﻿106 
  CAMERON, 
  Hymenoptera 
  Orientalia. 
  

  

  the 
  recurrent 
  nervure 
  is 
  received 
  in 
  front 
  of 
  the 
  transverse 
  

   cubital, 
  almost 
  touching 
  it 
  ; 
  its 
  upper 
  half 
  is 
  broadly 
  

   curved, 
  its 
  lower 
  straight, 
  oblique; 
  the 
  curved 
  part 
  is 
  

   broadly 
  bullated 
  at 
  the 
  top 
  and 
  bottom 
  ; 
  the 
  second 
  trans- 
  

   verse 
  cubital 
  nervure 
  is 
  largely 
  bullated 
  at 
  the 
  bottom; 
  

   the 
  transverse 
  median 
  nervure 
  is 
  received 
  in 
  front 
  of 
  the 
  

   transverse 
  median, 
  not 
  touching 
  it. 
  The 
  petiole 
  becomes 
  

   gradually 
  dilated 
  from 
  the 
  base 
  to 
  the 
  apex; 
  the 
  base 
  has 
  

   a 
  semicircular 
  depression, 
  inside 
  of 
  which 
  are 
  a 
  few 
  

   longitudinal 
  striations 
  ; 
  beyond 
  this 
  is 
  a 
  shallow, 
  strongly 
  

   aciculated 
  depression 
  which 
  becomes 
  gradually 
  narrowed 
  

   to 
  the 
  apex 
  ; 
  the 
  second 
  segment 
  is 
  distinctly 
  furrowed 
  on 
  

   the 
  basal 
  half 
  at 
  the 
  sides; 
  the 
  gastrocceli 
  rufous, 
  shallow, 
  

   finely 
  striated. 
  

  

  Aithris, 
  gen. 
  nov. 
  

  

  Head 
  buccate. 
  Eyes 
  large, 
  not 
  converging 
  below 
  ; 
  

   reaching 
  near 
  to, 
  but 
  still 
  distant 
  from, 
  the 
  base 
  of 
  the 
  

   mandibles 
  ; 
  above, 
  on 
  the 
  inner 
  side, 
  there 
  is 
  a 
  distinct 
  

   rounded 
  incision. 
  The 
  clypeus 
  not 
  defined 
  from 
  the 
  face; 
  

   the 
  mandibles 
  have 
  two 
  stout 
  apical 
  teeth. 
  Behind, 
  the 
  

   head 
  is 
  not 
  much 
  developed 
  and 
  is 
  obliquely 
  narrowed 
  ; 
  the 
  

   occiput 
  immarginate. 
  Scutellum 
  flat 
  ; 
  the 
  sides 
  stoutly 
  

   keeled 
  to 
  shortly 
  beyond 
  the 
  middle; 
  there 
  are 
  two 
  foveae 
  

   at- 
  the 
  base 
  of 
  the 
  post-scutellum. 
  Metathoracic 
  spiracles 
  

   large, 
  linear 
  ; 
  outside 
  them 
  is 
  a 
  stout, 
  obliquely 
  bent 
  keel. 
  

   Legs 
  stout, 
  the 
  femora 
  thickened 
  ; 
  the 
  calcaria 
  short 
  and 
  

   thick 
  ; 
  the 
  last 
  joint 
  of 
  the 
  hinder 
  tarsi 
  as 
  long 
  as 
  the 
  

   preceding 
  three 
  joints 
  united 
  ; 
  the 
  claws 
  stout, 
  simple 
  ; 
  

   there 
  are 
  two 
  spurs 
  on 
  the 
  hinder 
  tibiae. 
  Wings 
  without 
  

   an 
  areolet 
  ; 
  the 
  first 
  abscissa 
  of 
  the 
  radial 
  nervure 
  straight, 
  

   oblique 
  ; 
  the 
  second 
  curved 
  upwards 
  at 
  the 
  base 
  ; 
  the 
  

   recurrent 
  nervure 
  is 
  curved 
  and 
  is 
  almost 
  interstitial 
  with 
  

   the 
  transverse 
  cubital 
  ; 
  the 
  transverse 
  median 
  nervure 
  is 
  

  

  