﻿812 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xii. 
  

  

  long 
  greyish 
  erect 
  pubescence 
  ; 
  elytra 
  with 
  a 
  distinct 
  sutural 
  and 
  

   apical 
  band 
  of 
  white, 
  appressed, 
  slightly 
  squamulose 
  hairs 
  obliterated 
  

   close 
  to 
  the 
  apex 
  of 
  the 
  scutellum, 
  there 
  is 
  also 
  a 
  faint 
  trace 
  of 
  a 
  

   discoidal 
  and 
  of 
  a 
  supra-marginal 
  line 
  of 
  similar 
  hairs 
  ; 
  the 
  pygidial 
  

   part 
  and 
  abdomen 
  are 
  covered 
  with 
  appressed 
  hairs 
  more 
  naves- 
  

   cent 
  on 
  the 
  pygidium 
  than 
  on 
  the 
  abdomen 
  ; 
  clypeus 
  very 
  scabrose, 
  

   slightly 
  attenuate 
  laterally, 
  straight 
  at 
  the 
  apex 
  with 
  the 
  angles 
  

   sharp 
  and 
  reflexed, 
  and 
  a 
  slight 
  prominence 
  in 
  the 
  centre 
  of 
  the 
  

   reflexed 
  margin 
  ; 
  prothorax 
  very 
  closely 
  scabrose 
  except 
  on 
  the 
  

   median 
  basal 
  part, 
  which 
  is 
  punctured, 
  it 
  has 
  a 
  distinct 
  median 
  

   longitudinal 
  groove 
  ; 
  scutellum 
  densely 
  hairy 
  ; 
  elytra 
  very 
  plainly 
  

   sinuate 
  laterally 
  and 
  attenuate 
  towards 
  the 
  apex, 
  irregularly 
  and 
  

   somewhat 
  closely 
  punctured, 
  not 
  costulate 
  but 
  having 
  two 
  longi- 
  

   tudinal 
  impressions 
  ; 
  anterior 
  tibiae 
  tri-dentate, 
  the 
  apical 
  tooth 
  is 
  

   very 
  slanting, 
  but 
  the 
  other 
  two, 
  although 
  not 
  quite 
  connate 
  at 
  the 
  

   base, 
  are 
  set 
  at 
  right 
  angles 
  somewhat 
  in 
  the 
  fashion 
  of 
  Hetero- 
  

   chelus, 
  among 
  which 
  this 
  species 
  should 
  be 
  placed 
  but 
  for 
  the 
  

   stronger 
  hind 
  claw 
  being 
  deeply 
  cleft 
  at 
  the 
  tip. 
  

  

  Female 
  : 
  Exactly 
  like 
  the 
  male, 
  but 
  a 
  little 
  more 
  robust 
  ; 
  it 
  can 
  

   be 
  distinguished 
  by 
  the 
  shape 
  of 
  the 
  pygidium 
  only. 
  

  

  Length 
  5-7-J 
  mm. 
  ; 
  width 
  3-3^ 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Worcester, 
  Namaqualand, 
  Graham's 
  Town). 
  

  

  Platychelus 
  virgatus, 
  Burm., 
  

   Handb. 
  d. 
  Entomol, 
  iv., 
  1, 
  148. 
  

  

  Male 
  : 
  Black, 
  with 
  a 
  very 
  faint 
  metallic 
  tinge 
  ; 
  prothorax 
  clothed 
  

   with 
  a 
  moderately 
  short, 
  dense 
  greyish 
  pubescence 
  ; 
  scutellum 
  

   hairy, 
  elytra 
  with 
  three 
  moderately 
  distinct 
  bands 
  of 
  appressed 
  

   greyish 
  hairs, 
  the 
  median 
  one 
  of 
  which 
  is 
  obliterated 
  past 
  the 
  

   middle 
  ; 
  pygidial 
  part, 
  abdomen 
  and 
  legs 
  clothed 
  with 
  appressed 
  

   hairs 
  flavescent 
  on 
  the 
  pygidium, 
  greyish 
  elsewhere; 
  head 
  finely 
  

   scabrose, 
  clypeus 
  slightly 
  attenuate 
  laterally, 
  plainly 
  tri-dentate 
  at 
  

   apex 
  and 
  with 
  the 
  teeth 
  reflexed 
  ; 
  the 
  prothorax 
  is 
  finely 
  scabrose 
  

   all 
  over 
  ; 
  scutellum 
  clothed 
  with 
  greyish 
  hairs 
  ; 
  elytra 
  plainly 
  

   sinuate 
  laterally 
  and 
  attenuate 
  towards 
  the 
  apex, 
  bi-impressed 
  longi- 
  

   tudinally 
  on 
  each 
  side, 
  the 
  juxta-humeral 
  impression 
  being 
  deeper 
  

   but 
  shorter 
  than 
  the 
  sutural 
  one, 
  they 
  are 
  closely 
  but 
  irregularly 
  

   punctured 
  and 
  somewhat 
  brownish 
  laterally, 
  and 
  they 
  have 
  a 
  few 
  

   ashy 
  grey 
  hairs 
  in 
  the 
  intervals 
  of 
  the 
  hairy 
  bands 
  ; 
  anterior 
  tibiae 
  

   tri-dentate, 
  but 
  with 
  the 
  basal 
  one 
  much 
  shorter 
  than 
  the 
  inter- 
  

   mediate, 
  the 
  two, 
  however, 
  are 
  set 
  close 
  to 
  each 
  other 
  and 
  almost 
  at 
  

   right 
  angles 
  with 
  the 
  tibiae 
  ; 
  the 
  robust 
  hind 
  claw 
  is 
  cleft 
  laterally, 
  

  

  