﻿780 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xii. 
  

  

  some 
  examples 
  almost 
  dentate, 
  in 
  the 
  base 
  of 
  the 
  prothorax 
  there 
  are 
  

   some 
  squamose 
  yellow 
  appressed 
  hairs 
  forming 
  a 
  narrow 
  marginal 
  

   line, 
  which 
  is 
  often 
  obliterated 
  ; 
  scutellum 
  with 
  yellow 
  squamose 
  

   hairs 
  ; 
  elytra 
  not 
  costulate 
  but 
  impressed 
  longitudinally 
  along 
  the 
  

   suture 
  and 
  on 
  the 
  disk, 
  roughly 
  punctate 
  and 
  clothed 
  with 
  fine, 
  

   somewhat 
  dense, 
  slightly 
  flavescent 
  appressed 
  hairs 
  ; 
  pygidial 
  part 
  

   and 
  abdomen 
  covered 
  with 
  contiguous 
  round 
  yellow 
  scales 
  ; 
  anterior 
  

   tibiae 
  sharply 
  bi-dentate, 
  not 
  angular, 
  but 
  pluri-serrate 
  above 
  the 
  basal 
  

   tooth 
  ; 
  hind 
  claw 
  double. 
  

  

  Female 
  : 
  Like 
  the 
  male, 
  but 
  the 
  angles 
  of 
  the 
  clypeus 
  are 
  not 
  so 
  

   sharp, 
  the 
  pubescence 
  on 
  the 
  elytra 
  is 
  not 
  quite 
  so 
  dense, 
  and 
  the 
  

   pygidial 
  part 
  is 
  covered 
  with 
  appressed 
  yellow 
  hairs. 
  

  

  Length 
  4 
  mm. 
  ; 
  width 
  2 
  mm. 
  

  

  Hob. 
  Cape 
  Colony 
  (Cape 
  Town, 
  Stellenbosch). 
  

  

  This 
  species 
  is 
  not 
  a 
  Platychelus, 
  although 
  described 
  as 
  such 
  by 
  

   Blanchard, 
  whose 
  type 
  (a 
  female) 
  I 
  have 
  examined 
  ; 
  it 
  much 
  re- 
  

   sembles 
  0. 
  depressus, 
  spatulijiennis, 
  &c, 
  but 
  is 
  at 
  once 
  distinguished 
  

   by 
  the 
  bi-dentate 
  fore 
  tibiae. 
  

  

  Omockates 
  canaliculatus, 
  Blanch., 
  

   Catal. 
  Coll. 
  Entom. 
  Mus. 
  Par., 
  p. 
  66. 
  

  

  Male: 
  "Black, 
  nearly 
  glabrous, 
  antennae, 
  palpi, 
  legs, 
  and 
  abdomen 
  

   rufous 
  ; 
  head 
  rugose, 
  clypeus 
  quadrate 
  with 
  the 
  angles 
  slightly 
  

   prominent 
  ; 
  prothorax 
  convex, 
  punctate, 
  shining, 
  sides 
  setose, 
  median 
  

   part 
  very 
  broadly 
  furrowed 
  ; 
  scutellum 
  fuscous 
  ; 
  elytra 
  short, 
  punc- 
  

   tate, 
  testaceous, 
  somewhat 
  rufescent 
  at 
  the 
  base 
  and 
  at 
  the 
  apex 
  ; 
  

   pygidium 
  clothed 
  with 
  flavous 
  scales 
  ; 
  anterior 
  tibiae 
  bi-dentate 
  

   outwardly. 
  

  

  Length 
  4 
  mm. 
  

  

  Hob. 
  Cape 
  of 
  Good 
  Hope." 
  

  

  The 
  only 
  example 
  that 
  I 
  have 
  seen 
  is 
  Blanchard's 
  type. 
  It 
  is 
  very 
  

   closely 
  allied 
  to 
  0. 
  spatulipennis, 
  but 
  it 
  is 
  glabrous 
  on 
  the 
  upper 
  side, 
  

   and 
  the 
  prothorax 
  has 
  a 
  very 
  broad 
  median 
  sulcus. 
  

  

  Omocbates 
  elongatus, 
  Blanch., 
  

   Catal. 
  Coll. 
  Entom. 
  Mus. 
  Par., 
  p. 
  66. 
  

  

  Male: 
  "Narrow, 
  black, 
  pilose, 
  the 
  hairs 
  ashy-grey, 
  antennae 
  and 
  

   palpi 
  fuscous 
  ; 
  clypeus 
  concave 
  with 
  the 
  angles 
  projecting 
  ; 
  prothorax 
  

   convex, 
  closely 
  punctate, 
  clothed 
  with 
  greyish 
  hairs 
  ; 
  scutellum 
  

   squamose 
  ; 
  elytra 
  testaceous 
  red, 
  elongate, 
  sparsely 
  pilose 
  ; 
  legs 
  

   black, 
  tarsi 
  of 
  the 
  hind 
  legs 
  red 
  at 
  apex 
  ; 
  anterior 
  tibiae 
  bi-dentate, 
  

  

  