﻿6 
  Cameron, 
  Hymenoptera 
  Orioitalia. 
  

  

  by 
  side 
  near 
  the 
  middle. 
  Head 
  not 
  developed 
  behind 
  

   the 
  eyes. 
  Mandibles 
  bidentate. 
  Mesonotum 
  trilobate, 
  

   the 
  sutures 
  deep. 
  Scutellum 
  large, 
  convex. 
  Metathorax 
  

   nearly 
  as 
  long 
  as 
  the 
  pro- 
  and 
  mesothorax 
  united 
  ; 
  the 
  

   apex 
  with 
  an 
  oblique 
  slope 
  ; 
  before 
  the 
  middle 
  is 
  a 
  

   transverse 
  keel 
  ; 
  its 
  spiracles 
  large, 
  linear, 
  rounded 
  at 
  the 
  

   base 
  and 
  apex. 
  Legs 
  longish, 
  slender 
  ; 
  the 
  tarsi 
  spinose 
  ; 
  

   the 
  claws 
  simple. 
  Wings 
  reaching 
  to 
  the 
  middle 
  of 
  the 
  

   abdomen 
  ; 
  the 
  areolet 
  smaller, 
  about 
  three 
  times 
  longer 
  

   than 
  wide, 
  the 
  recurrent 
  nervure 
  is 
  received 
  shortly 
  

   beyond 
  the 
  middle, 
  the 
  transverse 
  median 
  behind 
  the 
  

   transverse 
  basal. 
  Petiole 
  long 
  and 
  slender, 
  the 
  apical 
  

   half 
  distinctly, 
  but 
  not 
  much, 
  dilated 
  ; 
  its 
  apex 
  obliquely 
  

   depressed 
  ; 
  it 
  is 
  longer 
  than 
  the 
  second 
  segment, 
  which 
  

   has 
  an 
  oblique 
  depression 
  on 
  either 
  side 
  at 
  the 
  base 
  ; 
  the 
  

   spiracles 
  are 
  small 
  and 
  round, 
  and 
  are 
  placed 
  between 
  

   the 
  middle 
  and 
  the 
  apex. 
  The 
  apex 
  of 
  the 
  abdomen 
  is 
  

   straight 
  up 
  and 
  down 
  as 
  in 
  Pimpla, 
  the 
  ovipositor 
  arising 
  

   from 
  its 
  lower 
  side, 
  received 
  in 
  a 
  vertical 
  groove 
  or 
  

   cleft, 
  and 
  standing 
  upwards 
  above 
  the 
  dorsum 
  of 
  the 
  

   abdomen. 
  The 
  ventral 
  surface 
  has 
  a 
  central 
  fold. 
  

  

  The 
  characteristic 
  features 
  of 
  this 
  genus 
  are 
  the 
  front 
  

   with 
  the 
  two 
  spines, 
  the 
  clypeus 
  distinctly 
  separated 
  from 
  

   the 
  face, 
  the 
  small, 
  elongated 
  areolet 
  and 
  the 
  long 
  

   abdomen. 
  The 
  antenna; 
  are 
  stouter 
  and 
  the 
  metathoracic 
  

   spiracles 
  are 
  longer 
  than 
  in 
  either 
  Cryptus 
  or 
  Mesostenus. 
  

  

  CERATOCRYPTUS 
  BITUBERCULATUS, 
  Sp 
  nov. 
  

  

  Niger; 
  albo-maculatus 
  ; 
  mesonolo 
  laevo; 
  pedibus 
  rufis 
  ; 
  

   coxis 
  trochanteribusque 
  anterioribus 
  albis 
  ; 
  coxis 
  posticis 
  

   nigro-maculatis 
  ; 
  abdomine 
  qitam 
  tJiorace 
  duplo 
  longiorc 
  ; 
  

   alls 
  fulvo-hyaliniSi 
  stigmate 
  nigro. 
  $ 
  . 
  

  

  Long. 
  19 
  mm. 
  ; 
  terebra 
  11 
  mm. 
  

  

  Antenna: 
  black 
  ; 
  the 
  scape 
  in 
  the 
  middle 
  above, 
  and 
  

  

  