﻿Manchester 
  Memoirs, 
  Vol. 
  xliii. 
  ( 
  1 
  899), 
  No. 
  3. 
  S7 
  

  

  entirely; 
  the 
  transverse 
  median 
  nervure 
  is 
  received 
  shortly 
  

   in 
  front 
  of 
  the 
  transverse 
  basal. 
  Abdomen 
  shorter 
  than 
  

   the 
  thorax; 
  the 
  petiole 
  large, 
  longer 
  than 
  the 
  second 
  

   segment, 
  not 
  much 
  narrowed 
  towards 
  the 
  base. 
  Legs 
  

   elongate, 
  the 
  hinder 
  coxae 
  large 
  ; 
  the 
  hinder 
  femora 
  with 
  a 
  

   sharp 
  tooth 
  on 
  the 
  under 
  side 
  near 
  the 
  apex 
  ; 
  the 
  lower 
  

   side 
  behind 
  the 
  tooth 
  with 
  a 
  rough 
  edge. 
  

  

  This 
  genus 
  appears 
  to 
  me 
  to 
  be 
  a 
  valid 
  one 
  ; 
  possessing 
  

   four 
  good 
  characters 
  whereby 
  it 
  may 
  be 
  separated 
  from 
  

   Aulacus, 
  namely 
  (1) 
  by 
  the 
  presence 
  of 
  a 
  stout 
  horn 
  on 
  

   the 
  front, 
  which 
  is 
  also 
  more 
  depressed 
  in 
  the 
  centre 
  and 
  

   having 
  the 
  depression 
  margined 
  laterally 
  by 
  a 
  blunt 
  keel, 
  

   (2) 
  the 
  pyramidal 
  scutellum, 
  (3) 
  the 
  much 
  broader 
  and 
  

   shorter 
  petiole, 
  and 
  (4) 
  the 
  spined 
  hinder 
  femora. 
  Further 
  

   points 
  of 
  differences 
  are 
  — 
  the 
  almost 
  unidentate 
  mandi- 
  

   bles, 
  which 
  are 
  also 
  shorter 
  and 
  blunter 
  ; 
  the 
  antennae 
  

   placed 
  higher 
  up 
  on 
  the 
  face, 
  being 
  situated 
  opposite 
  the 
  

   middle 
  of 
  the 
  eyes; 
  the 
  larger, 
  hollowed 
  postscutellum 
  ; 
  

   the 
  more 
  elongated 
  metathorax; 
  the 
  more 
  elongated 
  hinder 
  

   coxas 
  ; 
  and 
  the 
  shorter 
  abdomen. 
  

  

  The 
  tuberculated 
  head 
  and 
  the 
  spined 
  femora 
  shows 
  

   some 
  relationship 
  with 
  MegiscJius, 
  from 
  which 
  it 
  is 
  very 
  

   different 
  in 
  other 
  respects. 
  

  

  Wroughtonia 
  CORNUTA, 
  Sp. 
  nov. 
  

  

  Nigra, 
  abdominis 
  basi 
  flavo 
  ; 
  pedibus 
  fulvis, 
  apice 
  

   femorum 
  posticorum 
  apiceque 
  tibiarum 
  posticarum 
  late 
  

   nigris 
  ; 
  tarsis 
  posticis 
  albis 
  ; 
  alls 
  hyalinis, 
  stigmate 
  nervisque 
  

   nigris. 
  $ 
  . 
  

  

  Long. 
  8-9 
  ; 
  terebra 
  9 
  mm. 
  

  

  The 
  basal 
  two 
  joints 
  of 
  the 
  antennae 
  rufous 
  beneath 
  ; 
  

   the 
  base 
  of 
  the 
  flagellum 
  black, 
  the 
  other 
  joints 
  broken 
  

   off. 
  Head 
  black, 
  the 
  front 
  and 
  vertex 
  shining, 
  smooth, 
  

   glabrous 
  ; 
  the 
  face 
  rugosely 
  punctured 
  ; 
  in 
  the 
  centre 
  

  

  