﻿Dynastid 
  Genus 
  Lonchotus. 
  85 
  

  

  apparently 
  (cf. 
  Felsche, 
  Deutsclie 
  ent. 
  Zeitschr. 
  1906, 
  p. 
  350) 
  

   the 
  form 
  long 
  before 
  described 
  from 
  the 
  female 
  by 
  Klug 
  as 
  

   Geotrupes 
  crassus. 
  I 
  now 
  raise 
  the 
  number 
  of 
  known 
  species 
  

   to 
  nine, 
  by 
  the 
  addition 
  of 
  five 
  new 
  species, 
  the 
  types 
  of 
  all 
  

   of 
  which 
  are 
  in 
  the 
  British 
  Museum. 
  All 
  have 
  a 
  close 
  

   external 
  resemblance, 
  but, 
  as 
  is 
  frequently 
  found 
  in 
  such 
  

   cases, 
  the 
  genitalia 
  of 
  the 
  males 
  show 
  strongly 
  marked 
  

   differences. 
  The 
  females 
  are 
  very 
  difficult 
  to 
  distinguish, 
  

   but 
  the 
  following 
  table 
  of 
  the 
  species 
  will, 
  I 
  hope, 
  prove 
  

   sufficient 
  for 
  the 
  discrimination 
  of 
  both 
  sexes. 
  

  

  The 
  genus 
  is 
  related 
  to 
  DipeUcus, 
  but 
  is 
  quite 
  distinct 
  and 
  

   remarkably 
  homogeneous. 
  It 
  is 
  practically 
  confined 
  to 
  

   Madagascar, 
  and 
  it 
  is 
  remarkable 
  that, 
  although 
  systematic 
  

   collecting 
  has 
  now 
  been 
  carried 
  out 
  in 
  most 
  of 
  the 
  numerous 
  

   small 
  islands 
  of 
  the 
  Mascarene 
  region, 
  the 
  little 
  coral 
  island 
  

   of 
  Astove, 
  about 
  150 
  miles 
  north-west 
  of 
  the 
  northern 
  end 
  of 
  

   Madagascar, 
  is 
  the 
  only 
  one 
  in 
  which 
  this 
  genus 
  has 
  been 
  

   discovered, 
  while 
  the 
  form 
  occurring 
  in 
  that 
  island 
  is 
  a 
  very 
  

   distinct 
  one 
  which 
  certainly 
  cannot 
  be 
  regarded 
  as 
  of 
  late 
  

   evolution. 
  Specimens 
  of 
  Lonchotus 
  lentus 
  from 
  the 
  Dejean 
  

   Collection 
  now 
  in 
  the 
  British 
  Museum 
  were 
  said 
  to 
  come 
  from 
  

   the 
  He 
  de 
  France 
  ; 
  but 
  this 
  has 
  not 
  been 
  confirmed, 
  although 
  

   it 
  has 
  many 
  times 
  been 
  brought 
  from 
  Madagascar. 
  Dr. 
  Sicard 
  

   has 
  it 
  from 
  Ivondro. 
  

  

  The 
  majority 
  of 
  the 
  species 
  inhabit 
  the 
  northern 
  part 
  of 
  

   their 
  region, 
  but 
  probably 
  the 
  number 
  will 
  be 
  further 
  in- 
  

   creased 
  when 
  other 
  parts 
  of 
  Madagascar 
  have 
  been 
  more 
  

   thoroughly 
  explored. 
  Lonchotus 
  crassus, 
  Klug, 
  was 
  found 
  

   at 
  Antongil 
  Bay 
  (Brit. 
  Mus.), 
  and 
  Dr. 
  Sicard 
  has 
  a 
  series 
  of 
  

   L. 
  punctatissimus, 
  Arrow, 
  from 
  Mt. 
  Amber. 
  Of 
  L. 
  politus, 
  

   Arrow, 
  described 
  from 
  specimens 
  collected 
  by 
  Professor 
  Scott 
  

   Elliot 
  at 
  Fort 
  Dauphin 
  in 
  the 
  south, 
  Dr. 
  Sicard 
  has 
  a 
  female 
  

   taken 
  at 
  Fianarantsoa. 
  

  

  The 
  figures 
  of 
  male 
  and 
  female 
  given 
  in 
  Grandidier's 
  

   ' 
  Histoire 
  de 
  Madagascar/ 
  Coleoptera, 
  pi. 
  xx. 
  figs. 
  5 
  & 
  6, 
  

   with 
  the 
  name 
  Lonchotus 
  crassus, 
  do 
  not 
  represent 
  that 
  

   species, 
  but 
  apparently 
  L. 
  lentus, 
  Burm. 
  

  

  1 
  (16). 
  Hind 
  angles 
  of 
  the 
  pronotum 
  not 
  

  

  rounded 
  oft'. 
  

  

  2 
  (7). 
  Propygidium 
  coarsely 
  striated. 
  

  

  3 
  (6). 
  Sides 
  of 
  the 
  pronotum 
  very 
  strongly 
  

  

  punctured. 
  

   .4 
  (-5). 
  Sides 
  of 
  the 
  pronotum 
  with 
  a 
  smooth 
  

   space 
  in 
  the 
  middle. 
  

   (Pro 
  thorax 
  of 
  male 
  without 
  anterior 
  

   tubercles) 
  crassus, 
  Klug. 
  

  

  