﻿14 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL. 
  MUSEUM 
  vol. 
  67 
  

  

  48. 
  Parapsidal 
  grooves 
  thickly 
  hairy; 
  frons 
  closely 
  punctate 
  and 
  opaque; 
  

  

  thorax 
  stout; 
  head 
  with 
  pale 
  yellow 
  inner 
  and 
  superior 
  orbital 
  lines; 
  

   propodeuni 
  without 
  a 
  median 
  longitudinal 
  carina 
  ; 
  antennae 
  usually 
  24 
  

  

  to 
  29-segmented 
  20. 
  pygmaeus 
  (Provancher). 
  

  

  Parapsidal 
  grooves 
  sparsely 
  hairy 
  ; 
  frons 
  smooth 
  and 
  polished 
  ; 
  thorax 
  

   slender 
  ; 
  head 
  wholly 
  black, 
  without 
  pale 
  orbital 
  lines 
  ; 
  propodeum 
  with 
  

   a 
  complete 
  or 
  nearly 
  complete 
  median 
  longitudinal 
  carina 
  ; 
  antennae 
  

   usually 
  28 
  to 
  32-segmented 
  23. 
  meromyzae 
  (Gahan). 
  

  

  49. 
  Second 
  abdominal 
  tergite 
  very 
  finely 
  punctate 
  ; 
  third 
  and 
  following 
  tergites 
  

  

  very 
  faintly 
  so, 
  almost 
  polished 
  ; 
  antennae 
  usually 
  29 
  to 
  33-seg- 
  

  

  mented 
  46. 
  montowesi 
  Viereck. 
  

  

  Abdomen 
  closely 
  granular 
  above, 
  opaque 
  or 
  subopaque 
  ; 
  antennae 
  normally 
  

   34 
  to 
  40-seginented 
  47. 
  cephi 
  Gahan. 
  

  

  50. 
  All 
  coxae 
  black 
  ; 
  remainder 
  of 
  legs 
  more 
  or 
  less 
  blackish 
  ; 
  head 
  including 
  

  

  face, 
  black 
  ; 
  thorax 
  black 
  ; 
  abdomen 
  usually 
  red, 
  short, 
  broad 
  oval, 
  

   rugulose 
  on 
  second 
  tergite, 
  granular 
  on 
  third, 
  fourth 
  and 
  fifth 
  tergites 
  ; 
  

   antennae 
  normally 
  25 
  to 
  29-segmented; 
  ovipositor 
  sheaths 
  about 
  as 
  long 
  

  

  as 
  the 
  abdomen 
  beyond 
  first 
  segment 
  48. 
  hemimenae 
  Rohwer. 
  

  

  Coxae 
  yellow, 
  rarely 
  posterior 
  coxae 
  somewhat 
  infuscated, 
  and 
  then 
  not 
  

   agreeing 
  entirely 
  with 
  the 
  above 
  51. 
  

  

  51. 
  Propodeum 
  smooth 
  and 
  polished, 
  usually 
  with 
  a 
  complete 
  or 
  nearly 
  complete 
  

  

  median 
  longitudinal 
  carina 
  ; 
  abdomen 
  strongly 
  sculptured, 
  the 
  second 
  

   tergite 
  irregularly 
  rugose 
  medially 
  and 
  usually 
  much 
  shorter 
  than 
  the 
  

   third 
  ; 
  wings 
  decidedly 
  infuscated 
  ; 
  stigma 
  dark 
  brown 
  ; 
  second 
  abscissa 
  

   of 
  radius 
  usually 
  much 
  more 
  than 
  twice 
  the 
  first 
  ; 
  antennae 
  normally 
  34 
  

   to 
  40-segmented 
  ; 
  malar 
  space 
  about 
  as 
  long 
  as 
  first 
  segment 
  of 
  antennal 
  

   flagellum 
  ; 
  ovipositor 
  sheaths 
  about 
  as 
  long 
  as 
  the 
  abdomen, 
  not 
  distinctly 
  

  

  longer 
  „ 
  49. 
  oenotherae, 
  new 
  species. 
  

  

  Propodeum 
  without 
  a 
  median 
  carina, 
  although 
  usually 
  with 
  a 
  stub 
  of 
  a 
  

   carina 
  at 
  apex 
  ; 
  otherwise 
  not 
  exactly 
  as 
  above 
  52. 
  

  

  52. 
  Ovipositor 
  sheaths 
  at 
  most 
  as 
  long 
  as 
  the 
  abdomen 
  beyond 
  first 
  tergite_ 
  61. 
  

   Ovipositor 
  sheaths 
  as 
  long 
  as 
  the 
  abdomen 
  or 
  longer 
  53. 
  

  

  53. 
  Second 
  abdominal 
  tergite 
  finely 
  granular 
  or 
  punctate, 
  never 
  strongly 
  rugose 
  ; 
  

  

  third 
  and 
  following 
  tergites 
  very 
  delicately, 
  usually 
  very 
  faintly 
  sculp- 
  

   tured, 
  strongly 
  shining; 
  suturiform 
  articulation 
  fine, 
  straight, 
  the 
  second 
  

   tergite 
  hot 
  emarginate 
  medially 
  ; 
  antennae 
  stout, 
  the 
  segments 
  of 
  the 
  

   apical 
  half 
  of 
  flagellum 
  scarcely 
  longer 
  than 
  broad 
  ; 
  malar 
  space 
  about 
  

  

  as 
  long 
  as 
  first 
  flagellar 
  segment; 
  wings 
  very 
  nearly 
  hyaline 
  54. 
  

  

  Second 
  to 
  fifth 
  or 
  sixth 
  abdominal 
  tergites 
  usually 
  granular, 
  the 
  second 
  

   often 
  more 
  or 
  less 
  rugose 
  ; 
  if 
  abdomen 
  is 
  not 
  distinctly 
  granular 
  on 
  third 
  

   and 
  following 
  tergites 
  the 
  antennae 
  are 
  more 
  slender, 
  or 
  the 
  malar 
  space 
  

   is 
  much 
  shorter 
  than 
  the 
  first 
  flagellar 
  segment; 
  at 
  least 
  not 
  combining 
  

   all 
  the 
  above 
  characters 
  56. 
  

  

  54. 
  Ovipositor 
  sheaths 
  about 
  as 
  long 
  as 
  the 
  body 
  or 
  nearly; 
  abdomen 
  usually 
  

  

  black 
  above 
  except 
  for 
  the 
  suturiform 
  articulation 
  and 
  a 
  lateral 
  spot 
  at 
  

   base 
  of 
  second 
  tergite, 
  which 
  are 
  yellow 
  ; 
  antennae 
  normally 
  26 
  to 
  29- 
  

   segmented 
  50. 
  papaipemae 
  Gahan. 
  

  

  Ovipositor 
  sheaths 
  about 
  as 
  long 
  as 
  the 
  abdomen 
  ; 
  second 
  and 
  third 
  tergites 
  

   usually 
  yellowish 
  ; 
  remainder 
  of 
  abdomen 
  more 
  or 
  less 
  blackish 
  55. 
  

  

  55. 
  Suturiform 
  articulation 
  distinctly 
  minutely 
  foveolate 
  ; 
  face 
  yellow 
  ; 
  an- 
  

  

  tennae 
  normally 
  29 
  to 
  32-segmented 
  51. 
  apicatus 
  (Provancher). 
  

  

  Suturiform 
  articulation 
  very 
  fine, 
  weakly 
  impressed, 
  not 
  foveolate; 
  face 
  

   hrownish 
  black; 
  antennae 
  normally 
  24 
  to 
  27-segmented. 
  

  

  52. 
  nanus 
  (Provancher). 
  

  

  