﻿abt. 
  8 
  REVISION 
  OF 
  THE 
  GENUS 
  MICTtOBEACON 
  MUESEBECK 
  19 
  

  

  86. 
  Propodeum 
  somewhat 
  sculptured 
  medially 
  at 
  base 
  and 
  with 
  a 
  distinct 
  

  

  median 
  ridge 
  on 
  apical 
  third 
  ; 
  posterior 
  tarsi 
  scarcely 
  as 
  long 
  as 
  their 
  

   tibiae, 
  the 
  last 
  tarsal 
  segment 
  fully 
  as 
  long 
  as 
  the 
  second, 
  and 
  stout 
  

  

  2G. 
  uncas 
  Viereck. 
  

  

  Propodeum 
  perfectly 
  smooth 
  and 
  polished 
  except 
  for 
  an 
  exceedingly 
  short, 
  

  

  often 
  indistinct, 
  stub 
  of 
  a 
  median 
  ridge 
  at 
  apex 
  ; 
  posterior 
  tarsi 
  longer 
  

  

  than 
  their 
  tibiae, 
  the 
  last 
  tarsal 
  segment 
  not 
  nearly 
  as 
  long 
  as 
  the 
  

  

  second 
  S7. 
  

  

  87. 
  Antennae 
  very 
  slender, 
  normally 
  27 
  to 
  32-segmented, 
  all 
  flagellar 
  segments 
  

  

  at 
  least 
  twice 
  as 
  long 
  as 
  broad 
  ; 
  head 
  entirely 
  black 
  

  

  2S. 
  auripes 
  (Provancher)- 
  

  

  Antennae 
  usually 
  33 
  to 
  36-segmented, 
  the 
  flagellar 
  segments 
  mostly 
  less 
  

  

  than 
  twice 
  as 
  long 
  as 
  broad; 
  head 
  usually 
  with 
  very 
  narrow 
  inner 
  and 
  

  

  superior 
  ferruginous 
  orbital 
  lines 
  24. 
  nigridorsum 
  (Ashmead). 
  

  

  88. 
  Posterior 
  tarsi 
  stout, 
  the 
  last 
  tarsal 
  segment 
  fully 
  as 
  long 
  as 
  the 
  second 
  and 
  

  

  more 
  than 
  half 
  the 
  metatarsus 
  ; 
  abdomen 
  slender 
  ; 
  first 
  tergite 
  long 
  and 
  

   narrow, 
  broadening 
  gradually 
  from 
  base 
  and 
  about 
  twice 
  as 
  long 
  as 
  broad 
  

   at 
  apex 
  ; 
  second 
  tergite 
  at 
  most 
  with 
  faint 
  sculpturing 
  medially 
  ; 
  suturi- 
  

  

  form 
  articulation 
  very 
  delicate 
  ; 
  stigma 
  large 
  ; 
  abdomen 
  black 
  89. 
  

  

  Posterior 
  tarsi 
  more 
  slender, 
  the 
  last 
  tarsal 
  segment 
  shorter 
  than 
  the 
  second 
  

   and 
  not 
  more 
  than 
  half 
  the 
  metatarsus 
  ; 
  otherwise 
  not 
  as 
  above 
  90. 
  

  

  89. 
  Abdomen 
  completely 
  polished 
  ; 
  wings 
  strongly 
  infuscated. 
  

  

  68. 
  wawequa 
  Viereck 
  

  

  Abdomen 
  with 
  second 
  tergite 
  a 
  little 
  striate 
  medially 
  ; 
  wings 
  slightly 
  dusky 
  

  

  on 
  basal 
  two-thirds 
  25. 
  ashmeadi, 
  new 
  name. 
  

  

  90. 
  Second 
  and 
  third 
  abdominal 
  tergites 
  rather 
  evenly 
  striate 
  ; 
  suturiform 
  ar- 
  

  

  ticulation 
  broad, 
  coarsely 
  foveolate 
  ; 
  last 
  abscissa 
  of 
  radius 
  shorter 
  than 
  

   first 
  and 
  second 
  combined 
  ; 
  propodeum 
  with 
  a 
  median 
  carina 
  on 
  apical 
  

   half 
  ; 
  all 
  segments 
  of 
  antennal 
  flagellum 
  longer 
  than 
  broad 
  

  

  69. 
  sulcifrons 
  (Ashmead). 
  

   Third 
  abdominal 
  tergite 
  rarely 
  sculptured 
  and 
  then 
  with 
  only 
  very 
  faint 
  

   roughening 
  toward 
  base 
  ; 
  at 
  least 
  not 
  the 
  above 
  combination 
  of 
  char- 
  

   acters 
  91. 
  

  

  91. 
  Stigma 
  yellow* 
  at 
  base 
  and 
  along 
  costal 
  margin; 
  malar 
  space 
  about 
  as 
  long 
  

  

  as 
  first 
  segment 
  of 
  antennal 
  flagellum 
  ; 
  all 
  flagellar 
  segments 
  longer 
  than 
  

  

  broad, 
  the 
  first 
  and 
  second 
  of 
  equal 
  length 
  33. 
  hyslopi 
  Viereck. 
  

  

  Stigma 
  unicolorous, 
  brown 
  92. 
  

  

  92. 
  Antennae 
  stout, 
  frequently 
  broadening 
  faintly 
  beyond 
  the 
  first 
  flagellar 
  seg- 
  

  

  ment, 
  and 
  narrowing 
  again 
  toward 
  apex, 
  most 
  of 
  the 
  flagellar 
  segments 
  

   but 
  little 
  or 
  no 
  longer 
  than 
  broad 
  ; 
  second 
  abscissa 
  of 
  radius 
  usually 
  

   twice 
  the 
  first 
  ; 
  abdomen 
  frequently 
  ferruginous 
  with 
  only 
  first 
  tergite 
  

  

  and 
  median 
  spot 
  on 
  second, 
  black 
  93. 
  

  

  Antennae 
  more 
  slender, 
  all 
  flagellar 
  segments 
  much 
  longer 
  than 
  broad 
  ; 
  

   second 
  abscissa 
  of 
  radius 
  usually 
  distinctly 
  less 
  than 
  twice 
  the 
  first 
  ; 
  

   abdomen 
  black 
  with 
  more 
  or 
  less 
  of 
  second 
  and 
  third 
  tergites 
  pale 
  95. 
  

  

  93. 
  Antennae 
  normally 
  25 
  to 
  30-segmented 
  ; 
  propodeum 
  with 
  a 
  median 
  carina 
  

  

  on 
  apical 
  half 
  and 
  raore 
  or 
  less 
  rugulose 
  on 
  the 
  median 
  line 
  toward 
  base 
  ; 
  

   second 
  abscissa 
  of 
  radius 
  more 
  than 
  twice 
  the 
  first, 
  the 
  third 
  longer 
  

   than 
  the 
  first 
  and 
  second 
  combined 
  ; 
  abdomen 
  with 
  second 
  and 
  third 
  

   tergites 
  mostly 
  yellowish 
  or 
  red, 
  the 
  remainder 
  black. 
  

  

  34. 
  nitidus 
  (Provancher). 
  

  

  Antennae 
  normally 
  32 
  to 
  37-segmented 
  ; 
  propodeum 
  not 
  so 
  completely 
  

  

  sculptured 
  on 
  the 
  median 
  line 
  ; 
  abdomen 
  usually 
  ferruginous 
  with 
  only 
  

  

  first 
  tergite 
  and 
  a 
  median 
  spot 
  on 
  second 
  black 
  94 
  

  

  