﻿786 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xii. 
  

  

  with 
  the 
  teeth 
  strongly 
  renexed, 
  and 
  moderately 
  angular 
  laterally 
  at 
  

   the 
  base 
  ; 
  prothorax 
  moderately 
  convex 
  ; 
  scutellum 
  as 
  broad 
  as 
  long, 
  

   straight 
  laterally 
  for 
  more 
  than 
  half 
  the 
  length 
  and 
  thence 
  sharply 
  

   triangular, 
  impressed 
  transversely 
  in 
  the 
  basal 
  part 
  ; 
  elytra 
  somewhat 
  

   triangular, 
  distinctly 
  narrowed 
  laterally 
  towards 
  the 
  apex 
  and 
  sinuate 
  

   below 
  the 
  humeral 
  part, 
  but 
  leaving 
  only 
  a 
  narrow 
  part 
  of 
  the 
  surface 
  

   of 
  the 
  abdominal 
  segments 
  uncovered 
  ; 
  pygidium 
  broad, 
  flat, 
  and 
  

   greatly 
  inflexed 
  in 
  the 
  male 
  ; 
  anterior 
  tibiae 
  tri-dentate 
  outwardly, 
  the 
  

   two 
  basal 
  teeth 
  connate 
  at 
  the 
  base 
  and 
  the 
  apical 
  one 
  oblique 
  as 
  in 
  

   Heterochelus, 
  hind 
  legs 
  moderately 
  slender 
  and 
  simple 
  in 
  both 
  the 
  

   sexes 
  ; 
  all 
  the 
  claws 
  double, 
  the 
  inner 
  one 
  of 
  the 
  intermediate 
  and 
  

   hind 
  legs 
  small, 
  and 
  very 
  small 
  respectively, 
  and 
  the 
  outer 
  cleft 
  ; 
  

   posterior 
  tibiae 
  with 
  a 
  distinct 
  apical 
  spur. 
  

  

  Of 
  the 
  three 
  species 
  included 
  in 
  the 
  genus 
  by 
  Burmeister 
  I 
  retain 
  

   G. 
  brevis 
  only, 
  the 
  other 
  two 
  are 
  true 
  Omocratcs. 
  The 
  distinctive 
  

   characters 
  of 
  Goniaspidius 
  are 
  — 
  (a) 
  the 
  singular 
  shape 
  of 
  the 
  upper 
  

   lobe 
  of 
  the 
  maxillae, 
  which 
  is 
  short, 
  broad, 
  transverse, 
  with 
  the 
  teeth 
  

   disposed 
  along 
  the 
  upper 
  margin, 
  whereas 
  in 
  Omocratcs 
  it 
  is 
  long, 
  

   narrow, 
  and 
  sub-lanceolate, 
  and 
  (b) 
  the 
  shape 
  of 
  the 
  scutellum 
  which, 
  

   instead 
  of 
  being 
  regularly 
  triangular, 
  is 
  rectangular 
  and 
  triangular 
  

   only 
  at 
  apex, 
  and 
  deeply 
  impressed 
  transversely 
  at 
  the 
  base. 
  

  

  Key 
  to 
  the 
  Species. 
  

  

  Elytra 
  black 
  or 
  reddish 
  brown 
  according 
  to 
  the 
  sex, 
  and 
  having 
  each 
  

   three 
  bands 
  of 
  squamose 
  greyish-white 
  hairs 
  ; 
  apical 
  tooth 
  of 
  anterior 
  

   tibiae 
  widely 
  separated 
  at 
  apex 
  from 
  the 
  intermediate 
  one 
  and 
  longer 
  . 
  . 
  brevis. 
  

  

  Elytra 
  testaceous 
  and 
  with 
  a 
  fuscous 
  border 
  all 
  round, 
  apical 
  tooth 
  of 
  

   anterior 
  tibiae 
  strongly 
  turned 
  downwards 
  like 
  the 
  other 
  two 
  and 
  not 
  

   broadly 
  separated 
  from 
  the 
  intermediate 
  one 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  simplex. 
  

  

  Goniaspidius 
  beevis, 
  Burm., 
  

  

  Handb. 
  d. 
  Entomol., 
  iv., 
  1, 
  p. 
  127. 
  

  

  Black 
  in 
  the 
  male, 
  but 
  with 
  the 
  discoidal 
  part 
  of 
  the 
  elytra 
  and 
  

   the 
  legs 
  reddish 
  brown 
  in 
  the 
  female, 
  which 
  is 
  in 
  other 
  respects 
  

   entirely 
  similar 
  to 
  the 
  male 
  ; 
  head 
  and 
  prothorax 
  clothed 
  with 
  

   villose, 
  dense, 
  greyish 
  and 
  black 
  hairs, 
  the 
  clypeus 
  has 
  in 
  front 
  

   three 
  long, 
  sharp, 
  reflexed 
  teeth 
  all 
  of 
  equal 
  size 
  ; 
  the 
  prothorax, 
  

   which 
  is 
  not 
  very 
  convex 
  in 
  the 
  centre, 
  is 
  depressed 
  in 
  the 
  basal 
  

   part, 
  which 
  is 
  nearly 
  impunctate, 
  the 
  rest 
  of 
  the 
  surface 
  is, 
  however, 
  

   scabroso-punctate 
  ; 
  scutellum 
  hairy 
  along 
  the 
  apical 
  border 
  ; 
  elytra 
  

   scarcely 
  broader 
  than 
  the 
  base 
  of 
  the 
  prothorax, 
  plane, 
  punctulate, 
  

   distinctly 
  narrowed 
  laterally 
  from 
  the 
  humeral 
  part 
  towards 
  the 
  apex, 
  

   not 
  costate, 
  but 
  slightly 
  impressed 
  longitudinally 
  along 
  the 
  suture, 
  

  

  