﻿40 
  Cameron, 
  Hymenoptera 
  Orioitalia. 
  

  

  whole 
  of 
  the 
  last 
  segment 
  white 
  ; 
  the 
  apical 
  half 
  of 
  the 
  

   petiole 
  depressed 
  laterally, 
  the 
  depression 
  forming 
  almost 
  

   a 
  groove 
  ; 
  the 
  second 
  and 
  third 
  segments 
  are 
  pale 
  

   testaceous. 
  

  

  ODONTOCRYPTUS, 
  gen. 
  nov. 
  

  

  Head 
  transverse 
  ; 
  the 
  eyes 
  large, 
  projecting 
  in 
  front, 
  

   not 
  reaching 
  to 
  the 
  base 
  of 
  the 
  mandibles. 
  Clypeus 
  

   separated 
  from 
  the 
  face 
  ; 
  its 
  apex 
  ending 
  in 
  two 
  stout, 
  

   triangular 
  teeth. 
  Mandibles 
  stoutly 
  bidentate, 
  the 
  upper 
  

   the 
  larger. 
  Mesonotum 
  with 
  the 
  parapsidal 
  furrows 
  com- 
  

   plete. 
  Scutellum 
  flat 
  ; 
  its 
  sides 
  at 
  the 
  base 
  stoutly 
  keeled. 
  

   Median 
  segment 
  completely 
  areolated, 
  and 
  with 
  stout 
  

   spines 
  ; 
  its 
  spiracles 
  small, 
  oval. 
  Petiole 
  longish, 
  dilated, 
  

   but 
  not 
  abruptly, 
  at 
  the 
  apex 
  ; 
  the 
  spiracles 
  small, 
  round. 
  

   Wings 
  large 
  ; 
  the 
  areolet 
  pentangular 
  ; 
  the 
  basal 
  nervure 
  

   interstitial. 
  Legs 
  longish 
  ; 
  the 
  hinder 
  tarsi 
  elongate, 
  

   spinose 
  ; 
  the 
  fore 
  tarsi 
  incised 
  at 
  the 
  base 
  ; 
  the 
  tibiae 
  twisted 
  

   at 
  the 
  apex. 
  Ovipositor 
  exserted. 
  The 
  antennae 
  in 
  the 
  

   9 
  are 
  longer 
  than 
  usual 
  ; 
  the 
  third 
  and 
  fourth 
  joints 
  are 
  

   equal 
  in 
  length. 
  

  

  The 
  noteworthy 
  points 
  of 
  this 
  genus 
  are 
  the 
  stoutly 
  

   bidentate 
  clypeus, 
  stoutly 
  carinate 
  scutellum, 
  unusually 
  

   long 
  and 
  slender 
  antennae, 
  distinctly 
  areolated 
  median 
  

   segment, 
  and 
  small, 
  round, 
  metathoracic 
  spiracles. 
  In 
  form 
  

   it 
  agrees 
  best 
  with 
  the 
  Cryptina, 
  but 
  it 
  differs 
  from 
  that 
  

   group 
  in 
  the 
  areolated 
  median 
  segment 
  ; 
  it 
  comes 
  

   nearer 
  to 
  Hemite/es, 
  but 
  that 
  genus 
  may 
  be 
  known 
  from 
  

   it, 
  apart 
  from 
  its 
  clypeus 
  not 
  being 
  bidentate, 
  by 
  the 
  in- 
  

   complete 
  areolet, 
  by 
  the 
  shorter 
  antenna?, 
  &c. 
  

  

  ODONTOCRYPTUS 
  BIDENTATUS, 
  Sp. 
  710V. 
  

   Niger; 
  late 
  fiavo-maculatus 
  ; 
  antennisnigris, 
  medio 
  albo 
  

   annulato 
  ; 
  pedibus 
  rufo 
  - 
  fulvis, 
  coxis 
  trochanteribusque 
  

  

  