﻿824 
  Transactions 
  South 
  African 
  Philosophical 
  Socie-ty. 
  [vol. 
  xii. 
  

  

  rugoso-punctate 
  and 
  clothed 
  with 
  very 
  long, 
  villose 
  hairs 
  ; 
  elytra 
  

   elongate, 
  slightly 
  broader 
  than 
  the 
  prothorax, 
  sinuate 
  laterally 
  below 
  

   the 
  shoulders, 
  but 
  not 
  much 
  attenuate 
  thence 
  towards 
  the 
  apex, 
  

   they 
  are 
  deeply 
  and 
  irregularly 
  punctured, 
  have 
  two 
  costules 
  on 
  each 
  

   side, 
  and 
  from 
  each 
  scattered 
  puncture 
  springs 
  a 
  long 
  appressed 
  

   flavescent 
  hair 
  ; 
  pygidium, 
  under 
  side 
  and 
  legs 
  with 
  a 
  flavescent 
  

   pubescence. 
  

  

  Female 
  unknown. 
  

  

  Length 
  6 
  J 
  mm. 
  ; 
  width 
  3 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Worcester). 
  

  

  IDUTYWA, 
  n. 
  gen. 
  

  

  Buccal 
  organs 
  of 
  Platychelus, 
  from 
  which 
  it 
  differs 
  in 
  the 
  shape 
  of 
  

   the 
  claws, 
  which 
  are 
  longer, 
  especially 
  the 
  anterior 
  ones, 
  not 
  so 
  

   deeply 
  cleft, 
  and 
  the 
  posterior 
  ones 
  are 
  single 
  and 
  simple 
  ; 
  the 
  

   clypeus 
  is 
  straight 
  at 
  apex 
  with 
  the 
  angles 
  slightly 
  rounded, 
  and 
  the 
  

   prothorax 
  and 
  elytra 
  are 
  more 
  convex 
  ; 
  the 
  fore 
  tibiae 
  have 
  two 
  

   oblique 
  outer 
  teeth, 
  and 
  the 
  posterior 
  ones 
  no 
  apical 
  spur 
  in 
  the 
  

   male. 
  

  

  Key 
  to 
  the 
  Species. 
  

  

  Prothorax 
  with 
  a 
  median 
  band 
  of 
  ashy 
  grey 
  hairs 
  and 
  a 
  border 
  of 
  the 
  

   same 
  all 
  round, 
  elytra 
  with 
  three 
  bands 
  of 
  appressed 
  grey 
  hairs 
  on 
  each 
  

   side 
  collaris. 
  

  

  Prothorax 
  and 
  elytra 
  with 
  black 
  hairs, 
  the 
  latter 
  very 
  dark 
  brown 
  . 
  . 
  vidua. 
  

  

  Idutywa 
  collaris, 
  Burin., 
  

   Monochelus 
  collaris, 
  Handb. 
  d. 
  Entomol., 
  iv., 
  1, 
  p. 
  156. 
  

  

  Male 
  : 
  Black, 
  prothorax 
  with 
  a 
  broad 
  border 
  of 
  ashy 
  grey, 
  appressed, 
  

   sub-squamose 
  hairs 
  and 
  a 
  broad 
  patch 
  of 
  the 
  same 
  in 
  the 
  anterior 
  

   part 
  of 
  the 
  disk 
  whence 
  it 
  is 
  continued 
  in 
  the 
  longitudinal 
  median 
  

   groove 
  which 
  is 
  deep, 
  and 
  in 
  addition 
  to 
  these 
  appressed 
  hairs 
  is 
  

   clothed 
  with 
  a 
  blackish 
  erect 
  pubescence 
  ; 
  the 
  head 
  is 
  also 
  pubescent, 
  

   but 
  the 
  pubescence 
  is 
  shorter 
  and 
  sub-flavescent, 
  it 
  is 
  very 
  granulose 
  

   all 
  over, 
  and 
  the 
  ciypeus 
  is 
  short, 
  straight 
  at 
  apex 
  with 
  the 
  angles 
  

   slightly 
  rounded, 
  yet 
  distinct 
  ; 
  the 
  palpi 
  and 
  antennae, 
  with 
  the 
  

   exception 
  of 
  the 
  club, 
  are 
  reddish, 
  this 
  club 
  however 
  is 
  black 
  ; 
  the 
  

   prothorax 
  is 
  plainly 
  convex 
  and 
  very 
  rugose 
  ; 
  scutellum 
  short, 
  

   clothed 
  with 
  squamose 
  greyish 
  hairs 
  ; 
  elytra 
  sinuate 
  laterally, 
  

   but 
  attenuate 
  towards 
  the 
  apex, 
  not 
  costulate 
  on 
  each 
  side, 
  but 
  

   having 
  there 
  two 
  longitudinal 
  depressions 
  or 
  broad 
  striae, 
  one, 
  the 
  

   longer, 
  along 
  the 
  suture, 
  the 
  other 
  and 
  much 
  shorter 
  one, 
  on 
  the 
  

  

  