﻿14 
  Eev. 
  T. 
  A. 
  Marshall's 
  Monograjih 
  of 
  

  

  Nees 
  V. 
  Esenbeck 
  described 
  the 
  single 
  species 
  of 
  this 
  

   genus 
  as 
  a 
  Bracon, 
  and 
  Wesmael 
  founded 
  for 
  it 
  a 
  new 
  

   genus 
  Diraijhus, 
  which 
  he 
  included 
  among 
  the 
  Cijclo- 
  

   stomi 
  ; 
  the 
  oral 
  aperture, 
  however 
  (if 
  it 
  can 
  be 
  so 
  called), 
  

   is 
  very 
  different 
  from 
  that 
  of 
  the 
  Braconoid 
  genera, 
  being 
  

   merely 
  a 
  transverse 
  slit 
  caused 
  by 
  the 
  clypeus 
  not 
  

   touching 
  the 
  mandibles, 
  a 
  structure 
  characteristic 
  of 
  

   many 
  Opiids, 
  in 
  accordance 
  with 
  which 
  Haliday 
  referred 
  

   his 
  genus 
  Gnamptodon 
  to 
  its 
  present 
  place. 
  

  

  1. 
  Gnamptodon 
  immiliOi^eo,^. 
  (PI. 
  11. 
  , 
  fig. 
  2, 
  ?). 
  

  

  Bracon 
  immilio, 
  Nees, 
  Mon., 
  i., 
  90, 
  ^ 
  2 
  . 
  

  

  G. 
  pumilio, 
  Hal., 
  Ent. 
  Mag., 
  iv., 
  220, 
  <? 
  ? 
  ; 
  fig. 
  d 
  

   (wing). 
  

  

  Diraphiis 
  pygmceus, 
  Wesm., 
  Nouv. 
  Mem. 
  Ac. 
  Brux., 
  

   1838, 
  p. 
  90, 
  ^; 
  pi. 
  fig. 
  f 
  (abdomen). 
  

  

  Black, 
  shining 
  ; 
  belly 
  testaceous 
  ; 
  oral 
  parts, 
  4 
  or 
  5 
  basal 
  joints 
  

   of 
  antennae, 
  and 
  legs, 
  yellow 
  ; 
  claws 
  fuscous. 
  Head 
  minutely 
  

   punctulate 
  ; 
  middle 
  of 
  the 
  face 
  smooth. 
  Antennae 
  about 
  as 
  long 
  

   as 
  the 
  body, 
  filiform, 
  19 
  — 
  23-jointed. 
  AVings 
  hyaline, 
  squamula 
  

   and 
  nervures 
  yellow, 
  the 
  latter 
  very 
  pale, 
  mostly 
  subobsolete 
  ; 
  

   stigma 
  fusco-testaceous 
  ; 
  podiscoidal 
  areolet 
  open 
  at 
  the 
  extremity. 
  

   (J 
  ? 
  . 
  Length, 
  f 
  — 
  1 
  ; 
  wings, 
  1^ 
  — 
  2^ 
  lines. 
  

  

  Not 
  common 
  ; 
  taken 
  by 
  Nees 
  in 
  Franconia 
  ; 
  by 
  Hali- 
  

   day 
  in 
  the 
  Hebrides 
  and 
  Ireland, 
  on 
  leaves 
  of 
  Betula 
  

   cdha 
  ; 
  by 
  Wesmael 
  in 
  Belgium 
  ; 
  found 
  sparingly 
  in 
  

   England 
  ; 
  I 
  have 
  seen 
  specimens 
  in 
  Fitch's 
  and 
  Bignell's 
  

   collections, 
  and 
  possess 
  one 
  myself, 
  from 
  which 
  the 
  

   figure 
  is 
  taken. 
  Katzeburg 
  (Ichn. 
  d. 
  Forst., 
  iii., 
  176) 
  

   notices 
  a 
  Bracon 
  bred 
  from 
  Stigmonota 
  dorsana, 
  F., 
  

   which 
  he 
  refers 
  conjecturally 
  to 
  Wesmael's 
  Dirajjhus 
  ,- 
  

   but 
  this 
  gives 
  no 
  certain 
  information, 
  for 
  the 
  terebra 
  of 
  

   this 
  insect 
  was 
  half 
  as 
  long 
  as 
  the 
  abdomen 
  ; 
  Eatzeburg 
  

   compares 
  it 
  to 
  Bracon 
  tiUdnnis, 
  Wesm. 
  ; 
  it 
  was 
  not, 
  

   however, 
  a 
  genuine 
  Bracon. 
  

  

  iii. 
  Hedylus, 
  n. 
  g. 
  

   Statui'a 
  gracilis, 
  autennis 
  peJibusque 
  elongatis. 
  Clypeiis 
  apice 
  

   elevatus 
  ; 
  gense 
  dilatte 
  ; 
  palpi 
  luaxillares 
  longissinii, 
  labiales 
  4- 
  

   articuli. 
  Mesothoracis 
  sulculi 
  distincti. 
  Mesoplem-ae 
  sulco 
  cre- 
  

   nato. 
  Stigma 
  fere 
  ovale, 
  radium 
  ultra 
  medium 
  tmilteus 
  ; 
  areola 
  

   cubitalis 
  2da 
  parva, 
  transversa, 
  latere 
  externo 
  obsoleto, 
  angulo 
  

  

  