﻿Manchester 
  Memoirs, 
  Vol. 
  xli. 
  (1897), 
  No. 
  13. 
  19 
  

  

  shagreened 
  and 
  with 
  four 
  irregular 
  longitudinal 
  keels; 
  the 
  

   oblique 
  apex 
  shagreened. 
  Propleurse 
  shining 
  ; 
  the 
  meso- 
  

   pleura 
  shining 
  above, 
  shagreened 
  below 
  ; 
  the 
  top 
  pro- 
  

   jecting, 
  oblique 
  ; 
  a 
  keel 
  runs 
  down 
  the 
  base 
  from 
  the 
  

   tubercles 
  ; 
  the 
  metapleurse 
  closely 
  longitudinally 
  strio- 
  

   lated. 
  Legs 
  shining, 
  sparsely 
  haired 
  ; 
  the 
  base 
  of 
  the 
  

   hind 
  spurs 
  thickly 
  covered 
  with 
  stiff 
  pale 
  hairs. 
  Wings- 
  

   clear 
  hyaline 
  ; 
  the 
  nervures 
  blackish 
  ; 
  the 
  first 
  transverse 
  

   cubital 
  is 
  sharply 
  elbowed 
  from 
  a 
  little 
  below 
  the 
  middle 
  

   towards 
  the 
  apex 
  of 
  the 
  cellule, 
  the 
  second 
  straight, 
  the 
  

   third 
  curved 
  roundly 
  toward 
  the 
  base 
  of 
  the 
  cellule 
  ; 
  the 
  

   first 
  recurrent 
  nervure 
  is 
  received 
  shortly 
  beyond 
  the 
  

   middle 
  of 
  the 
  cellule, 
  the 
  second 
  near 
  the 
  basal 
  third. 
  

  

  SPHEGIDiE. 
  

  

  DiODONTUS 
  STRIOLATUS, 
  Sp. 
  HOV. 
  (PI. 
  l6, 
  f. 
  3). 
  

  

  Niger, 
  mandibulis, 
  tegidis, 
  geniculis, 
  tibiis 
  iarsisque 
  

   flavis 
  ; 
  alis 
  hyalinis, 
  nervis 
  stigmateque 
  fiiscis. 
  6. 
  Long, 
  

   fere 
  5 
  mm. 
  

  

  Hab. 
  Lahore 
  {Rothney). 
  

  

  Antennae 
  entirely 
  black, 
  almost 
  bare 
  ; 
  the 
  apex 
  of 
  the 
  

   scape 
  fuscous. 
  Head 
  shining, 
  the 
  front 
  and 
  vertex 
  with 
  

   fine, 
  distinctly-separated 
  punctures 
  ; 
  mandibles 
  yellow, 
  

   the 
  extreme 
  base 
  black, 
  the 
  teeth 
  piceous-black; 
  the 
  palpi 
  

   yellow; 
  the 
  clypeus 
  projecting, 
  roundly 
  and 
  deeply 
  incised 
  

   in 
  the 
  middle. 
  Thorax 
  shining, 
  faintly 
  aciculated 
  above 
  ; 
  

   the 
  propleurse 
  with 
  stout, 
  distinctly 
  separated 
  striae 
  ; 
  the 
  

   apical 
  half 
  of 
  the 
  mesopleuras 
  closely 
  longitudinally 
  

   striated, 
  the 
  striations 
  becoming 
  closer 
  together 
  at 
  the 
  

   apex 
  ; 
  the 
  metapleurae, 
  except 
  at 
  the 
  base 
  beneath, 
  more 
  

   strongly 
  and 
  irregularly 
  striolated. 
  The 
  apex 
  of 
  the 
  four 
  

   front 
  femora, 
  the 
  tibiae 
  and 
  tarsi, 
  testaceous 
  ; 
  the 
  middle 
  

   tibiae 
  infuscated 
  behind; 
  the 
  hinder 
  tibiae 
  blackish 
  ; 
  

   the 
  hinder 
  tarsi 
  infuscated. 
  Wings 
  short, 
  not 
  reaching 
  

  

  