﻿750 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xii. 
  

  

  suture, 
  and 
  occasionally 
  along 
  the 
  outer 
  margins 
  ; 
  hind 
  femora 
  very 
  

   robust, 
  concave 
  inwardly, 
  the 
  trochanter 
  is 
  fused 
  with 
  the 
  thigh 
  

   and 
  projects 
  as 
  a 
  sharp, 
  long, 
  slightly 
  hooked 
  spine 
  at 
  about 
  the 
  

   median 
  part, 
  the 
  articulation 
  of 
  the 
  knee 
  is 
  not 
  dentate 
  but 
  is 
  

   sharply 
  angular 
  in 
  the 
  outer 
  part, 
  hind 
  tibiae 
  compressed 
  inwardly, 
  

   moderately 
  dilated, 
  not 
  grooved, 
  simple 
  and 
  ending 
  at 
  apex 
  in 
  two 
  

   moderately 
  long, 
  nearly 
  equal 
  mucros, 
  the 
  outer 
  of 
  which 
  bears 
  a 
  

   distinct 
  apical 
  spur; 
  hind 
  claw 
  single, 
  simple. 
  

  

  Female 
  unknown. 
  

  

  Length 
  5-6f 
  mm. 
  ; 
  width 
  3—3^ 
  mm. 
  

  

  Hob. 
  Cape 
  Colony 
  (Carnarvon). 
  

  

  Heterochelus 
  comosus, 
  n. 
  spec. 
  

  

  Male 
  : 
  Black, 
  with 
  the 
  elytra 
  testaceous 
  red, 
  hind 
  legs 
  reddish 
  brown 
  ; 
  

   scutellum, 
  pygidial 
  part 
  and 
  abdomen, 
  as 
  well 
  as 
  the 
  apical 
  margin 
  

   of 
  the 
  elytra 
  covered 
  with 
  yellow 
  scales 
  somewhat 
  lanuginose 
  and 
  

   resembling 
  hairs 
  on 
  the 
  propygidium 
  and 
  abdomen 
  ; 
  head 
  granulose, 
  

   hairy, 
  clypeus 
  with 
  four 
  equal 
  very 
  distinct 
  teeth 
  ; 
  prothorax 
  with 
  a 
  

   villose, 
  sub-flavescent 
  pubescence, 
  and 
  having 
  a 
  shallow 
  groove 
  in 
  the 
  

   middle 
  in 
  the 
  posterior 
  part 
  of 
  the 
  disk 
  ; 
  elytra 
  very 
  distinctly 
  

   attenuate 
  laterally 
  towards 
  the 
  apex, 
  strongly 
  sinuate 
  below 
  the 
  

   shoulders, 
  and 
  leaving 
  a 
  broad 
  part 
  of 
  the 
  upper 
  side 
  of 
  the 
  

   abdominal 
  segments 
  uncovered 
  ; 
  hind 
  legs 
  robust, 
  villose, 
  hind 
  femora 
  

   simple 
  and 
  with 
  the 
  trochanters 
  not 
  spinose, 
  but 
  the 
  outer 
  part 
  of 
  

   the 
  articulation 
  of 
  the 
  knee 
  is 
  distinctly 
  dentate, 
  the 
  hind 
  tibiae 
  

   are 
  dilated 
  in 
  the 
  middle, 
  have 
  an 
  inner, 
  deep 
  excavation 
  with 
  

   a 
  triangular 
  tooth 
  above 
  it 
  on 
  the 
  upper 
  margin 
  and 
  end 
  in 
  a 
  

   curved, 
  robust 
  and 
  sharp 
  mucro 
  bearing 
  a 
  very 
  distinct 
  apical 
  spur, 
  

   the 
  upper 
  part 
  of 
  the 
  apex 
  is 
  also 
  mucronate 
  but 
  the 
  mucro 
  is 
  

   shorter; 
  hind 
  claw 
  single, 
  simple. 
  

  

  Female 
  unknown. 
  

  

  Length 
  8 
  mm. 
  ; 
  width 
  4 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (exact 
  locality 
  unknown). 
  

  

  Heterochelus 
  senilis, 
  n. 
  spec. 
  

  

  Male 
  : 
  Black, 
  with 
  the 
  elytra 
  light 
  testaceous 
  but 
  infuscate 
  

   laterally, 
  scutellum, 
  apical 
  margin 
  of 
  the 
  elytra, 
  pygidial 
  part 
  and 
  

   abdomen 
  clothed 
  with 
  yellowish 
  scales, 
  under 
  side 
  densely 
  pubescent, 
  

   clypeus 
  quadri-dentate, 
  but 
  with 
  the 
  two 
  median 
  teeth 
  not 
  as 
  much 
  

   developed 
  as 
  the 
  outer 
  and 
  set 
  very 
  close 
  to 
  each 
  other 
  ; 
  prothorax 
  

   clothed 
  as 
  in 
  the 
  preceding 
  species 
  with 
  a 
  long 
  greyish 
  pubescence, 
  

   and 
  having 
  a 
  few 
  appressed 
  hairs 
  of 
  the 
  same 
  colour 
  along 
  the 
  base 
  ; 
  

  

  