﻿16 
  Eev. 
  T. 
  A. 
  Marshall's 
  Monograjyh 
  of 
  

  

  1. 
  Hedylus 
  hahilis, 
  n. 
  sp. 
  (PI. 
  II., 
  fig. 
  3, 
  <? 
  ). 
  

  

  Niger, 
  capite, 
  antennarum 
  basi, 
  prothorace, 
  mesothoracis 
  later!- 
  

   bus, 
  abdominisque 
  medio 
  superne, 
  testaceis. 
  Palpi 
  fere 
  albidi. 
  

   Stemmaticum 
  nigrum 
  ; 
  vertex, 
  occiput, 
  piceo-rufa. 
  Scutellum 
  

   etiam 
  piceum. 
  Alee 
  hyalinse, 
  squamula, 
  nervis, 
  stigmate, 
  pallida 
  

   fuscescentibus. 
  Pedes 
  flavidi 
  coxis 
  pallidioribus. 
  

  

  Black 
  ; 
  head, 
  antennae 
  broadly 
  at 
  the 
  base, 
  prothorax, 
  sides 
  of 
  

   the 
  mesothorax 
  partly, 
  and 
  abdomen 
  indeterminately 
  in 
  the 
  

   middle, 
  testaceous. 
  Palpi 
  very 
  pale, 
  whitish. 
  Stemmaticum 
  

   black 
  ; 
  vertex 
  and 
  occiijut 
  piceo-rufous. 
  Scutellum 
  piceous. 
  Wings 
  

   hyaline, 
  squamula, 
  nervures, 
  and 
  stigma 
  pale, 
  fuscescent. 
  Legs 
  

   yellowish, 
  with 
  paler 
  coxae. 
  ^. 
  Length, 
  Ih; 
  wings, 
  3| 
  lines. 
  

  

  Antennae 
  slender, 
  setaceous, 
  twice 
  the 
  length 
  of 
  the 
  body, 
  36- 
  

   jointed, 
  the 
  3d 
  joint 
  much 
  longer 
  than 
  the 
  4th 
  ; 
  joints 
  1 
  — 
  8 
  testa- 
  

   ceous, 
  the 
  rest 
  gradually 
  darkened 
  to 
  the 
  apex. 
  Metathorax 
  short, 
  

   sloping 
  gradually, 
  irregularly 
  reticulated, 
  with 
  a 
  smooth 
  shining 
  

   space 
  on 
  either 
  side 
  of 
  the 
  base 
  ; 
  the 
  apical 
  margin 
  somewhat 
  

   acutely 
  raised. 
  Wings 
  much 
  longer 
  than 
  the 
  abdomen 
  ; 
  fore 
  wings 
  

   ample, 
  the 
  nervm^es 
  distinct, 
  except 
  the 
  cubitus, 
  the 
  2d 
  intercubital, 
  

   and 
  the 
  extremity 
  of 
  the 
  anal, 
  which 
  are 
  effaced. 
  Hind 
  wings 
  

   narrow, 
  ciliated 
  with 
  long 
  pale 
  hairs. 
  First 
  abdominal 
  segment 
  

   scarcely 
  dilated 
  behind, 
  3 
  times 
  longer 
  than 
  its 
  apical 
  breadth, 
  

   longitudinally 
  convex 
  with 
  depressed 
  lateral 
  margins, 
  rimulose, 
  

   black, 
  the 
  extreme 
  base 
  testaceous 
  ; 
  the 
  rest 
  of 
  the 
  abdomen 
  smooth, 
  

   shining, 
  blackish, 
  broadly 
  and 
  indeterminately 
  testaceous 
  on 
  the 
  

   disk. 
  

  

  The 
  only 
  specimen 
  was 
  discovered 
  by 
  Bignell 
  in 
  South 
  

   Devon. 
  

  

  iv. 
  EUEYTENES, 
  FoTSteT. 
  

  

  Forst., 
  Verh. 
  pr. 
  Eheinl., 
  1862, 
  p. 
  259. 
  

  

  Distinguished 
  from 
  Opius 
  only 
  by 
  its 
  peciihar 
  wings. 
  Face 
  

   carinated 
  ; 
  mouth 
  closed. 
  Mesopleurae 
  impressed 
  with 
  a 
  crenate 
  

   furrow. 
  Mesothorax 
  elevated, 
  gibbous, 
  subrugixlose, 
  without 
  visible 
  

   sixtures. 
  Metathorax 
  very 
  short, 
  abruptly 
  sloping, 
  contracted 
  

   behind. 
  Fore 
  wings 
  ample, 
  dilated 
  and 
  obtusely 
  rounded 
  at 
  the 
  

   extremity 
  ; 
  stigma 
  very 
  long 
  and 
  narrow, 
  incrassated 
  towards 
  the 
  

   apex 
  ; 
  radius 
  springing 
  from 
  its 
  extreme 
  base 
  ; 
  1st 
  abscissa 
  makmg 
  

   a 
  very 
  obtuse 
  angle 
  with 
  the 
  2d, 
  but 
  not 
  in 
  a 
  line 
  with 
  it 
  (as 
  repre- 
  

   sented 
  by 
  Wesmael) 
  ; 
  3d 
  abscissa 
  straight, 
  reaching 
  the 
  end 
  of 
  the 
  

   wing, 
  and 
  enclosing 
  a 
  large 
  cultriform 
  radial 
  areolet 
  ; 
  2d 
  ciibital 
  

   areolet 
  larger 
  than 
  the 
  1st, 
  both 
  trapezoidal 
  ; 
  recm'rent 
  nervure 
  

  

  