﻿1902.] 
  Catalogue 
  of 
  the 
  Coleoptera 
  of 
  South 
  Africa. 
  

  

  809 
  

  

  Platychelus 
  karrooensis, 
  n. 
  spec. 
  

  

  Male 
  : 
  Bronze, 
  somewhat 
  greenish 
  on 
  the 
  prothorax 
  ; 
  elytra 
  

   testaceous 
  red, 
  very 
  shiny, 
  but 
  with 
  scarcely 
  a 
  metallic 
  sheen 
  ; 
  

   clypeus 
  straight 
  at 
  apex, 
  slightly 
  attenuate 
  laterally 
  and 
  with 
  the 
  

   outer 
  angles 
  distinct, 
  the 
  head 
  is 
  very 
  granulose, 
  and 
  slightly 
  

   pubescent 
  ; 
  prothorax 
  very 
  closely 
  scabroso-punctate 
  laterally 
  and 
  

   in 
  the 
  anterior 
  part, 
  but 
  with 
  normal, 
  somewhat 
  closely 
  set 
  punctures 
  

   in 
  the 
  median 
  part, 
  very 
  slightly 
  grooved 
  longitudinally 
  in 
  the 
  

   anterior 
  part 
  only, 
  and 
  clothed 
  with 
  a 
  dense 
  greyish 
  and 
  sub- 
  

   flavescent, 
  long 
  pubescence 
  ; 
  scutellum 
  covered 
  with 
  thick 
  flavous 
  

   hairs 
  ; 
  elytra 
  plainly 
  sinuate 
  and 
  narrowed 
  laterally 
  towards 
  the 
  

   apex, 
  very 
  plane, 
  not 
  costulate, 
  but 
  having 
  a 
  somewhat 
  distinct, 
  

   although 
  very 
  shallow 
  impression 
  along 
  the 
  suture, 
  they 
  are 
  very 
  

   closely 
  punctured, 
  and 
  covered 
  with 
  a 
  very 
  short, 
  appressed, 
  slightly 
  

   fuscous 
  pubescence 
  ; 
  pygidial 
  part 
  and 
  abdomen 
  clothed 
  with 
  a 
  very 
  

   dense, 
  thick 
  yellowish 
  pubescence 
  ; 
  the 
  legs 
  are 
  pubescent, 
  but 
  not 
  

   the 
  hind 
  tarsi 
  ; 
  all 
  the 
  claws 
  are 
  cleft, 
  and 
  the 
  anterior 
  tibiae 
  are 
  

   distinctly 
  tri-dentate. 
  

  

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

  

  This 
  species 
  is 
  distinguished 
  from 
  P. 
  dimidiatus 
  and 
  P. 
  brevis, 
  

   both 
  of 
  which 
  it 
  closely 
  resembles, 
  by 
  the 
  tri-dentate 
  anterior 
  tibiae, 
  

   and 
  also 
  from 
  the 
  last-named 
  species 
  by 
  the 
  non-densely 
  villose 
  hind 
  

   tarsi. 
  

  

  Hob. 
  Cape 
  Colony 
  (Worcester). 
  

  

  Platychelus 
  expansus, 
  n. 
  spec. 
  

  

  Male 
  : 
  Black, 
  with 
  a 
  dark 
  green 
  metallic 
  tinge 
  on 
  the 
  prothorax 
  ; 
  

   head 
  and 
  prothorax 
  clothed 
  with 
  a 
  fulvous 
  erect, 
  somewhat 
  villose 
  

   pubescence 
  ; 
  clypeus 
  normal 
  in 
  shape 
  ; 
  prothorax 
  with 
  a 
  posterior 
  

   short 
  and 
  shallow 
  median 
  groove, 
  scutellum, 
  propygidium, 
  and 
  

   pygidium 
  clothed 
  with 
  dense 
  appressed 
  fulvous 
  hairs 
  ; 
  the 
  elytra 
  

   are 
  broader 
  than 
  in 
  P. 
  dimidiatus 
  and 
  P. 
  brevis, 
  and 
  being 
  not 
  

   longer 
  than 
  in 
  the 
  latter 
  species, 
  they 
  look 
  more 
  ampliated 
  at 
  the 
  

   base, 
  the 
  longitudinal 
  impression 
  near 
  the 
  humeral 
  callus 
  is 
  distinct, 
  

   but 
  there 
  is 
  only 
  a 
  slightly 
  transverse 
  impression 
  below 
  the 
  scutellum, 
  

   they 
  are 
  very 
  closely 
  punctured, 
  are 
  covered 
  with 
  a 
  very 
  short, 
  erect 
  

   black 
  pubescence, 
  and 
  have 
  no 
  trace 
  of 
  appressed 
  greyish 
  hairs 
  ; 
  hind 
  

   legs 
  clothed 
  with 
  a 
  fulvous, 
  not 
  very 
  dense 
  pubescence. 
  

  

  Female 
  unknown. 
  

  

  Length 
  5 
  mm. 
  ; 
  width 
  3 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Pella). 
  

  

  This 
  species 
  resembles 
  also 
  P. 
  karrooensis, 
  but 
  owing 
  to 
  the 
  

  

  