﻿730 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xri. 
  

  

  Length 
  6 
  mm. 
  ; 
  width 
  4 
  mm. 
  

   Hob. 
  Cape 
  Colony 
  (Mossel 
  Bay). 
  

  

  This 
  species 
  is 
  especially 
  distinguished 
  from 
  H. 
  furoninus 
  by 
  the 
  

   absence 
  of 
  an 
  inner 
  tooth 
  at 
  the 
  apex 
  of 
  the 
  hind 
  tibiae. 
  

  

  Heterochelus 
  placatus, 
  n. 
  spec, 
  

   Plate 
  XLII. 
  fig. 
  43. 
  

  

  Male 
  : 
  Very 
  closely 
  allied 
  to 
  H. 
  ictericus 
  ; 
  the 
  shape, 
  sculpture, 
  

   and 
  disposition 
  of 
  the 
  scales 
  and 
  hairs 
  are 
  similar, 
  but 
  the 
  scales 
  are 
  

   more 
  yellow 
  or 
  even 
  deep 
  ochre, 
  and 
  the 
  elytra 
  are 
  very 
  slightly 
  bi- 
  

   costate, 
  but 
  the 
  shape 
  of 
  the 
  hind 
  tibiae 
  is 
  different 
  ; 
  the 
  trochanters 
  

   of 
  the 
  hind 
  femora 
  are 
  long 
  and 
  sharp, 
  and 
  the 
  tooth 
  in 
  the 
  inner 
  part 
  

   of 
  the 
  knee 
  is 
  strong, 
  but 
  the 
  hind 
  tibiae 
  are 
  only 
  moderately 
  deeply 
  

   grooved 
  at 
  the 
  base 
  underneath, 
  and 
  feebly 
  dentate 
  near 
  the 
  knee, 
  

   there 
  is 
  a 
  stronger 
  sub-basal 
  tooth 
  on 
  the 
  upper 
  margin, 
  and 
  a 
  

   strongly 
  developed 
  triangular 
  one 
  on 
  the 
  lower 
  margin, 
  at 
  about 
  the 
  

   middle 
  of 
  the 
  length, 
  and 
  the 
  tibia 
  is 
  very 
  little 
  scooped 
  from 
  there 
  to 
  

   the 
  apex 
  ; 
  the 
  lower 
  margin 
  is 
  moderately 
  serrate, 
  and 
  the 
  apical 
  

   mucro 
  is 
  strong 
  and 
  curved 
  ; 
  no 
  apical 
  spur 
  ; 
  inner 
  claw 
  half 
  the 
  

   length 
  of 
  the 
  outer 
  which 
  is 
  simple. 
  

  

  Female 
  : 
  Black, 
  with 
  the 
  elytra 
  testaceous, 
  clothed 
  with 
  appressed, 
  

   not 
  dense, 
  navescent 
  hairs, 
  and 
  having 
  a 
  few 
  round, 
  yellow 
  scales 
  on 
  

   the 
  posterior 
  edge 
  of 
  the 
  elytra 
  ; 
  pygidium 
  clothed 
  with 
  yellow 
  

   scales. 
  

  

  Length 
  5-J-- 
  6 
  mm. 
  ; 
  width 
  2f-3f 
  mm. 
  

  

  Hab. 
  Natal 
  (Durban). 
  

  

  Heterochelus 
  femoralis, 
  n. 
  spec. 
  

  

  Male 
  : 
  Black, 
  with 
  the 
  elytra 
  and 
  legs 
  brownish 
  red 
  ; 
  elytra 
  clothed 
  

   with 
  small, 
  round 
  yellow 
  scales, 
  scutellum 
  and 
  pygidium 
  scaly 
  ; 
  

   clypeus 
  very 
  indistinctly 
  bi-dentate 
  in 
  the 
  centre, 
  but 
  with 
  the 
  angles 
  

   sharp 
  ; 
  head 
  and 
  prothorax 
  scabroso-punctate, 
  clothed 
  with 
  partly 
  

   appressed, 
  partly 
  erect 
  navous 
  hairs, 
  and 
  having 
  a 
  more 
  or 
  less 
  

   distinct 
  basal 
  band 
  of 
  elongate 
  scales, 
  which 
  also 
  fill 
  partly 
  the 
  

   posterior 
  part 
  of 
  the 
  longitudinal 
  median 
  groove 
  ; 
  scutellum 
  clothed 
  

   with 
  lanceolate 
  scales 
  ; 
  elytra 
  non-costate, 
  having 
  only 
  a 
  basal 
  

   depression 
  in 
  the 
  inner 
  part 
  of 
  the 
  humeral 
  callus, 
  and 
  clothed 
  with 
  

   round 
  scales 
  ; 
  propygidium 
  and 
  pygidium 
  covered 
  with 
  very 
  minute 
  

   contiguous 
  scales 
  ; 
  hind 
  femora 
  strongly 
  ampliate 
  and 
  having 
  beneath 
  

   a 
  long, 
  somewhat 
  thick, 
  horizontal 
  spine 
  beginning 
  at 
  about 
  the 
  

   median 
  part 
  of 
  the 
  thigh, 
  the 
  spine 
  being 
  the 
  prolongation 
  of 
  the 
  

   trochanter 
  which 
  is 
  fused 
  with 
  the 
  thigh, 
  at 
  a 
  short 
  distance 
  from 
  

  

  