﻿88 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  as 
  

  

  Holly 
  Springs, 
  Philadelphia, 
  and 
  West 
  Chester) 
  ; 
  and 
  Virginia 
  (Falls 
  

   Church. 
  Great 
  Falls, 
  and 
  Rosslyn). 
  

  

  This 
  species 
  appears 
  confined 
  to 
  moist 
  localities 
  in 
  the 
  Transitional 
  

   Zone 
  of 
  eastern 
  North 
  America. 
  It 
  is 
  often 
  moderately 
  common 
  

   among 
  rank 
  shaded 
  vegetation 
  along 
  stream 
  bottoms, 
  as 
  in 
  places 
  

   where 
  Impatiens 
  grows. 
  Most 
  adults 
  are 
  on 
  the 
  wing 
  between 
  June 
  

   20 
  and 
  the 
  end 
  of 
  July. 
  The 
  earliest 
  and 
  latest 
  dates 
  of 
  capture 
  are 
  

   Jime 
  13 
  and 
  August 
  31, 
  both 
  at 
  Takoma 
  Park, 
  Md. 
  

  

  2. 
  ROPRONIA 
  CAUFORNICA 
  Ashmead 
  

  

  Figure 
  12, 
  b 
  

  

  Roplronia 
  (!) 
  calif 
  ornica 
  Ashmead, 
  Proc. 
  Ent, 
  Soc. 
  Washington, 
  vol. 
  4, 
  p. 
  133, 
  

   1899. 
  Type: 
  cf, 
  southern 
  California 
  (Philadelphia). 
  

  

  Head 
  and 
  thorax 
  largely 
  or 
  entirely 
  ferruginous. 
  

  

  Forewing 
  about 
  5.3 
  mm. 
  long; 
  face 
  with 
  a 
  median 
  dorsal 
  longitudinal 
  

   tubercle; 
  frons 
  irregularly 
  rugose, 
  with 
  close 
  small 
  punctures; 
  top 
  of 
  

   head 
  with 
  moderately 
  close 
  small 
  punctures; 
  second 
  flagellar 
  segment 
  

   about 
  2.3 
  as 
  long 
  as 
  deep 
  in 
  the 
  male, 
  about 
  3.0 
  as 
  long 
  as 
  deep 
  in 
  the 
  

   female; 
  mesoscutum 
  with 
  rather 
  small 
  punctures 
  separated 
  by 
  about 
  

   2.0 
  their 
  diameter; 
  scutellum 
  with 
  its 
  median 
  section 
  elevated 
  as 
  a 
  

   high 
  pyrafnid 
  that 
  is 
  about 
  1.2 
  as 
  high 
  as 
  its 
  basal 
  diameter; 
  venation 
  

   as 
  in 
  figure 
  12, 
  b: 
  first 
  tergite 
  about 
  3.2 
  as 
  long 
  as 
  deep; 
  second 
  tergite 
  

   polished. 
  

  

  Ferruginous. 
  Part 
  or 
  all 
  of 
  the 
  thoracic 
  sterna 
  black. 
  Sometimes, 
  

   especially 
  in 
  males, 
  the 
  black 
  thoracic 
  markings 
  are 
  more 
  extensive, 
  

   the 
  first 
  tergite 
  is 
  entirely 
  or 
  partly 
  black, 
  and 
  there 
  is 
  a 
  black 
  spot 
  on 
  

   the 
  frons 
  and 
  enclosing 
  the 
  ocelli. 
  

  

  Specimens: 
  9, 
  Carrville, 
  2,400 
  to 
  2,500 
  feet. 
  Trinity 
  County, 
  Calif., 
  

   May 
  17, 
  1934, 
  E. 
  C. 
  Van 
  Dyke 
  (San 
  Francisco), 
  d", 
  Davis, 
  Calif., 
  

   April 
  6, 
  1936, 
  R. 
  M. 
  Bohart 
  (Townes). 
  9, 
  Davis, 
  Calif., 
  April 
  23, 
  

   1936, 
  R. 
  M. 
  Bohart 
  (Townes). 
  9, 
  Davis, 
  Calif., 
  May 
  1, 
  1936, 
  R. 
  M. 
  

   Bohart 
  (Bohart). 
  cT, 
  Klamath 
  Falls, 
  Oreg., 
  June 
  16, 
  1922, 
  E. 
  C. 
  

   Van 
  Dyke 
  (San 
  Francisco). 
  

  

  3. 
  ROPRONIA 
  BREVICORNIS, 
  new 
  species 
  

  

  Figure 
  12, 
  d 
  

  

  Forewing 
  with 
  a 
  fuscous 
  spot 
  below 
  the 
  stigma 
  {Hg. 
  12, 
  d); 
  nervulus 
  

   meeting 
  the 
  medial 
  vein 
  beyond 
  the 
  basal 
  vein. 
  

  

  Forewing 
  about 
  3.9 
  mm. 
  long; 
  clypeus 
  shorter 
  and 
  with 
  larger 
  

   foveae 
  than 
  in 
  other 
  species 
  of 
  the 
  genus; 
  face 
  with 
  a 
  median 
  vertical 
  

   ridge 
  extending 
  its 
  length; 
  frons 
  and 
  top 
  of 
  head 
  with 
  medium-sized, 
  

   rather 
  close 
  punctures, 
  behind 
  the 
  oceli 
  with 
  small, 
  rather 
  distant 
  

   punctures; 
  second 
  flagellar 
  segment 
  of 
  male 
  about 
  1.6 
  as 
  long 
  as 
  deep. 
  

  

  