﻿426 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.96 
  

  

  Head 
  neither 
  abnormally 
  thin 
  nor 
  abnormally 
  prolonged, 
  mouth 
  parts 
  normal, 
  

   not 
  anthophilous; 
  hypopygium 
  of 
  normal 
  form 
  (pi. 
  56, 
  figs. 
  95, 
  96) 
  19 
  

  

  19. 
  Nervellus 
  broken 
  at 
  or 
  below 
  middle 
  (pi. 
  54, 
  fig. 
  54) 
  ; 
  abdomen 
  not 
  unusually 
  

  

  compressed 
  or 
  heavily 
  sclerotized 
  dorsally, 
  not 
  serrate 
  in 
  profile 
  (pi. 
  56 
  

   fig. 
  96); 
  clypeus 
  short 
  and 
  very 
  broadly 
  truncate 
  (pi. 
  50, 
  figs. 
  17, 
  18) 
  __ 
  20 
  

   Nervellus 
  broken 
  far 
  above 
  middle 
  (pi. 
  54, 
  fig. 
  59); 
  abdomen 
  very 
  strongly 
  

   compressed 
  along 
  dorsal 
  margin, 
  serrate 
  in 
  profile, 
  middle 
  tergites 
  being 
  

   creased 
  and 
  more 
  heavily 
  sclerotized 
  medially 
  and 
  with 
  prominent 
  apices 
  

   (pi. 
  56, 
  figs. 
  95, 
  97); 
  clypeus 
  large 
  and 
  long 
  (pi. 
  50, 
  figs. 
  19, 
  24) 
  21 
  

  

  20. 
  Postpectus 
  defined, 
  mesosulcus 
  closed 
  (pi. 
  52, 
  fig. 
  42), 
  

  

  18. 
  Clistorapha, 
  new 
  genus 
  

   Postpectus 
  not 
  defined, 
  mesosulcus 
  open 
  19. 
  Boethoneura, 
  new 
  genus 
  

  

  21. 
  Apical 
  margin 
  of 
  clypeus 
  very 
  broadly 
  truncate, 
  labrum 
  broadly 
  exposed 
  

  

  (pi. 
  50, 
  fig. 
  24); 
  lower 
  margin 
  of 
  mandible 
  evenly 
  curved 
  (pi. 
  50, 
  fig. 
  24); 
  

  

  legs 
  and 
  antennae 
  stout 
  20. 
  Genophion 
  Felt 
  

  

  Apical 
  margin 
  of 
  clypeus 
  arcuate 
  or, 
  rarely, 
  narrowly 
  truncate 
  medially, 
  

   labrum 
  narrowly 
  exposed 
  (pi. 
  50, 
  fig. 
  19) 
  ; 
  lower 
  margin 
  of 
  mandible 
  bent 
  

   at 
  the 
  middle, 
  straight 
  before 
  and 
  beyond 
  bend 
  (pi. 
  50, 
  fig. 
  19) 
  ; 
  legs 
  and 
  

   antennae 
  slender 
  21. 
  Chilophion, 
  new 
  genus 
  

  

  22. 
  Occipital 
  carina 
  absent 
  (pi. 
  50, 
  fig. 
  13) 
  ; 
  mandible 
  very 
  small, 
  so 
  twisted 
  that 
  

  

  upper 
  tooth 
  appears 
  to 
  be 
  on 
  inner 
  margin 
  (pi. 
  50, 
  fig. 
  15); 
  scutellum 
  not 
  

   margined 
  laterally; 
  mesopleuron 
  with 
  a 
  distinct 
  longitudinal 
  furrow 
  from 
  

   fovea 
  to 
  top 
  of 
  prepectus 
  (pi. 
  52, 
  fig. 
  49) 
  ; 
  stigma 
  extremely 
  narrow, 
  tapering 
  

   from 
  radius, 
  which 
  is 
  very 
  near 
  base 
  (pi. 
  54, 
  figs. 
  53, 
  58) 
  ; 
  basal 
  abscissa 
  of 
  

   radius 
  thick 
  and 
  curved 
  basally, 
  apical 
  abscissa 
  strongly 
  curved 
  forward 
  at 
  

   base 
  (pi. 
  54, 
  figs. 
  53, 
  58), 
  abscissula 
  slightly 
  thickened 
  and 
  weakly 
  curved 
  

   basally; 
  apical 
  joint 
  of 
  trochanter 
  in 
  middle 
  and 
  hind 
  leg 
  with 
  a 
  sharp, 
  

  

  decurved 
  tooth 
  on 
  outer 
  apical 
  margin 
  (pi. 
  55, 
  fig. 
  83) 
  23 
  

  

  Occipital 
  carina 
  present; 
  differing 
  also 
  from 
  most 
  of 
  the 
  other 
  characters 
  

   above 
  24 
  

  

  23. 
  Postpectus 
  completely 
  defined; 
  nervulus 
  postf 
  ureal; 
  postnervulus 
  broken 
  

  

  shortly 
  above 
  middle; 
  nervellus 
  broken 
  at 
  about 
  middle; 
  epipleura 
  of 
  

   segment 
  2 
  distinctly 
  separated 
  from 
  tergite 
  throughout. 
  

  

  22. 
  Stauropoctonus 
  Brauns 
  

  

  Postpectus 
  not 
  defined; 
  nervulus 
  antefurcal 
  to 
  interstitial; 
  postnervulus 
  

  

  broken 
  far 
  above 
  middle; 
  nervellus 
  broken 
  far 
  below 
  middle; 
  epipleura 
  of 
  

  

  segment 
  2 
  separated 
  from 
  tergite 
  only 
  basad 
  of 
  spiracles 
  and 
  there 
  weakly 
  

  

  so 
  23. 
  Aulophion, 
  new 
  genus 
  

  

  24. 
  Spiracles 
  of 
  tergite 
  2 
  at, 
  before, 
  or 
  somewhat 
  behind 
  middle, 
  but 
  always 
  

  

  basad 
  of 
  apical 
  third 
  (pi. 
  56, 
  figs. 
  90, 
  93) 
  ; 
  stigma 
  elongate 
  triangular; 
  basal 
  

   abscissa 
  of 
  radius 
  neither 
  thickened 
  nor 
  sinuate; 
  no 
  fenestra; 
  second 
  discoidal 
  

   cell 
  pointed 
  or 
  very 
  narrow 
  at 
  base; 
  first 
  abdominal 
  segment 
  stout 
  (pi. 
  56, 
  

  

  figs. 
  90, 
  93); 
  ocelli 
  small 
  25 
  

  

  Not 
  agreeing 
  entirely 
  with 
  above 
  26 
  

  

  25. 
  Postpectoral 
  carina 
  complete, 
  mesosulcus 
  closed; 
  first 
  abdominal 
  segment 
  

  

  very 
  short 
  and 
  broad, 
  sternite 
  not 
  nearly 
  reaching 
  spiracles, 
  tergite 
  2 
  with 
  

   spiracles 
  distinctly 
  basad 
  of 
  middle; 
  ovipositor 
  not 
  exserted 
  (pi. 
  56, 
  fig. 
  93). 
  

  

  24. 
  Banchogastra 
  Ashmead 
  

  

  Postpectoral 
  carina 
  obsolete, 
  mesosulcus 
  open; 
  metapleuron 
  tumid; 
  first 
  

  

  abdominal 
  segment 
  more 
  slender, 
  sternite 
  reaching 
  spiracles, 
  tergite 
  2 
  with 
  

  

  spiracles 
  at 
  or 
  beyond 
  middle; 
  ovipositor 
  strongly 
  exserted 
  (pi. 
  56, 
  fig. 
  90). 
  

  

  25. 
  Pycnophion 
  Ashmead 
  

  

  