﻿194 
  Cameron, 
  Hymenoptera 
  Orientalia. 
  

  

  small, 
  triangular, 
  transverse 
  at 
  the 
  base 
  ; 
  strongly 
  punc- 
  

   tured. 
  Scutellum 
  not 
  much 
  raised, 
  its 
  sides 
  not 
  carinate 
  ; 
  

   its 
  base 
  depressed 
  ; 
  the 
  postscutellum 
  bifoveate 
  at 
  the 
  base. 
  

   Median 
  segment 
  more 
  or 
  less 
  areolated 
  ; 
  its 
  spiracles 
  

   large, 
  linear. 
  Legs 
  stout, 
  as 
  in 
  Pimpla 
  ; 
  the 
  calcaria 
  

   short 
  ; 
  the 
  claws 
  long, 
  curved, 
  simple. 
  Wings 
  without 
  an 
  

   areolet 
  ; 
  the 
  transverse 
  cubital 
  nervure 
  interstitial 
  with 
  

   the 
  recurrent 
  ; 
  the 
  transverse 
  basal 
  nervure 
  also 
  inter- 
  

   stitial 
  ; 
  the 
  first 
  recurrent 
  nervure 
  is 
  received 
  in 
  the 
  basal 
  

   third 
  of 
  the 
  cellule, 
  much 
  nearer 
  the 
  base 
  than 
  in 
  Pimpla. 
  

   Abdomen 
  stout 
  ; 
  the 
  petiole 
  not 
  so 
  stout 
  as 
  in 
  Pimpla 
  

   and 
  of 
  variable 
  form 
  ; 
  the 
  spiracles 
  are 
  placed 
  shortly 
  

   before 
  the 
  middle 
  ; 
  the 
  segments 
  smooth 
  and 
  shining, 
  

   neither 
  punctured 
  nor 
  striated, 
  and 
  without 
  depressions 
  ; 
  

   the 
  hypopygium 
  large, 
  cultriform 
  ; 
  ovipositor 
  elongate. 
  

   The 
  genus 
  as 
  here 
  defined 
  falls 
  into 
  two 
  groups. 
  

  

  a. 
  Middle 
  lobe 
  of 
  the 
  mesonotum 
  distinctly 
  raised 
  above 
  

  

  the 
  lateral 
  ones 
  ; 
  the 
  median 
  segment 
  distinctly 
  

   transversely 
  striated 
  or 
  reticulated, 
  

   i. 
  Body 
  black. 
  

  

  Legs 
  entirely 
  black 
  ; 
  the 
  antenna; 
  not 
  annulated 
  

   with 
  white. 
  M. 
  nigricans. 
  

  

  Legs 
  for 
  the 
  greater 
  part 
  fulvous 
  and 
  yellow 
  ; 
  

   the 
  antennae 
  annulated 
  with 
  white. 
  

  

  M. 
  varipes. 
  

   2. 
  Body 
  and 
  legs 
  rufuous 
  ; 
  the 
  hinder 
  legs 
  black. 
  

  

  Af. 
  ferrugincus. 
  

  

  b. 
  Middle 
  lobe 
  of 
  the 
  mesonotum 
  not 
  distinctly 
  raised 
  

  

  above 
  the 
  lateral 
  ones, 
  the 
  median 
  segment 
  not 
  dis- 
  

   tinctly 
  reticulated 
  or 
  striated. 
  M. 
  luteus. 
  

  

  MACROGASTER 
  NIGRICANS, 
  Sp. 
  1IOV. 
  

  

  Niger; 
  orbitis 
  oatlorum 
  antice 
  alb 
  is 
  ; 
  alls 
  hyalinis, 
  

   apice 
  fu 
  ma 
  lis 
  . 
  $ 
  . 
  

  

  Long, 
  n, 
  ; 
  terebra 
  12 
  mm. 
  

  

  