﻿Hymenoptera 
  Orie7italis. 
  39 
  

  

  abdominal 
  segments 
  i 
  — 
  4, 
  white 
  ; 
  legs 
  red, 
  the 
  coxae, 
  

   trochanters, 
  four 
  posterior 
  tarsi 
  and 
  the 
  four 
  posterior 
  tibia; 
  

   behind, 
  black 
  ; 
  wings 
  clear 
  hyaline. 
  Eyes 
  wide 
  apart, 
  

   straight, 
  a 
  little 
  diverging 
  beneath. 
  Antennae 
  dull 
  rufous, 
  

   the 
  scape 
  more 
  or 
  less 
  fuscous 
  ; 
  the 
  third 
  joint 
  a 
  very 
  little 
  

   longer 
  than 
  the 
  fourth. 
  Head 
  closely 
  punctured, 
  from 
  a 
  

   little 
  below 
  the 
  ocelli 
  closely 
  covered 
  with 
  pale 
  silvery 
  hair. 
  

   Ocelli 
  in 
  a 
  curve, 
  the 
  posterior 
  separated 
  from 
  the 
  eyes 
  by 
  

   the 
  length 
  of 
  the 
  second, 
  and 
  from 
  each 
  other 
  by 
  the 
  length 
  

   of 
  the 
  second 
  and 
  third 
  antennal 
  joints 
  united. 
  Apexofcly- 
  

   peus 
  transverse; 
  mandibles 
  obscure 
  rufous. 
  Thorax 
  shining, 
  

   punctured, 
  the 
  pleurae 
  more 
  closely 
  than 
  the 
  mesonotum, 
  

   sparsely 
  covered 
  with 
  a 
  short 
  silvery 
  pubescence 
  ; 
  the 
  oblique 
  

   furrow 
  on 
  the 
  mesopleurae 
  broad 
  and 
  shallow. 
  Scutellum 
  

   convex, 
  sparsely 
  covered 
  with 
  large 
  round 
  punctures, 
  the 
  

   centre 
  keeled, 
  but 
  not 
  strongly, 
  the 
  apex 
  incised 
  in 
  the 
  middle. 
  

   The 
  lateral 
  plates 
  large, 
  curved 
  laterally 
  and 
  ending 
  in 
  a 
  

   stout, 
  triangular 
  tooth 
  ; 
  the 
  central 
  lamina 
  broader 
  than 
  

   long, 
  the 
  sides 
  rounded, 
  narrowed 
  at 
  base 
  and 
  apex, 
  the 
  

   apex 
  with 
  a 
  broad, 
  shallow 
  incision. 
  Abdomen 
  more 
  iinely 
  

   and 
  closely 
  punctured 
  than 
  the 
  thorax 
  ; 
  the 
  ventral 
  surface 
  

   with 
  the 
  punctuation 
  much 
  sparser 
  ; 
  the 
  segments 
  at 
  the 
  

   apex 
  narrowly 
  edged 
  with 
  dirty 
  white. 
  Tibiae 
  and 
  tarsi 
  

   bearing 
  a 
  silvery 
  white 
  pubescence 
  ; 
  the 
  tibial 
  and 
  tarsal 
  

   spines 
  white. 
  The 
  recurrent 
  nervure 
  is 
  received 
  almost 
  in 
  

   the 
  centre 
  of 
  the 
  radial 
  cellule. 
  Length 
  nearly 
  9 
  mm. 
  

  

  Most 
  nearly 
  related 
  to 
  O. 
  sqiiamosus 
  ; 
  but 
  that 
  species 
  

   may 
  be 
  known 
  from 
  it 
  by 
  the 
  eyes 
  being 
  rounded, 
  not 
  

   straight, 
  and 
  meeting 
  much 
  closer 
  together, 
  by 
  the 
  blackish 
  

   antennae, 
  by 
  the 
  central 
  lamina 
  being 
  rufous 
  and 
  longer 
  

   than 
  broad 
  (see 
  PI. 
  X., 
  f. 
  24). 
  

  

  --^ 
  OXYBELUS 
  FLAVIPES, 
  Sp 
  tlOV. 
  

   Head 
  closely 
  punctured, 
  the 
  face, 
  cheeks 
  and 
  front 
  

   densely 
  covered 
  with 
  golden 
  pubescence 
  ; 
  the 
  clypeus 
  in 
  

  

  