﻿Manchester 
  Memoirs, 
  Vol. 
  xlvii. 
  (1903), 
  No. 
  1 
  4. 
  

  

  XIV. 
  Hymenoptera 
  Orientalia, 
  or 
  Contributions 
  to 
  the 
  

   Knowledge 
  of 
  the 
  Hymenoptera 
  of 
  the 
  Oriental 
  

   Zoological 
  Region. 
  Part 
  ^X. 
  

  

  The 
  Hymenoptera 
  of 
  the 
  Khasia 
  Hills. 
  Part 
  II. 
  

   Section 
  2. 
  

  

  By 
  P. 
  Cameron. 
  

  

  ^Communicated 
  by 
  /. 
  Cosmo 
  Melvill, 
  M.A., 
  J^.L.S.] 
  

   Received 
  October 
  10th 
  , 
  read 
  October 
  31st, 
  /Scjc;. 
  

  

  CRYPT 
  IN 
  A.. 
  

  

  SlLSILA, 
  gen. 
  nov. 
  

  

  Areolet 
  small, 
  narrow, 
  twice 
  longer 
  than 
  broad 
  ; 
  the 
  

   transverse 
  cubital 
  nervures 
  are 
  faint 
  ; 
  the 
  recurrent 
  nervure 
  

   is 
  received 
  in 
  the 
  middle 
  ; 
  the 
  transverse 
  median 
  nervure 
  

   is 
  received 
  shortly 
  behind 
  the 
  transverse 
  basal. 
  Eyes 
  

   large, 
  parallel, 
  reaching 
  near 
  to 
  the 
  base 
  of 
  the 
  mandibles. 
  

   Clypeus 
  roundly 
  convex, 
  its 
  apex 
  transverse 
  in 
  the 
  middle. 
  

   Mandibles 
  with 
  two 
  large 
  apical 
  teeth. 
  Parapsidal 
  

   furrows 
  deep 
  ; 
  the 
  base 
  of 
  the 
  thorax 
  transverse 
  ; 
  its 
  sides 
  

   tuberculate. 
  Metathorax 
  longish 
  ; 
  the 
  metanotum 
  with 
  a 
  

   gradually 
  rounded 
  slope 
  ; 
  closely 
  punctured 
  throughout 
  ; 
  

   there 
  is 
  only 
  one 
  transverse 
  keel 
  ; 
  its 
  spiracles 
  about 
  

   three 
  times 
  longer 
  than 
  broad, 
  rounded 
  at 
  the 
  base 
  and 
  

   apex. 
  Legs 
  normal 
  ; 
  the 
  hinder 
  tarsi 
  spinose. 
  Petiole 
  

   not 
  much 
  longer 
  than 
  the 
  second 
  segment, 
  becoming 
  

   .gradually 
  wider 
  (but 
  not 
  much) 
  towards 
  the 
  apex; 
  the 
  

   spiracles 
  are 
  placed 
  at 
  the 
  base 
  of 
  the 
  apical 
  third 
  ; 
  its 
  curve 
  

   is 
  not 
  very 
  distinct 
  ; 
  the 
  gastrocceli 
  are 
  shallow, 
  triangu- 
  

   larly 
  narrowed 
  at 
  the 
  base 
  ; 
  the 
  apical 
  segment 
  obliquely 
  

  

  July 
  30th, 
  1903. 
  

  

  