﻿46 
  Eev. 
  T. 
  A. 
  Marshall's 
  Monograph 
  of 
  

  

  in 
  the 
  (^ 
  , 
  not 
  touching 
  the 
  mandibles 
  ; 
  palpi 
  and 
  mandibles 
  rufo- 
  

   testaceous. 
  Antennae 
  longer 
  than 
  the 
  body, 
  28 
  — 
  35-jointed, 
  black, 
  

   with 
  the 
  scape 
  testaceous. 
  Mesothoracic 
  sutures 
  indicated 
  by 
  two 
  

   smooth 
  foveae, 
  not 
  completed 
  posteriorly. 
  A 
  punctiform 
  impression, 
  

   sometimes 
  elongated, 
  before 
  the 
  scutellum. 
  Mesopleurge 
  with 
  a 
  

   rather 
  deep 
  oblong 
  fovea, 
  more 
  or 
  less 
  crenulate 
  or 
  unequal 
  at 
  the 
  

   bottom. 
  Metathorax 
  rugose. 
  Wings 
  hyaline 
  ; 
  squamula 
  flavo- 
  

   testaceous 
  ; 
  nervures 
  and 
  stigma 
  fuscous, 
  the 
  latter 
  elongate- 
  

   triangular 
  or 
  lanceolate, 
  proportionally 
  broader 
  in 
  large 
  specimens; 
  

   radial 
  areolet 
  reaching 
  the 
  extremity 
  of 
  the 
  wing 
  ; 
  2d 
  cubital 
  

   areolet 
  short, 
  much 
  attenuated 
  outwards 
  ; 
  podiscoidal 
  areolet 
  

   closed 
  ; 
  recurrent 
  nei'vure 
  evected. 
  Legs 
  flavo-testaceous 
  ; 
  coxae 
  

   very 
  pale. 
  Abdomen 
  of 
  the 
  5 
  suborbiculate, 
  oblong 
  in 
  the 
  (? 
  ; 
  1st 
  

   segment 
  rugulose 
  ; 
  2d 
  usually 
  piceous 
  towards 
  the 
  base. 
  Terebra 
  

   not 
  surpassing 
  the 
  anus. 
  Length, 
  1 
  — 
  1^ 
  ; 
  wings, 
  2f 
  — 
  3f 
  lines. 
  

  

  Var. 
  1. 
  Basal 
  half, 
  or 
  more, 
  of 
  2d 
  abdominal 
  segment 
  testa- 
  

   ceous, 
  3' 
  ? 
  • 
  

  

  Var. 
  2. 
  Like 
  the 
  preceding 
  ; 
  but 
  the 
  prothorax 
  is 
  testaceous, 
  

   the 
  humeral 
  angles 
  of 
  the 
  mesothorax 
  obscurely 
  testaceous, 
  and 
  

   the 
  clypeus 
  rufous, 
  like 
  the 
  mandibles, 
  J 
  . 
  

  

  Var. 
  3. 
  Like 
  Var. 
  1, 
  but 
  with 
  the 
  face, 
  orbits, 
  clypeus, 
  and 
  hind 
  

   margins 
  of 
  the 
  posterior 
  abdominal 
  segments, 
  testaceous. 
  

  

  A 
  common 
  species 
  in 
  Belgium 
  ; 
  Wesmael's 
  description 
  

   was 
  derived 
  from 
  20 
  specimens. 
  Haliday 
  received 
  

   several 
  from 
  Walker, 
  collected 
  in 
  the 
  London 
  district, 
  

   and 
  belonging 
  to 
  var. 
  3 
  ; 
  the 
  two 
  which 
  I 
  possess 
  are 
  

   from 
  Yorkshire 
  and 
  the 
  New 
  Forest 
  ; 
  they 
  have 
  the 
  

   colouring 
  of 
  Wesmael's 
  types. 
  

  

  37. 
  Opius 
  calatus, 
  Hal. 
  

  

  0. 
  ccelatm, 
  Hal., 
  Ent. 
  Mag., 
  iv., 
  216, 
  <? 
  . 
  

  

  Black 
  ; 
  head 
  oblate, 
  punctate 
  ; 
  occiput 
  smooth 
  ; 
  face 
  rugulose, 
  

   subcarinate 
  ; 
  clypeus 
  separated 
  from 
  the 
  mandibles 
  by 
  a 
  wide 
  

   senaicircular 
  interval 
  ; 
  mandibles 
  testaceous 
  ; 
  palpi 
  pale, 
  elongate. 
  

   Antennae 
  much 
  longer 
  than 
  the 
  body, 
  41-jointed, 
  blackish, 
  scape 
  

   more 
  or 
  less 
  rufous. 
  Thorax 
  longer 
  than 
  usual, 
  thickly 
  puuctulate, 
  

   somewhat 
  dull. 
  Mesothoracic 
  sutures 
  complete 
  ; 
  a 
  smooth 
  space 
  

   on 
  each 
  of 
  the 
  lateral 
  lobes, 
  the 
  medial 
  lobe 
  vaguely 
  punctate. 
  

   Mesopleura 
  with 
  a 
  crenate 
  furrow. 
  "Wings 
  hyaline 
  ; 
  squamula 
  

   rufo-testaceous 
  ; 
  nervures 
  fuscous 
  ; 
  stigma 
  fusco-testaceous, 
  nar- 
  

   row, 
  linear, 
  emitting 
  the 
  radius 
  before 
  -3- 
  of 
  its 
  length 
  ; 
  2d 
  cubital 
  

   areolet 
  not 
  attenuated 
  outwards 
  ; 
  recurrent 
  nervure 
  conspicuously 
  

   rejected. 
  Prajbrachial 
  transverse 
  nervure 
  of 
  the 
  hind 
  wings 
  

  

  