﻿1902.] 
  Catalogue 
  of 
  the 
  Coleoptera 
  of 
  South 
  Africa. 
  823 
  

  

  Platychelus 
  nitens, 
  Blanch., 
  

   Ibid., 
  p. 
  64. 
  

  

  " 
  Allied 
  to 
  P. 
  hoploides, 
  but 
  smaller 
  and 
  more 
  depressed 
  ; 
  black, 
  

   shining, 
  clypeus 
  little 
  reflexed 
  ; 
  prothorax 
  convex, 
  shining, 
  hairy, 
  

   hairs 
  black; 
  elytra 
  depressed, 
  broad, 
  uni-costate, 
  granulated, 
  black, 
  

   with 
  the 
  outer 
  part 
  rufous 
  except 
  the 
  humeral 
  margin 
  ; 
  legs 
  black, 
  

   anterior 
  tibiae 
  tri-dentate, 
  claws 
  of 
  the 
  hind 
  legs 
  unequal, 
  inner 
  one 
  

   slender, 
  outer 
  one 
  broad, 
  bifid 
  ; 
  abdomen 
  entirely 
  black, 
  and 
  with 
  

   ashy-grey 
  hairs 
  inwardly. 
  

  

  Length 
  5-6 
  mm." 
  

  

  This 
  species 
  resembles 
  P. 
  litigosus 
  to 
  such 
  an 
  extent 
  that 
  at 
  the 
  

   time 
  of 
  my 
  examination 
  I 
  noted 
  the 
  two 
  as 
  being 
  identical, 
  but 
  

   P. 
  litigosus 
  has 
  the 
  anterior 
  tibiae 
  distinctly 
  tri-dentate, 
  whereas 
  in 
  

   his 
  description 
  of 
  P. 
  nitens 
  Blanchard 
  says 
  that 
  they 
  are 
  bi-dentate. 
  

   I 
  did 
  not 
  at 
  the 
  time 
  notice 
  this 
  difference." 
  

  

  COEGA, 
  n. 
  gen. 
  

  

  Mentum 
  elongate, 
  oblong 
  but 
  attenuate 
  laterally 
  towards 
  the 
  apex, 
  

   moderately 
  constricted 
  at 
  the 
  point 
  of 
  insertion 
  of 
  the 
  antennae, 
  and 
  

   not 
  ampliated 
  thence, 
  the 
  apical 
  part 
  is 
  nearly 
  straight, 
  and 
  the 
  

   angles 
  are 
  not 
  penicillate 
  ; 
  maxillae 
  long, 
  inner 
  lobe 
  obliterated, 
  upper 
  

   lobe 
  not 
  penicillate, 
  and 
  produced 
  into 
  three 
  sharp, 
  hooked 
  teeth 
  

   arranged 
  transversely 
  at 
  the 
  tip 
  ; 
  apical 
  joint 
  of 
  maxillary 
  palpi 
  long, 
  

   strongly 
  fusiform 
  and 
  sub-acuminate 
  ; 
  clypeus 
  short, 
  straight 
  at 
  the 
  

   apex, 
  but 
  with 
  the 
  angles 
  rounded 
  ; 
  antennae 
  nine-jointed, 
  club 
  as 
  

   long 
  as 
  all 
  the 
  other 
  joints 
  taken 
  together, 
  sixth 
  joint 
  lamellate 
  but 
  

   short 
  ; 
  prothorax 
  a 
  little 
  attenuate 
  laterally 
  in 
  front, 
  sinuate 
  behind 
  

   and 
  with 
  the 
  basal 
  angle 
  sharp 
  ; 
  scutellum 
  small, 
  ogival 
  ; 
  elytra 
  

   sinuate 
  laterally 
  and 
  moderately 
  attenuate 
  from 
  there 
  towards 
  the 
  

   apex 
  ; 
  pygidium 
  slanting 
  forward 
  in 
  the 
  male, 
  abdomen 
  compressed 
  

   laterally 
  ; 
  hind 
  legs 
  normally 
  robust, 
  anterior 
  tibiae 
  obliquely 
  bi- 
  

   dentate, 
  claws 
  double, 
  unequal, 
  inner 
  one 
  of 
  the 
  anterior 
  legs 
  short, 
  

   robust 
  and 
  cleft, 
  the 
  weaker 
  one 
  of 
  the 
  intermediate 
  one 
  is 
  cleft 
  ; 
  

   apical 
  spur 
  of 
  hind 
  tibiae 
  long. 
  

  

  The 
  characteristic 
  difference 
  between 
  this 
  genus 
  and 
  Platychelus 
  

   is 
  the 
  great 
  length 
  of 
  the 
  antennal 
  club. 
  

  

  COEGA 
  ILLOTA, 
  n. 
  spec. 
  

  

  Male 
  : 
  Black, 
  opaque, 
  club 
  of 
  antennae 
  and 
  tarsi 
  piceous 
  red 
  ; 
  

   elytra 
  with 
  occasionally 
  a 
  broad, 
  lateral 
  reddish 
  band 
  ; 
  head 
  very 
  

   scabrose, 
  clothed 
  with 
  a 
  flavescent 
  pubescence 
  ; 
  prothorax 
  closely 
  

  

  