﻿360 
  

  

  JAMES 
  WATERSTON. 
  

  

  Abdomen 
  with, 
  the 
  first 
  segment 
  occupying 
  three-fourths 
  of 
  the 
  exposed 
  surface, 
  

   with 
  a 
  broad, 
  dim, 
  minutely 
  punctate 
  region 
  bearing 
  microscopic 
  hairs 
  ; 
  the 
  base 
  of 
  

   this 
  dim 
  area 
  extends 
  practically 
  across 
  the 
  suture. 
  Anteriorly 
  and 
  at 
  the 
  sides, 
  

   gleaming 
  metallic 
  blue-green 
  ; 
  the 
  remaining 
  segments 
  considerably 
  telescoped, 
  

   shining 
  black. 
  

  

  Length, 
  1*6 
  mm. 
  ; 
  alar 
  expanse, 
  3 
  mm. 
  

  

  Southern 
  Nigeria 
  : 
  Ibadan, 
  4 
  £?, 
  bred 
  from 
  pupa 
  of 
  a 
  Coccinellid 
  beetle, 
  vii 
  . 
  1913 
  

   (Dr. 
  W. 
  A. 
  Lamborn). 
  

  

  Pleurotropis 
  africana, 
  sp. 
  nov. 
  (figs. 
  2, 
  5, 
  9, 
  12). 
  

  

  A 
  broad-headed 
  black 
  species, 
  differing 
  from 
  the 
  others 
  described 
  in 
  the 
  weak 
  

   lateral 
  keels 
  of 
  the 
  §, 
  and 
  the 
  reduced 
  malar 
  space. 
  

  

  £.- 
  — 
  Head 
  black, 
  with 
  a 
  purplish 
  lustre, 
  extremely 
  broad, 
  much 
  broader 
  than 
  the 
  

   thorax 
  at 
  its 
  widest 
  and 
  equalling 
  the 
  length 
  of 
  the 
  abdomen. 
  Vertex 
  rather 
  long, 
  

   with 
  the 
  face 
  moderately 
  reticulate, 
  the 
  pattern 
  hardly 
  raised. 
  Eye 
  large, 
  extending 
  

  

  Fig. 
  12. 
  Pleurotropis 
  africana, 
  sp. 
  n. 
  ; 
  

   scutellum, 
  metanotum 
  and 
  propodaeum. 
  

  

  almost 
  to 
  the 
  mandibles 
  and 
  narrowed 
  ventrally 
  ; 
  thus 
  the 
  malar 
  space 
  is 
  practically 
  

   absent, 
  but 
  the 
  genae 
  are 
  correspondingly 
  increased. 
  Mandibles 
  (fig. 
  5, 
  a) 
  deeply 
  

   cleft 
  into 
  two 
  equal 
  teeth, 
  the 
  edge 
  of 
  the 
  inner 
  of 
  which 
  is 
  not 
  serrate. 
  

  

  Antennae 
  (fig. 
  2, 
  a) 
  with 
  the 
  joints 
  of 
  the 
  funicle 
  remarkably 
  bead-like, 
  subequal 
  — 
  

   the 
  middle 
  one, 
  if 
  any, 
  the 
  shortest 
  — 
  broadening 
  distinctly 
  towards 
  the 
  club, 
  joint 
  

   six 
  being 
  broader 
  than 
  long 
  ; 
  all 
  joints 
  strongly 
  shining, 
  dark 
  metallic 
  green. 
  

   Length, 
  barely 
  -5 
  mm. 
  

  

  