﻿152 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  simple, 
  second 
  segment 
  four-fiftlis 
  the 
  length 
  of 
  first. 
  Clypeus 
  (fig. 
  

   16, 
  m) 
  finely 
  punctiilate, 
  median 
  length 
  almost 
  three-eighths 
  (0.363) 
  

   the 
  vertical 
  eye 
  length; 
  disc 
  flatly 
  tectate, 
  bisected 
  by 
  a 
  low 
  keel 
  which 
  

   ends 
  in 
  the 
  gently 
  declivous, 
  glabrous, 
  polite, 
  impunctate, 
  low 
  trigonal 
  

   bevel 
  of 
  the 
  median 
  lobe, 
  the 
  apical 
  margin 
  of 
  which 
  is 
  truncate 
  

   medially, 
  laterally 
  on 
  each 
  side 
  with 
  two 
  teeth. 
  

  

  Thorax 
  subfulgid; 
  with 
  a 
  thin 
  vestiture 
  of 
  decumbent 
  silvery 
  

   puberulent 
  hair, 
  which 
  is 
  most 
  noticeable 
  on 
  mesopleura. 
  Pronotum 
  

   short, 
  anterior 
  dorsal 
  margin 
  bluntly 
  carinate 
  except 
  medially, 
  humeri 
  

   bluntly 
  dentate, 
  tubercles 
  edentate 
  ; 
  dorsal 
  face 
  traversed 
  by 
  a 
  trans- 
  

   verse 
  foveolate 
  furrow. 
  Mesonotum 
  and 
  scutellum 
  with 
  coarse, 
  scat- 
  

   tered, 
  variolate 
  punctures 
  throughout, 
  the 
  latter 
  with 
  lateral 
  edges 
  

   very 
  weakly 
  margined; 
  postscutellum 
  finely 
  rugidose, 
  simple, 
  without 
  

   laminae 
  or 
  lobes. 
  Mesopleura 
  coarsely 
  rugosopunctate 
  above 
  to 
  finely 
  

   punctate 
  below; 
  metapleura 
  with 
  a 
  few 
  horizontal 
  rugulae. 
  Pro- 
  

   podeum 
  : 
  Dorsal 
  face 
  with 
  a 
  row 
  of 
  large 
  areoles 
  radiating 
  from 
  an- 
  

   terior 
  margin; 
  posterior 
  face 
  with 
  a 
  broad, 
  trigonal 
  discal 
  areole, 
  

   laterad 
  of 
  which 
  the 
  surface 
  is 
  traversed 
  by 
  horizontal 
  rugae; 
  lateral 
  

   carinae 
  well 
  developed 
  below, 
  obsolescent 
  above, 
  simple 
  and 
  not 
  bifur- 
  

   cate 
  below 
  ; 
  lateral 
  faces 
  finely 
  acupunctate. 
  

  

  Legs 
  stout, 
  simple. 
  Fore 
  metatarsi 
  flattened, 
  with 
  a 
  pecten 
  of 
  short, 
  

   stilf 
  spines. 
  Middle 
  and 
  hind 
  tibiae 
  with 
  outer 
  faces 
  spinulose. 
  

   Longer 
  hind 
  tibial 
  calcar 
  eight-tenths 
  the 
  length 
  of 
  hind 
  metatarsus. 
  

  

  Forewings 
  with 
  marginal 
  cell 
  about 
  tliree 
  times 
  as 
  long 
  as 
  broad 
  

   and 
  broadly 
  truncate 
  at 
  apex; 
  both 
  radius 
  and 
  cubitus 
  with 
  second 
  

   abscissae 
  almost 
  eight-tenths 
  (0:78) 
  the 
  length 
  of 
  first 
  abscissae. 
  

  

  Abdomen 
  f 
  ulgid 
  ; 
  with 
  a 
  thin 
  vestiture 
  of 
  decumbent 
  silvery 
  puberu- 
  

   lent 
  hair. 
  Tergites 
  with 
  fine 
  scattered 
  acupunctures 
  and 
  fine 
  micro- 
  

   scopic 
  transverse 
  aciculation; 
  fifth 
  tergite 
  with 
  puncturation 
  slightly 
  

   more 
  distinct 
  than 
  preceding 
  tergite; 
  ultimate 
  tergite 
  with 
  a 
  broad, 
  

   equilaterally 
  trigonal 
  pygidial 
  area, 
  the 
  disc 
  polite, 
  with 
  a 
  few 
  coarse 
  

   punctures. 
  Sternites 
  with 
  fine 
  microscopic 
  cancellate 
  sculpture. 
  

  

  This 
  Nigerian 
  species 
  is 
  known 
  from 
  only 
  the 
  unique 
  female 
  de- 
  

   scribed 
  above. 
  

  

  ENCOPOGNATHUS 
  (ENCOPOGNATHUS) 
  RHODESIANA 
  (Arnold) 
  

  

  T[?iyrcopus] 
  {Encopognatlnis) 
  vhirindensis 
  Arnold, 
  Occ. 
  Pap. 
  Rhodesian 
  Mus., 
  

  

  No. 
  1, 
  p. 
  19, 
  figs. 
  10, 
  10a, 
  1932 
  (5,5; 
  Southern 
  Rhodesia 
  ; 
  Spongweni). 
  

   Encopognathus 
  {Encopoynathus) 
  rhodesiunus 
  Pate, 
  LU)ydia, 
  vol. 
  6, 
  p. 
  75, 
  1943. 
  

  

  The 
  porrect 
  lamelliform 
  frontal 
  tooth, 
  the 
  coarsely 
  punctate 
  first 
  

   two 
  segments 
  of 
  the 
  immaculate 
  black 
  abdomen, 
  and 
  the 
  carinate 
  post- 
  

   scutellum 
  distinguisli 
  this 
  Southern 
  Rhodesian 
  form 
  from 
  all 
  the 
  other 
  

   members 
  of 
  the 
  hraueri 
  group. 
  

  

  