﻿1902.] 
  Catalogue 
  of 
  the 
  Coleoptera 
  of 
  South 
  Africa. 
  689 
  

  

  and 
  with 
  the 
  posterior 
  angle 
  sharply 
  projecting, 
  it 
  is 
  deeply 
  and 
  

   closely 
  punctured 
  ; 
  scutellum 
  triangular, 
  not 
  elongate, 
  as 
  long 
  as 
  

   broad, 
  not 
  scaly 
  ; 
  elytra 
  elongato-quadrate, 
  rounded 
  singly 
  at 
  apex, 
  

   plane 
  with 
  the 
  humeral 
  callus 
  conspicuous 
  and 
  elongate 
  longi- 
  

   tudinally, 
  moderately 
  punctulate, 
  each 
  puncture 
  bearing 
  a 
  very 
  

   short, 
  black 
  bristle, 
  decumbent 
  but 
  erect, 
  however, 
  in 
  the 
  basal 
  part, 
  

   suture 
  and 
  outer 
  margin 
  with 
  seriate 
  black 
  bristles 
  ; 
  propygidium 
  

   clothed 
  along 
  the 
  margin 
  only 
  with 
  white 
  scales 
  in 
  both 
  sexes 
  ; 
  

   pectus 
  clothed 
  with 
  dense 
  greyish 
  hairs 
  ; 
  anterior 
  tibiae 
  strongly 
  

   tri-dentate 
  ; 
  the 
  teeth 
  are 
  equi-distant, 
  the 
  apical 
  one 
  is 
  longer 
  than 
  

   the 
  intermediate 
  ; 
  the 
  anterior 
  tibiae 
  have 
  a 
  distinct, 
  inner 
  spur 
  ; 
  

   the 
  hind 
  ones 
  are 
  longer 
  than 
  the 
  thigh, 
  moderately 
  swollen 
  in 
  

   the 
  male, 
  less 
  so 
  in 
  the 
  female 
  ; 
  the 
  hind 
  tarsi 
  are 
  of 
  nearly 
  equal 
  

   length 
  in 
  both 
  sexes, 
  but 
  more 
  broadly 
  triangular 
  in 
  the 
  male 
  ; 
  the 
  

   fifth 
  joint 
  is 
  as 
  long 
  as 
  the 
  four 
  preceding 
  ones 
  taken 
  together, 
  and 
  

   tri-denticulate 
  beneath. 
  

  

  Length 
  8-9 
  mm. 
  ; 
  width 
  4^—5 
  mm. 
  

  

  This 
  species 
  is 
  intermediate 
  between 
  Pachycnema 
  and 
  Pherocoma, 
  

   and 
  it 
  is 
  difficult 
  to 
  decide 
  where 
  to 
  place 
  it 
  ; 
  but 
  the 
  hind 
  claw 
  is 
  

   simple, 
  and 
  it 
  is 
  therefore 
  a 
  Pachycnema. 
  Burmeister 
  included 
  it 
  

   among 
  his 
  Anisonyx 
  ; 
  but 
  the 
  facies 
  is 
  very 
  different. 
  

  

  Hah. 
  Cape 
  Colony 
  (Namaqualand). 
  

  

  PACHYCNEMIDA, 
  n. 
  gen 
  

  

  Shape 
  and 
  facies 
  of 
  Pachycnema, 
  but 
  the 
  upper 
  lobe 
  of 
  the 
  

   maxillae 
  is 
  very 
  slender 
  and 
  penicillate 
  ; 
  the 
  maxilla 
  is 
  armed 
  on 
  

   each 
  side 
  with 
  four 
  falcate 
  teeth 
  facing 
  each 
  other, 
  but 
  gradually 
  

   decreasing 
  in 
  size 
  from 
  the 
  uppermost, 
  the 
  apical 
  joint 
  of 
  the 
  

   maxillary 
  palpi 
  is 
  nearly 
  sub-oblong 
  and 
  compressed 
  ; 
  the 
  clypeus, 
  

   however, 
  is 
  not 
  acuminate 
  ; 
  the 
  other 
  generic 
  characters 
  are 
  as 
  in 
  

   Pachycnema. 
  

  

  Pachycnemida 
  signatipennis, 
  Burm., 
  

   Plate 
  XLIL, 
  fig. 
  4. 
  

   Handb. 
  d. 
  Entom., 
  iv., 
  1, 
  p. 
  66. 
  

   Pachycnema 
  farmosa, 
  Pering., 
  Trans. 
  S. 
  Afric. 
  Phil. 
  Soc. 
  

  

  Light 
  chestnut, 
  densely 
  clothed 
  with 
  lanceolate 
  white 
  appressed 
  

   scales, 
  and 
  a 
  very 
  brief, 
  greyish 
  pubescence 
  on 
  the 
  head 
  and 
  

   prothorax 
  ; 
  scutellum 
  scaly, 
  elytra 
  covered^ 
  with 
  white 
  scales, 
  

   denser 
  and 
  more 
  closely 
  set 
  in 
  parts, 
  and 
  thus 
  forming 
  on 
  each 
  side 
  

   three 
  narrow, 
  elongate 
  patches 
  on 
  the 
  anterior 
  part 
  and 
  two 
  long, 
  

  

  44 
  

  

  