﻿836 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xii. 
  

  

  very 
  shallow 
  groove 
  the 
  lower 
  edge 
  of 
  which 
  is 
  strongly 
  bi-dentate 
  

   near 
  the 
  knee, 
  the 
  second 
  tooth 
  being 
  the 
  more 
  developed 
  of 
  the 
  two, 
  

   and 
  ending 
  in 
  a 
  strong 
  but 
  not 
  very 
  long 
  apical 
  mucro, 
  this 
  edge 
  is 
  

   serrate 
  and 
  villose 
  ; 
  hind 
  claws 
  slightly 
  cleft 
  inwardly 
  towards 
  the 
  

   median 
  part 
  ; 
  the 
  two 
  basal 
  teeth 
  of 
  the 
  anterior 
  tibiae 
  are 
  very 
  short, 
  

   and 
  strongly 
  oblique. 
  

  

  Female 
  : 
  Light 
  chocolate-brown 
  and 
  entirely 
  clothed 
  on 
  the 
  upper 
  

   side 
  with 
  appressed, 
  very 
  closely 
  set, 
  squamiform 
  greyish 
  hairs 
  

   which 
  are, 
  however, 
  somewhat 
  flavescent 
  in 
  the 
  median 
  groove, 
  

   the 
  hairs 
  on 
  the 
  pygidial 
  part 
  are 
  similar 
  to 
  those 
  on 
  the 
  elytra, 
  

   but 
  those 
  which 
  cover 
  the 
  whole 
  of 
  the 
  under 
  side 
  are 
  more 
  

   scale-like. 
  

  

  Length 
  7-7-J 
  mm. 
  ; 
  width 
  3| 
  mm. 
  

  

  Hob. 
  Cape 
  Colony 
  (Namaqualand). 
  

  

  MONOCHELUS 
  AURANTIACUS, 
  Burm., 
  

  

  Plate 
  XLIL, 
  fig. 
  52. 
  

   Handb. 
  d. 
  EntomoL, 
  iv., 
  1, 
  p. 
  157. 
  

  

  Male 
  : 
  Black, 
  with 
  the 
  prothorax 
  and 
  the 
  elytra 
  covered 
  with 
  con- 
  

   tiguous 
  round 
  orange-yellow 
  scales 
  ; 
  head 
  very 
  rugose, 
  briefly 
  

   pubescent, 
  clypeus 
  very 
  rounded 
  laterally 
  at 
  tip 
  and 
  with 
  the 
  

   margins 
  almost 
  non-reflexed 
  ; 
  prothorax 
  very 
  diagonally 
  narrowed 
  

   laterally 
  in 
  the 
  anterior 
  part, 
  rounded 
  and 
  non-em 
  arginate 
  in 
  the 
  

   posterior, 
  not 
  distinctly 
  grooved 
  longitudinally 
  in 
  the 
  centre, 
  and 
  

   fringed 
  along 
  the 
  anterior 
  and 
  the 
  lateral 
  margins 
  with 
  long 
  black 
  

   bristles 
  ; 
  scutellum 
  somewhat 
  small 
  and 
  almost 
  ogival 
  ; 
  elytra 
  

   moderately 
  attenuate 
  laterally 
  towards 
  the 
  apex, 
  non-costulate, 
  and 
  

   having 
  along 
  the 
  suture, 
  immediately 
  below 
  the 
  scutellum, 
  a 
  fascicle 
  

   of 
  very 
  long 
  black 
  bristles 
  and 
  a 
  series 
  of 
  short 
  ones 
  following 
  the 
  

   suture, 
  as 
  well 
  as 
  some 
  hardly 
  distinct 
  rows 
  of 
  similar 
  but 
  still 
  

   shorter 
  bristles 
  projecting 
  from 
  between 
  the 
  scales 
  ; 
  pygidium 
  and 
  

   underside 
  scabrose, 
  glabrous 
  ; 
  hind 
  femora 
  greatly 
  developed 
  and 
  

   having 
  inwardly 
  near 
  the 
  apex, 
  at 
  a 
  short 
  distance 
  from 
  the 
  knee, 
  

   a 
  very 
  long, 
  sub-horizontal, 
  robust 
  spine 
  hamate 
  at 
  the 
  tip, 
  the 
  

   trochanters 
  are 
  not 
  spinose, 
  the 
  hind 
  tibiae 
  are 
  curved, 
  not 
  quite 
  as 
  

   long 
  as 
  the 
  femora, 
  not 
  grooved 
  inwardly 
  and 
  they 
  end 
  in 
  a 
  very 
  

   robust, 
  sharp, 
  apical 
  mucro 
  ; 
  the 
  claws 
  of 
  the 
  anterior 
  and 
  inter- 
  

   mediate 
  legs 
  are 
  distinctly 
  double, 
  the 
  inner 
  one 
  being 
  nearly 
  three- 
  

   quarters 
  of 
  the 
  length 
  of 
  the 
  outer, 
  both 
  are 
  cleft 
  ; 
  and 
  the 
  hind 
  

   claws 
  are 
  simple 
  and 
  single. 
  

  

  Female 
  : 
  Covered 
  like 
  the 
  male 
  with 
  contiguous 
  orange-yellow 
  

   scales 
  on 
  the 
  elytra 
  and 
  the 
  prothorax, 
  but 
  having 
  in 
  the 
  discoidal 
  

  

  