﻿NEW 
  WASPS 
  FROM 
  SOUTHERN 
  NIGERIA 
  — 
  PATE 
  155 
  

  

  pleura 
  and 
  metapleura 
  with 
  coarse, 
  close, 
  variolate 
  punctures. 
  Pro- 
  

   podeum 
  with 
  dorsal 
  and 
  posterior 
  faces 
  coarsely 
  areolate 
  and 
  

   sculptured; 
  lateral 
  carinae 
  well 
  developed, 
  bifurcate 
  below; 
  lateral 
  

   faces 
  microscopically 
  granulose. 
  

  

  Forelegs 
  with 
  femora 
  (fig. 
  16, 
  j) 
  stoutly 
  subfusiform, 
  angulate 
  

   distally 
  below 
  and 
  armed 
  with 
  a 
  long 
  retrorse 
  spine; 
  tibiae 
  flattened 
  

   beneath 
  ; 
  metatarsi 
  distorted-laminate. 
  Middle 
  and 
  hind 
  legs 
  simple, 
  

   the 
  tibiae 
  echinulate 
  on 
  outer 
  faces 
  ; 
  longer 
  hind 
  tibial 
  calcar 
  one-half 
  

   length 
  of 
  hind 
  metatarsi. 
  

  

  Forewings 
  with 
  marginal 
  cell 
  three 
  times 
  as 
  long 
  as 
  wide 
  and 
  

   broadly 
  truncate 
  at 
  apex 
  ; 
  radius 
  with 
  second 
  abscissa 
  eight-tenths 
  the 
  

   length 
  of 
  first 
  abscissa; 
  cubitus 
  with 
  first 
  abscissa 
  almost 
  two-thirds 
  

   (0.65) 
  the 
  length 
  of 
  second 
  abscissa. 
  

  

  Abdomen 
  f 
  ulgid 
  ; 
  with 
  a 
  very 
  inconspicuous 
  vestiture 
  of 
  fine 
  puberu- 
  

   lent 
  silvery 
  hairs. 
  Tergites 
  almost 
  impunctate 
  but 
  with 
  fine 
  micro- 
  

   scopic 
  transverse 
  aciculation. 
  Penult 
  tergite 
  with 
  a 
  few 
  coarse 
  scat- 
  

   tered 
  punctures; 
  last 
  tergite 
  with 
  a 
  subtrapeziform 
  pygidial 
  area, 
  the 
  

   disc 
  coarsely 
  punctate. 
  Sternites 
  practically 
  impunctate; 
  hypopy- 
  

   gium 
  with 
  apex 
  entire. 
  

  

  Allotype. 
  — 
  Female; 
  topotypical. 
  Same 
  data 
  as 
  type. 
  (U. 
  S. 
  Na- 
  

   tional 
  Museum 
  collection.) 
  

  

  FeTiiale. 
  — 
  Length 
  6 
  mm. 
  The 
  following 
  features 
  are 
  solely 
  those 
  

   noteworthy 
  of 
  difference 
  from 
  those 
  given 
  in 
  the 
  foregoing 
  descrip- 
  

   tion 
  of 
  the 
  male 
  (type) 
  : 
  

  

  Livery 
  the 
  same, 
  but 
  base 
  of 
  mandibles 
  yellow. 
  

  

  Head 
  with 
  clypeal 
  lobe 
  essentially 
  the 
  same, 
  the 
  median 
  clypeal 
  

   length 
  one-fourth 
  the 
  vertical 
  eye 
  length. 
  Antennal 
  scapes 
  one-half 
  

   the 
  vertical 
  eye 
  length 
  ; 
  simple, 
  cylindrical, 
  ecarinate 
  ; 
  pedicel 
  simple, 
  

   obterete, 
  four-fifths 
  the 
  length 
  of 
  the 
  first 
  flagellar 
  article 
  ; 
  flagellum 
  

   simple, 
  first 
  two 
  segments 
  subequal 
  in 
  length, 
  ultimate 
  segment 
  twice 
  

   the 
  length 
  of 
  penult 
  article. 
  Ocellocular 
  line 
  almost 
  six 
  -tenths 
  (0.571) 
  

   the 
  postocellar 
  distance. 
  

  

  Thorax 
  and 
  propodeum 
  essentially 
  the 
  same 
  ; 
  the 
  pronotum 
  with 
  an- 
  

   terior 
  margin 
  more 
  strongly 
  carinate 
  ; 
  humeri 
  and 
  pronotal 
  tubercles 
  

   more 
  strongly 
  dentate. 
  

  

  All 
  legs 
  simple. 
  Fore 
  metatarsi 
  flattened, 
  rather 
  wide, 
  and 
  with 
  a 
  

   pecten 
  of 
  short 
  stiff 
  spines. 
  

  

  Abdomen 
  generally 
  as 
  in 
  male, 
  but 
  pygidial 
  area 
  broad, 
  equilaterally 
  

   trigonal, 
  the 
  disc 
  with 
  a 
  few 
  coarse, 
  scattered 
  punctures. 
  Second 
  

   sternite 
  medially 
  with 
  a 
  sharp, 
  transverse, 
  arcuate 
  ridge 
  on 
  each 
  side 
  

   of 
  median 
  line. 
  

  

  This 
  distinctive 
  Nigerian 
  species 
  is 
  known 
  only 
  from 
  the 
  unique 
  pair 
  

   described 
  above. 
  

  

  