﻿86 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  sr 
  

  

  Three 
  species 
  of 
  Ropronia 
  are 
  known 
  from 
  the 
  Nearctic 
  Region, 
  

   and 
  a 
  fourth 
  described 
  below 
  probably 
  from 
  China, 
  but 
  the 
  origin 
  of 
  

   the 
  specimens 
  described 
  is 
  not 
  known 
  with 
  any 
  certainty. 
  

  

  KEY 
  TO 
  THE 
  SPECIES 
  OF 
  ROPRONIA 
  

  

  1. 
  Head 
  and 
  thorax 
  mostly 
  or 
  entirely 
  ferruginous; 
  postscutelhun 
  elevated 
  as 
  an 
  

  

  acute 
  pyramid; 
  venation 
  as 
  in 
  fig. 
  12, 
  b 
  2. 
  calif 
  omica 
  Ashmead 
  

  

  Head 
  and 
  thorax 
  black, 
  sometimes 
  marked 
  with 
  whitish; 
  postscutellum 
  con- 
  

   vex, 
  not 
  conspicuously 
  elevated 
  2 
  

  

  2. 
  Nervulus 
  meeting 
  medial 
  vein 
  basad 
  of 
  basal 
  vein 
  (fig. 
  12, 
  c); 
  frons 
  and 
  top 
  of 
  

  

  head 
  coarsely 
  rugosopunctate 
  4. 
  pediculata 
  Provancher 
  

  

  Nervulus 
  meeting 
  medial 
  vein 
  beyond 
  basal 
  vein 
  (fig. 
  12, 
  a, 
  d) 
  ; 
  frons 
  and 
  top 
  

   of 
  head 
  with 
  small 
  punctures 
  3 
  

  

  3. 
  Forewing 
  with 
  a 
  large 
  fuscous 
  spot 
  below 
  stigma 
  (fig. 
  12, 
  d). 
  

  

  3. 
  brevicornis, 
  new 
  species 
  

   Forewing 
  without 
  a 
  spot 
  (fig. 
  12, 
  o) 
  1. 
  garmani 
  Ashmead 
  

  

  1. 
  ROPRONIA 
  GARMANI 
  Ashmead 
  

  

  Figure 
  12, 
  a 
  

  

  Ropironia 
  (!) 
  garmani 
  Ashmead, 
  Proc. 
  Ent. 
  Soc. 
  Washington, 
  vol. 
  4, 
  p. 
  132, 
  1899. 
  

   Type: 
  (f, 
  Lexington, 
  Ky. 
  (Washington). 
  

  

  Thorax 
  black, 
  sometimes 
  marked 
  with 
  whitish; 
  forewing 
  without 
  a 
  dark 
  

   spot; 
  nervulus 
  meeting 
  the 
  medial 
  vein 
  basad 
  of 
  the 
  basal 
  vein. 
  

  

  Forewing 
  about 
  5.4 
  mm. 
  long; 
  face 
  with 
  a 
  median 
  dorsal 
  longitudinal 
  

   tubercle; 
  frons 
  and 
  top 
  of 
  head 
  with 
  rather 
  close, 
  sharp, 
  medium-sized 
  

   punctures; 
  second 
  flagellar 
  segment 
  about 
  2.2 
  as 
  long 
  as 
  deep 
  in 
  the 
  

   male, 
  about 
  3.0 
  as 
  long 
  as 
  deep 
  in 
  the 
  female; 
  mesoscutum 
  with 
  

   medium-sized 
  punctures 
  separated 
  by 
  about 
  1.0 
  their 
  diameter; 
  scutel- 
  

   lum 
  witb 
  a 
  median 
  semicircular 
  raised 
  area; 
  venation 
  as 
  in 
  figm-e 
  12, 
  a; 
  

   first 
  tergite 
  about 
  4.0 
  as 
  long 
  as 
  deep; 
  second 
  tergite 
  polished. 
  

  

  Color 
  unusually 
  variable. 
  Darker 
  specimens 
  are 
  as 
  follows: 
  Black. 
  

   Male 
  with 
  the 
  second 
  abdominal 
  segment 
  ferruginous 
  with 
  its 
  base 
  and 
  

   apex 
  infuscate; 
  female 
  with 
  the 
  gaster 
  ferruginous 
  except 
  that 
  the 
  

   subgenital 
  plate 
  and 
  the 
  base 
  of 
  the 
  second 
  segment 
  are 
  somewhat 
  

   infuscate, 
  or 
  the 
  gaster 
  rarely 
  colored 
  as 
  in 
  the 
  male. 
  A 
  common 
  

   variation 
  of 
  this 
  coloration 
  is 
  to 
  have 
  the 
  forecoxa, 
  apex 
  of 
  the 
  fore 
  

   femur, 
  foretibia, 
  basal 
  part 
  of 
  middle 
  tibia, 
  and 
  apices 
  of 
  middle 
  and 
  

   hind 
  tibiae 
  paler 
  (light 
  brown 
  to 
  whitish) 
  . 
  Unusually 
  pale 
  specimens 
  

   are 
  as 
  follows: 
  Black 
  or 
  blackish. 
  Head 
  except 
  above, 
  mouth 
  parts, 
  

   antenna 
  except 
  above, 
  margins 
  of 
  pronotum 
  of 
  varying 
  widths, 
  upper 
  

   anterior 
  part 
  of 
  mesopleurum, 
  tegula, 
  trochanters, 
  front 
  and 
  middle 
  

   coxae, 
  tarsi, 
  front 
  and 
  middle 
  tibiae, 
  front 
  femur 
  except 
  basally, 
  apical 
  

   parts 
  of 
  middle 
  and 
  hind 
  femora, 
  and 
  basal 
  0.3 
  and 
  apical 
  0.1 
  of 
  hind 
  

   tibia 
  whitish 
  to 
  pale 
  brown; 
  abdomen 
  colored 
  as 
  in 
  the 
  darker 
  forms. 
  

   Paler 
  specimens 
  are 
  usually 
  females. 
  

  

  Specimens: 
  Many 
  males 
  and 
  females 
  from 
  the 
  District 
  of 
  Columbia 
  

   (Georgetown) 
  ; 
  Georgia 
  (Yonah 
  Mountain) 
  ; 
  Iowa 
  (Floyd 
  and 
  Musca- 
  

  

  