﻿682 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xii. 
  

  

  five 
  patches 
  of 
  dark 
  ones 
  on 
  each 
  side 
  ; 
  posterior 
  legs 
  reddish 
  ; 
  head 
  very- 
  

   rugose, 
  clothed 
  with 
  greyish 
  hairs, 
  clypeus 
  sub-parallel 
  and 
  with 
  the 
  

   angles 
  of 
  the 
  apex 
  sharp, 
  but 
  not 
  dentate 
  ; 
  prothorax 
  very 
  distinctly 
  

   oblique 
  laterally 
  in 
  the 
  anterior 
  part, 
  and 
  sub-parallel 
  from 
  there 
  to 
  

   the 
  base, 
  deeply 
  and 
  closely 
  punctate 
  and 
  having 
  past 
  the 
  median 
  

   part 
  two 
  slight 
  depressions 
  filled 
  by 
  scales 
  ; 
  scutellum 
  sharply 
  

   triangular, 
  longer 
  than 
  broad 
  and 
  covered 
  with 
  rounder 
  and 
  broader 
  

   scales 
  ; 
  elytra 
  ampliated 
  laterally 
  at 
  about 
  the 
  median 
  part, 
  and 
  having 
  

   a 
  very 
  strong 
  humeral 
  callus 
  prolonged 
  far 
  towards 
  the 
  median 
  part 
  

   of 
  the 
  elytra, 
  the 
  space 
  alongside 
  this 
  humeral 
  callus 
  is 
  depressed, 
  

   and 
  across 
  the 
  suture 
  there 
  are 
  two 
  equi-distant 
  transverse 
  impres- 
  

   sions, 
  and 
  a 
  supramarginal 
  one 
  beneath 
  the 
  apical 
  part 
  of 
  the 
  costate 
  

   prolongation 
  of 
  the 
  humeral 
  callus 
  and 
  in 
  a 
  transverse 
  line 
  with 
  the 
  

   lower 
  impression 
  situated 
  next 
  to 
  the 
  suture, 
  these 
  three 
  impressions, 
  

   and 
  also 
  a 
  sulcate 
  one 
  on 
  each 
  side 
  of 
  the 
  humeral 
  callus, 
  are 
  filled 
  

   with 
  a 
  very 
  short, 
  appressed 
  black 
  tomentum 
  ; 
  pygidium 
  and 
  abdomen 
  

   clothed 
  with 
  yellow 
  scales 
  ; 
  anterior 
  tibiae 
  tri-dentate, 
  the 
  two 
  apical 
  

   teeth 
  connate 
  at 
  base, 
  the 
  basal 
  one 
  stronger 
  and 
  somewhat 
  remote 
  ; 
  

   posterior 
  femora 
  swollen, 
  simple, 
  hind 
  tibiae 
  also 
  simple, 
  equally 
  

   swollen, 
  and 
  a 
  little 
  constricted 
  at 
  apex, 
  inner 
  spur 
  distinct 
  ; 
  the 
  four 
  

   basal 
  joints 
  of 
  anterior 
  tibiae 
  sub-triangular, 
  very 
  closely 
  set, 
  basal 
  

   one 
  almost 
  obliterated, 
  fifth 
  joint 
  twice 
  as 
  long 
  as 
  the 
  four 
  basal 
  

   joints 
  put 
  together, 
  moderately 
  swollen, 
  and 
  tri-dentate 
  beneath, 
  

   claw 
  shorter 
  than 
  the 
  apical 
  joint, 
  curved 
  and 
  simple. 
  

  

  Female 
  not 
  known 
  with 
  certainty. 
  

  

  The 
  two 
  examples 
  I 
  have 
  at 
  my 
  disposal 
  are 
  one 
  captured 
  by 
  

   Drege 
  and 
  from 
  which 
  the 
  description 
  is 
  made, 
  and 
  another 
  in 
  which 
  

   the 
  prothorax 
  is 
  entirely 
  covered 
  with 
  elongate 
  white 
  scales 
  and 
  has 
  

   two 
  post-median 
  elongate 
  patches 
  on 
  each 
  side 
  of 
  the 
  posterior 
  part 
  

   formed 
  by 
  more 
  closely 
  set 
  scales. 
  This 
  is 
  probably 
  the 
  normal 
  form, 
  

   because 
  the 
  second 
  example 
  is 
  fresher 
  than 
  the 
  one 
  from 
  Drege' 
  s 
  

   collection. 
  

  

  Hab. 
  Cape 
  Colony 
  (Namaqualand). 
  

  

  Pachycnema 
  alteknans, 
  Burm., 
  

   Handb. 
  d. 
  Entom., 
  iv., 
  1, 
  p. 
  61, 
  1844. 
  

  

  Head 
  and 
  prothorax 
  black, 
  elytra 
  and 
  hind 
  tibiae 
  reddish 
  in 
  both 
  

   sexes 
  ; 
  prothorax 
  with 
  a 
  marginal 
  band 
  of 
  yellowish 
  white 
  scales, 
  a 
  

   median 
  longitudinal 
  line 
  and 
  three 
  spots 
  on 
  each 
  side 
  of 
  it 
  ; 
  elytra 
  

   with 
  three 
  longitudinal 
  bands 
  of 
  similar 
  scales 
  ; 
  propygidium 
  and 
  

   pygidium 
  clothed 
  with 
  yellow 
  scales 
  ; 
  head 
  very 
  rugose, 
  clothed 
  with 
  

   black 
  hairs, 
  clypeus 
  very 
  little 
  narrowed 
  towards 
  the 
  apex, 
  long, 
  sub- 
  

  

  