﻿Manchester 
  Memoirs, 
  Vol. 
  xliii. 
  ( 
  1 
  899), 
  No. 
  3. 
  55 
  

  

  diverging 
  at 
  the 
  apices. 
  The 
  hinder 
  tarsi 
  are 
  slightly 
  

   spined. 
  

  

  AULACUS 
  BITUBERCULATUS, 
  Sp. 
  nov. 
  

  

  Niger; 
  pronoto 
  mesonotoque 
  cum 
  scutello 
  rufis; 
  alis 
  

   hyalinis, 
  fusco-bifasciatis. 
  ? 
  . 
  

  

  Long. 
  15 
  ; 
  terebra 
  14 
  mm. 
  

  

  This 
  genus 
  is 
  an 
  addition 
  to 
  the 
  Hymenoptera 
  of 
  

   Continental 
  India, 
  although 
  two 
  species 
  are 
  known 
  from 
  

   Ceylon. 
  These 
  differ 
  in 
  many 
  respects 
  from 
  A. 
  bituber- 
  

   culatus. 
  

  

  Antennae 
  black, 
  brownish 
  towards 
  the 
  apex 
  on 
  the 
  

   under 
  side 
  ; 
  the 
  third 
  joint 
  of 
  the 
  length 
  of 
  the 
  basal 
  two 
  

   united 
  ; 
  the 
  fourth 
  as 
  long 
  as 
  the 
  second 
  and 
  third 
  

   united. 
  Head 
  black 
  ; 
  the 
  vertex 
  shining, 
  bearing 
  shallow, 
  

   scattered 
  punctures 
  ; 
  sparsely 
  pilose 
  ; 
  the 
  vertex 
  near 
  the 
  

   edge 
  behind 
  has 
  on 
  either 
  side 
  a 
  distinct, 
  bluntly 
  triangular 
  

   tubercle. 
  Front 
  sparsely 
  covered 
  with 
  short, 
  white 
  hair 
  ; 
  

   a 
  short, 
  indistinct 
  keel 
  in 
  front 
  of 
  the 
  ocelli 
  ; 
  the 
  clypeus 
  

   closely, 
  shallowly, 
  irregularly 
  punctured 
  ; 
  fringed 
  at 
  the 
  

   apex 
  with 
  long, 
  white 
  hair. 
  Mandibles 
  piceous 
  in 
  the 
  

   middle, 
  the 
  base 
  opaque, 
  closely 
  rugose. 
  Thorax 
  coarsely 
  

   rugose 
  ; 
  the 
  propleurae, 
  pronotum, 
  mesonotum 
  and 
  scutel- 
  

   lum 
  rufous 
  ; 
  the 
  middle 
  of 
  the 
  mesonotum 
  coarsely, 
  trans- 
  

   versely 
  striated. 
  The 
  sides 
  of 
  the 
  scutellum 
  smooth 
  ; 
  the 
  

   middle 
  with 
  a 
  few, 
  widely 
  separated, 
  stout, 
  transverse 
  

   striations 
  ; 
  the 
  apex 
  of 
  the 
  scutellum 
  is 
  black. 
  Median 
  

   segment 
  stoutly 
  irregularly 
  reticulated. 
  Propleurae 
  irregu- 
  

   larly 
  and 
  strongly 
  rugose 
  ; 
  the 
  mesopleurae 
  opaque, 
  irregu- 
  

   larly, 
  and 
  not 
  very 
  strongly, 
  rugose 
  below 
  ; 
  the 
  oblique 
  

   hollow 
  over 
  the 
  middle 
  coxae 
  striated, 
  more 
  distinct 
  on 
  the 
  

   lower 
  than 
  on 
  the 
  upper 
  part 
  ; 
  the 
  middle 
  behind 
  

   smooth, 
  the 
  upper 
  irregularly 
  reticulated 
  ; 
  the 
  lower 
  part 
  

   stoutly 
  irregularly 
  striated. 
  Metapleurae 
  rugose, 
  below 
  

  

  