﻿art. 
  8 
  REVISION 
  OF 
  THE 
  GENUS 
  MIGROBEACON 
  MUESEBECK 
  21 
  

  

  102. 
  Propodeum, 
  except 
  at 
  extreme 
  base, 
  rugulose; 
  most 
  flagellar 
  segments 
  but 
  

  

  very 
  little 
  longer 
  than 
  broad; 
  body 
  usually 
  yellowish; 
  abdomen 
  only 
  

  

  very 
  faintly 
  sculptured 
  beyond 
  second 
  tergite 
  103. 
  

  

  Propodeum 
  usually 
  smooth 
  and 
  polished, 
  although 
  often 
  with 
  diverging 
  

   ridges 
  medially, 
  and 
  sometimes 
  delicately 
  punctate 
  or 
  reticulate 
  over 
  

   most 
  of 
  its 
  surface 
  104. 
  

  

  103. 
  Second 
  abdominal 
  tergite 
  with 
  an 
  irregularly 
  rugose 
  area 
  on 
  basal 
  middle 
  ; 
  

  

  antennae 
  usually 
  28 
  to 
  32-segmented 
  45. 
  podunkorum 
  Viereck. 
  

  

  Second 
  abdominal 
  tergite 
  rather 
  evenly 
  finely 
  sculptured 
  ; 
  antennae 
  usually 
  

   32 
  to 
  36-segmented 
  44. 
  analcidis 
  (Ashmead). 
  

  

  104. 
  Propodeum 
  faintly 
  reticulate 
  on 
  its 
  posterior 
  half; 
  sometimes 
  more 
  dis- 
  

  

  tinctly 
  granular 
  over 
  its 
  entire 
  surface 
  ; 
  thorax 
  never 
  wholly 
  black__ 
  105. 
  

   Propodeum 
  smooth 
  and 
  polished, 
  with 
  no 
  indication 
  of 
  such 
  reticula- 
  

   tion 
  108. 
  

  

  105. 
  Second 
  abscissa 
  of 
  radius 
  much 
  more 
  than 
  twice 
  the 
  first 
  ; 
  radius 
  going 
  

  

  to 
  extreme 
  apex 
  of 
  wing, 
  the 
  third 
  abscissa 
  of 
  radius 
  almost 
  on 
  a 
  

   straight 
  line 
  with 
  the 
  second 
  ; 
  wings 
  distinctly 
  somewhat 
  infuscated, 
  

   the 
  stigma 
  usually 
  yellow 
  ; 
  antennae 
  rather 
  slender, 
  usually 
  30 
  to 
  36- 
  

   segmented 
  ; 
  body 
  entirely 
  yellow, 
  very 
  rarely 
  with 
  propodeum 
  and 
  first 
  

   tergite 
  dusky; 
  ocell-ocular 
  line 
  not 
  more 
  than 
  twice 
  the 
  diameter 
  of 
  an 
  

  

  ocellus 
  GO. 
  caulicola 
  Gahan. 
  

  

  Second 
  abscissa 
  of 
  radius 
  usually 
  not 
  more 
  than 
  twice 
  the 
  first, 
  and 
  

   usually 
  making 
  a 
  distinct 
  angle 
  with 
  the 
  second 
  106. 
  

  

  106. 
  Antennae 
  normally 
  23 
  to 
  29-segmented 
  ; 
  second 
  abdominal 
  tergite 
  usually 
  

  

  fully 
  as 
  long 
  as 
  the 
  first 
  and 
  longer 
  than 
  the 
  third 
  ; 
  propodeum 
  and 
  

   first 
  abdominal 
  tergite 
  usually 
  infuscated 
  ; 
  mesonotal 
  lobes 
  often 
  more 
  

  

  or 
  less 
  blackish 
  63. 
  argutator 
  (Say). 
  

  

  Antennae 
  usually 
  27 
  to 
  37-segmented 
  ; 
  second 
  abdominal 
  tergite 
  very 
  rarely 
  

   longer 
  than 
  third 
  107. 
  

  

  107. 
  Flagellar 
  segments 
  of 
  antennae 
  slender; 
  antennae 
  composed 
  of 
  27 
  to 
  33 
  

  

  .segments 
  ; 
  abdomen 
  beyond 
  3d 
  tergite 
  usually 
  only 
  very 
  faintly 
  sculp- 
  

   tured 
  ; 
  propodeum 
  and 
  first 
  abdominal 
  tergite 
  usually 
  yellow 
  ; 
  head, 
  

   sometimes 
  including 
  part 
  of 
  face, 
  and 
  anterior 
  parts 
  of 
  mesonotum, 
  

  

  usually 
  blackish 
  64. 
  geraei, 
  new 
  species. 
  

  

  Flagellar 
  segments 
  mostly 
  only 
  a 
  little 
  longer 
  than 
  broad; 
  antennae 
  

   normally 
  composed 
  of 
  32 
  to 
  37 
  segments; 
  third 
  to 
  fifth 
  abdominal 
  

   tergites 
  granular 
  and 
  opaque; 
  propodeum 
  and 
  first 
  abdominal 
  tergite, 
  

   and 
  usually 
  venter 
  of 
  thorax, 
  black 
  54. 
  nigropectus 
  (Provancher). 
  

  

  108. 
  Abdomen 
  not 
  or 
  only 
  indistinctly 
  sculptured 
  beyond 
  third 
  tergite, 
  strongly 
  

  

  shining, 
  suturiform 
  articulation 
  very 
  fine 
  109. 
  

  

  Abdomen 
  granular 
  on 
  second 
  to 
  fifth 
  tergites; 
  suturiform 
  articulation 
  

   often 
  rather 
  broad, 
  foveolate 
  115. 
  

  

  109. 
  Antennae 
  stout, 
  most 
  of 
  the 
  flagellar 
  segments 
  but 
  little 
  or 
  no 
  longer 
  

  

  than 
  broad 
  HO. 
  

  

  Antennae 
  slender, 
  flagellar 
  segments 
  much 
  longer 
  than 
  broad; 
  face 
  yellow; 
  

   abdomen 
  mostly 
  yellow 
  112. 
  

  

  110. 
  Suturiform 
  articulation 
  usually 
  finely 
  foveolate; 
  antennae 
  usually 
  28 
  to 
  

  

  33-segmented 
  ; 
  face 
  yellow 
  ; 
  abdomen 
  usually 
  largely 
  ferruginous, 
  blackish 
  

   at 
  base 
  and 
  apex; 
  frons 
  and 
  vertex 
  mostly 
  ferruginous, 
  black 
  only 
  

  

  medially 
  51. 
  apicatus 
  (Provancher). 
  

  

  59. 
  hobomok 
  Viereck. 
  

   Suturiform 
  articulation 
  not 
  distinctly 
  foveolate; 
  antennae 
  usually 
  24 
  to 
  

   29-segmented; 
  face 
  usually 
  brownish-black; 
  frons 
  and 
  vertex 
  wholly 
  

   black 
  HI. 
  

  

  