﻿768 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xii. 
  

  

  the 
  median 
  part, 
  flattened 
  inwardly 
  and 
  ending 
  in 
  a 
  short 
  mucro 
  

   bearing 
  the 
  apical 
  spur 
  ; 
  hind 
  claws 
  single, 
  simple 
  ; 
  anterior 
  tibiae 
  

   quadri-dentate, 
  the 
  basal 
  tooth 
  is 
  shorter 
  than 
  the 
  other 
  three, 
  and 
  

   there 
  are 
  two 
  or 
  three 
  serrate 
  teeth 
  above 
  it. 
  

  

  Female 
  : 
  Like 
  the 
  male, 
  but 
  the 
  scales 
  on 
  the 
  pygidial 
  part 
  and 
  

   abdomen 
  are 
  whiter. 
  

  

  This 
  species 
  is 
  a 
  little 
  less 
  elongated 
  than 
  the 
  other 
  species 
  of 
  this 
  

   section, 
  and 
  is 
  a 
  good 
  transition 
  form. 
  

  

  Length 
  4 
  mm. 
  ; 
  width 
  2-J- 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Uitenhage). 
  

  

  Heterochelus 
  (Ischnochelus) 
  timidus, 
  Burm., 
  

   Handb. 
  d. 
  Entomol., 
  iv., 
  1, 
  1844, 
  p. 
  130. 
  

  

  Male 
  : 
  Black, 
  with 
  the 
  elytra 
  light 
  testaceous, 
  but 
  somewhat 
  

   infuscate 
  in 
  the 
  anterior 
  part, 
  legs 
  rufescent 
  ; 
  head 
  very 
  briefly 
  

   pubescent, 
  and 
  very 
  rugose, 
  clypeus 
  straight, 
  sharply 
  angular 
  on 
  each 
  

   side 
  but 
  not 
  denticulate 
  in 
  the 
  centre 
  ; 
  prothorax 
  very 
  closely 
  

   scabroso-punctate 
  almost 
  all 
  over, 
  very 
  briefly 
  pubescent, 
  but 
  having 
  

   along 
  the 
  base 
  and 
  also 
  the 
  outer 
  margin 
  a 
  narrow 
  band 
  of 
  slightly 
  

   flavescent, 
  appressed, 
  sub-squamose 
  hairs, 
  and 
  a 
  few 
  similar 
  ones 
  in 
  

   the 
  posterior 
  part 
  of 
  the 
  deep, 
  median 
  sulcus 
  ; 
  scutellum 
  densely 
  

   scaly 
  ; 
  elytra 
  hardly 
  distinctly 
  costulate 
  and 
  having 
  along 
  the 
  suture 
  

   a 
  broad 
  band 
  of 
  somewhat 
  closely 
  set, 
  ovate, 
  flavescent 
  scales 
  which 
  is 
  

   continued 
  round 
  the 
  apical 
  part, 
  and 
  ascends 
  along 
  the 
  outer 
  margins 
  

   to 
  the 
  humeral 
  part, 
  the 
  space 
  between 
  this 
  sutural 
  and 
  outer 
  

   marginal 
  band 
  is 
  filled 
  with 
  somewhat 
  remote 
  but 
  similar 
  scales 
  

   which 
  do 
  not, 
  however, 
  form 
  bands 
  ; 
  the 
  apical 
  part 
  of 
  the 
  propygi- 
  

   dium 
  and 
  the 
  pygidium 
  are 
  densely 
  covered 
  with 
  thick, 
  sub-lanuginose 
  

   yellow 
  scales, 
  and 
  the 
  abdomen 
  with 
  elongate 
  white 
  ones 
  resembling 
  

   appressed 
  hairs 
  but 
  thicker 
  ; 
  hind 
  tibiae 
  as 
  in 
  the 
  preceding 
  species,, 
  

   apical 
  spur 
  long. 
  

  

  Female 
  : 
  Like 
  the 
  male, 
  but 
  the 
  elytra 
  are 
  a 
  little 
  less 
  infuscate 
  

   behind, 
  and 
  the 
  scales 
  are 
  replaced 
  by 
  squamiform 
  hairs. 
  

  

  Length 
  4-4J 
  mm. 
  ; 
  width 
  2-2^ 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Namaqualand). 
  

  

  Heterochelus 
  (Ischnochelus) 
  parentalis, 
  n. 
  spec. 
  

  

  Female 
  : 
  This 
  species 
  is 
  very 
  closely 
  allied 
  to 
  H. 
  timidus, 
  and 
  it 
  

   might 
  prove 
  to 
  be 
  a 
  large 
  varietal 
  form 
  of 
  the 
  same. 
  The 
  male 
  is 
  

   unknown 
  to 
  me, 
  but 
  in 
  the 
  female 
  the 
  straight 
  clypeus 
  is 
  bi-denticu- 
  

   late 
  in 
  the 
  centre 
  at 
  apex 
  ; 
  the 
  sculpture 
  and 
  vestiture 
  of 
  the 
  head 
  

   and 
  prothorax 
  are 
  the 
  same, 
  the 
  elytra 
  are 
  redder 
  but 
  also 
  slightly 
  

  

  