
  punctures 
  being 
  absent 
  from 
  the 
  hinder 
  part 
  

  

  