﻿1902.] 
  Catalogue 
  of 
  the 
  Coleoptera 
  of 
  South 
  Africa. 
  813 
  

  

  and 
  the 
  weaker 
  one 
  is 
  very 
  small 
  in 
  one 
  of 
  my 
  examples 
  but 
  normal 
  

   in 
  the 
  other 
  ; 
  in 
  the 
  latter 
  the 
  hind 
  tibiae 
  are 
  also 
  plainly 
  mucronate 
  

   underneath 
  at 
  apex. 
  

  

  There 
  is 
  a 
  little 
  discrepancy 
  between 
  this 
  description 
  and 
  that 
  

   of 
  Burmeister, 
  who 
  says 
  that 
  the 
  clypeus 
  is 
  quadri-dentate, 
  and 
  

   the 
  teeth 
  of 
  the 
  anterior 
  tibiae 
  very 
  obtuse. 
  The 
  first 
  might 
  be 
  

   a 
  lapsus 
  calami, 
  the 
  other 
  an 
  accident. 
  My 
  example 
  was 
  labelled 
  

   by 
  Drege 
  under 
  this 
  name. 
  This 
  species 
  resembles 
  P. 
  semivirgatus, 
  

   but 
  the 
  head 
  is 
  more 
  finely 
  granulose, 
  and 
  the 
  prothorax 
  is 
  equally 
  

   and 
  also 
  more 
  finely 
  scabrose 
  right 
  to 
  the 
  base 
  ; 
  the 
  shape 
  of 
  the 
  

   clypeus 
  is 
  also 
  different, 
  being 
  plainly 
  tri-dentate. 
  This 
  last 
  feature 
  

   gives 
  it 
  also 
  the 
  appearance 
  of 
  a 
  species 
  of 
  Goniaspidius 
  , 
  from 
  

   which, 
  however, 
  it 
  is 
  distinguished 
  by 
  the 
  short, 
  obtusely 
  triangular 
  

   scutellum. 
  

  

  Length 
  5J 
  mm. 
  ; 
  width 
  3^ 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Graham's 
  Town). 
  

  

  Platychelus 
  unguiculatus, 
  n. 
  spec. 
  

  

  Black, 
  with 
  the 
  elytra 
  and 
  legs 
  red, 
  shining; 
  head 
  and 
  prothorax 
  

   clothed 
  with 
  villose 
  sub-flavescent 
  hairs 
  ; 
  elytra 
  moderately 
  densely 
  

   pubescent 
  ; 
  the 
  pubescence 
  is 
  somewhat 
  greyish, 
  but 
  along 
  the 
  

   suture 
  and 
  the 
  apical 
  margin 
  there 
  is 
  a 
  band 
  of 
  denser 
  and 
  longer 
  

   white 
  hairs 
  turning 
  to 
  yellow 
  on 
  the 
  apical 
  margin 
  ; 
  pygidium 
  

   clothed 
  with 
  very 
  dense, 
  appressed 
  flavescent 
  squamose 
  hairs 
  ; 
  

   clypeus 
  sharply 
  angular 
  laterally, 
  head 
  and 
  prothorax 
  closely 
  

   scabrose 
  ; 
  scutellum 
  clothed 
  with 
  long, 
  dense 
  white 
  hairs 
  ; 
  the 
  

   elytra 
  are 
  punctate, 
  impressed 
  longitudinally 
  along 
  the 
  humeral 
  

   callus 
  ; 
  the 
  propygidium, 
  abdomen, 
  pectus, 
  and 
  legs 
  are 
  clothed 
  

   with 
  greyish 
  or 
  white 
  hairs 
  ; 
  the 
  anterior 
  tibiae 
  are 
  strongly 
  tri- 
  

   dentate 
  outwardly, 
  the 
  teeth 
  are 
  very 
  sharp, 
  and 
  the 
  apical 
  one 
  is 
  

   broadly 
  separated 
  from 
  the 
  other 
  two, 
  which 
  are 
  nearly 
  connate 
  ; 
  

   the 
  hind 
  claws 
  are 
  double 
  and 
  deeply 
  cleft, 
  the 
  two 
  parts 
  of 
  the 
  

   fissured 
  inner 
  claw 
  which 
  is 
  cleft 
  to 
  beyond 
  the 
  median 
  part 
  being 
  

   equal 
  in 
  length 
  and 
  nearly 
  so 
  in 
  thickness. 
  The 
  two 
  sexes 
  are 
  alike. 
  

  

  In 
  no 
  other 
  species 
  of 
  the 
  group 
  to 
  which 
  P. 
  unguiculatus 
  belongs 
  

   is 
  the 
  cleavage 
  of 
  the 
  inner 
  claw 
  so 
  greatly 
  developed. 
  

  

  Length 
  5-6J 
  mm. 
  ; 
  width 
  3-3J 
  mm. 
  

  

  Hob. 
  Cape 
  Colony 
  (Worcester). 
  

  

  Platychelus 
  hottentotus, 
  n. 
  spec. 
  

  

  Shape 
  and 
  sculpture 
  of 
  P. 
  unguiculatus, 
  but 
  somewhat 
  more 
  

   robust 
  ; 
  the 
  shape 
  of 
  the 
  clypeus 
  is 
  the 
  same, 
  the 
  prothorax 
  is 
  

  

  