﻿1902.] 
  Catalogue 
  of 
  the 
  Colcoptera 
  of 
  South 
  Africa. 
  631 
  

  

  on 
  the 
  clypeus 
  which 
  is 
  as 
  long 
  as 
  the 
  head, 
  broad, 
  parallel 
  

   laterally, 
  but 
  with 
  the 
  anterior 
  angles 
  rounded, 
  straight 
  and 
  not 
  

   emarginate 
  at 
  tip 
  and 
  with 
  the 
  margins 
  reflexed, 
  genae 
  prominent; 
  

   prothorax 
  clothed 
  with 
  dense 
  villose 
  *hairs 
  and 
  covered 
  with 
  some-, 
  

   what 
  closely 
  set 
  orange-yellow 
  minute 
  scales 
  ; 
  scutellum 
  densely 
  

   squamose 
  ; 
  elytra 
  sub-parallel, 
  having 
  two 
  shallow 
  dorsal 
  longi- 
  

   tudinal 
  sulci 
  clothed 
  with 
  minute 
  orange 
  scales 
  which 
  cover 
  also 
  

   the 
  slightly 
  raised 
  costae, 
  but 
  the 
  humeral 
  angle 
  is 
  often 
  denuded, 
  

   along 
  the 
  suture 
  and 
  the 
  outer 
  margin 
  there 
  is 
  a 
  series 
  of 
  long, 
  

   bristle-like 
  hairs, 
  but 
  the 
  whole 
  dorsal 
  part 
  is 
  hairy, 
  the 
  hairs 
  on 
  

   the 
  two 
  costae 
  being 
  a 
  little 
  longer, 
  stiffer, 
  and 
  more 
  seriate 
  ; 
  

   propygidium 
  covered 
  with 
  yellow 
  scales 
  and 
  also 
  densely 
  hairy 
  ; 
  

   abdomen 
  clothed 
  with 
  whitish 
  scales, 
  and 
  the 
  pectus 
  with 
  greyish 
  

   hairs 
  ; 
  legs 
  black, 
  clothed 
  with 
  a 
  not 
  very 
  dense, 
  flavescent 
  

   pubescence; 
  anterior 
  tibiae 
  sharply 
  bi-dentate 
  outwardly. 
  

  

  Length 
  7 
  mm. 
  ; 
  width 
  4 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Cape 
  Town, 
  Stellenbosch, 
  Paarl, 
  Worcester). 
  

  

  Chasme 
  jucunda, 
  n. 
  spec. 
  

  

  Narrower 
  than 
  the 
  preceding 
  species 
  ; 
  the 
  scales 
  with 
  which 
  it 
  

   is 
  clothed 
  are 
  paler, 
  the 
  head 
  and 
  prothorax 
  are 
  similarly 
  shaped, 
  

   but 
  the 
  hairs, 
  instead 
  of 
  being 
  villose, 
  are 
  very 
  short 
  and 
  appressed 
  ; 
  

   the 
  elytra 
  have 
  only 
  a 
  few 
  sub-appressed 
  black, 
  bristle-like 
  hairs, 
  

   and 
  those 
  along 
  the 
  suture 
  and 
  the 
  outer 
  margins 
  are 
  also 
  shorter 
  ; 
  

   instead 
  of 
  being 
  entirely 
  clothed 
  with 
  the 
  yellow 
  scales, 
  each 
  elytron 
  

   has 
  one 
  broad 
  sutural 
  and 
  one 
  marginal 
  band, 
  and 
  a 
  median 
  one 
  

   which 
  stops 
  at 
  some 
  distance 
  from 
  the 
  apex 
  ; 
  pygidium 
  densely 
  

   squamose 
  and 
  somewhat 
  hairy, 
  the 
  scales 
  are 
  yellow, 
  but 
  turn 
  to 
  

   white 
  on 
  the 
  abdomen 
  ; 
  legs 
  black, 
  hind 
  tibiae 
  clothed 
  sparingly 
  with 
  

   flavescent 
  hairs 
  ; 
  anterior 
  tibiae 
  sharply 
  bi-dentate 
  outwardly. 
  

  

  Length 
  7 
  mm. 
  ; 
  width 
  4 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Clanwilliam). 
  

  

  I 
  have 
  seen 
  the 
  female 
  only 
  of 
  this 
  species, 
  and 
  the 
  scales 
  of 
  the 
  

   male 
  may 
  be 
  deeper 
  orange-yellow. 
  

  

  Chasme 
  nobilitata, 
  Burm., 
  

   Handb. 
  d. 
  Entom., 
  iv., 
  1, 
  1844, 
  p. 
  37. 
  

  

  Broader, 
  and 
  therefore 
  a 
  little 
  more 
  massive 
  than 
  C. 
  decora 
  ; 
  it 
  

   is 
  easily 
  distinguished 
  by 
  the 
  unidentate 
  fore 
  tibiae 
  ; 
  the 
  head 
  and 
  

   prothorax 
  are 
  similar 
  in 
  shape, 
  and 
  also 
  clothed 
  with 
  villose 
  black 
  

   hairs 
  and 
  flavescent 
  scales 
  ; 
  the 
  elytra 
  are 
  distinctly 
  broader 
  than 
  

  

  