﻿62 
  PKOCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  67 
  

  

  Malar 
  space 
  in 
  the 
  female 
  nearly 
  as 
  long 
  as 
  the 
  transverse 
  diameter 
  

   .of 
  the 
  opening 
  between 
  the 
  clypeus 
  and 
  mandibles 
  ; 
  in 
  the 
  male 
  con- 
  

   siderably 
  shorter; 
  postocellar 
  line 
  slightly 
  longer 
  than 
  the 
  diameter 
  

   of 
  an 
  ocellus 
  ; 
  ocell-ocular 
  line 
  less 
  than 
  three 
  times 
  as 
  long 
  as 
  the 
  di- 
  

   ameter 
  of 
  an 
  ocellus; 
  antennae 
  about 
  as 
  long 
  as 
  the 
  body, 
  usually 
  24 
  

   to 
  28-segmented, 
  all 
  the 
  flagellar 
  segments 
  much 
  longer 
  than 
  tiroad 
  ; 
  

   face 
  and 
  f 
  rons 
  minutely 
  punctate 
  or 
  reticulate, 
  opaque 
  ; 
  thorax 
  stout, 
  

   smooth 
  and 
  polished 
  ; 
  radius 
  arising 
  before 
  middle 
  of 
  stigma 
  ; 
  second 
  

   abscissa 
  of 
  radius 
  about 
  twice 
  the 
  first; 
  abdomen 
  short 
  and 
  broad, 
  

   especially 
  in 
  the 
  female; 
  plate 
  of 
  first 
  tergite 
  broad, 
  more 
  or 
  less 
  

   sculptured 
  ; 
  second 
  tergite 
  rugulose, 
  shining 
  ; 
  suturif 
  orm 
  articulation 
  

   broad, 
  f 
  oveolate 
  ; 
  third, 
  fourth 
  and 
  fifth 
  tergites 
  granular 
  ; 
  ovipositor 
  

   sheaths 
  about 
  as 
  long 
  as 
  the 
  dorsum 
  of 
  abdomen 
  beyond 
  first 
  tergite, 
  

   or 
  nearly. 
  Head 
  black, 
  sometimes 
  with 
  ferruginous 
  orbital 
  lines; 
  

   thorax 
  black, 
  the 
  parapsidal 
  furrows 
  and 
  a 
  spot 
  behind 
  middle 
  lobe 
  

   of 
  mesoscutum 
  sometimes 
  ferruginous; 
  wings 
  strongly 
  infumated, 
  

   more 
  weakly 
  so 
  toward 
  apex; 
  coxae 
  and 
  trochanters 
  black; 
  femora 
  

   sometimes 
  more 
  or 
  less 
  black 
  ; 
  posterior 
  tibiae 
  black 
  except 
  at 
  extreme 
  

   base 
  ; 
  tarsi 
  blackish 
  ; 
  abdomen 
  red, 
  the 
  first 
  tergite 
  black 
  ; 
  sometimes, 
  

   especially 
  in 
  the 
  males, 
  more 
  or 
  less 
  of 
  the 
  abdomen 
  beyond 
  first 
  

   tergite 
  also 
  blackish. 
  

  

  Distribution. 
  — 
  Plummer 
  Island, 
  Maryland. 
  

  

  Host. 
  — 
  Hemimene 
  flummerana 
  Busck. 
  

  

  In 
  addition 
  to 
  the 
  types 
  the 
  National 
  Museum 
  has 
  a 
  large 
  series 
  

   bearing 
  the 
  same 
  data 
  as 
  the 
  type 
  specimens. 
  

  

  49. 
  MICROBRACON 
  OENOTHERAE. 
  new 
  species 
  

  

  Very 
  similar 
  to 
  mellitor, 
  from 
  which 
  it 
  differs 
  in 
  having 
  usually 
  a 
  

   complete 
  median 
  longitudinal 
  carina 
  on 
  the 
  propodeum, 
  in 
  the 
  

   shorter 
  second 
  abdominal 
  tergite, 
  and 
  the 
  relatively 
  longer 
  flagellar 
  

   segments 
  of 
  the 
  antennae. 
  

  

  Female. 
  — 
  Length, 
  4 
  mm. 
  ; 
  head 
  rather 
  thick 
  at 
  insertion 
  of 
  anten- 
  

   nae 
  ; 
  transverse 
  diameter 
  of 
  the 
  opening 
  between 
  clypeus 
  and 
  mandi- 
  

   bles 
  but 
  very 
  slightly 
  longer 
  than 
  the 
  distance 
  from 
  the 
  opening 
  to 
  

   the 
  eyes; 
  antennae 
  35-segmented, 
  the 
  first 
  flagellar 
  segment 
  twice 
  as 
  

   long 
  as 
  broad, 
  all 
  the 
  following 
  much 
  longer 
  than 
  broad; 
  face 
  and 
  

   frons 
  very 
  faintly 
  punctate; 
  thorax 
  stout, 
  smooth 
  and 
  polished; 
  

   parapsidal 
  grooves 
  sparsely 
  hairy 
  ; 
  propodeum 
  polished 
  with 
  a 
  com- 
  

   plete 
  median 
  longitudinal 
  carina; 
  second 
  abscissa 
  of 
  radius 
  more 
  than 
  

   twice 
  as 
  long 
  as 
  the 
  first 
  ; 
  the 
  third 
  slightly 
  longer 
  than 
  the 
  first 
  and 
  

   second 
  combined; 
  abdomen 
  long-oval; 
  plate 
  of 
  first 
  tergite 
  more 
  or 
  

   less 
  sculptured 
  apically 
  and 
  laterally; 
  second 
  tergite 
  very 
  short, 
  

   much 
  shorter 
  than 
  the 
  third, 
  with 
  a 
  large 
  median 
  shining 
  rugose 
  

   area; 
  remainder 
  of 
  second 
  tergite 
  granular; 
  third, 
  fourth, 
  fifth 
  and 
  

  

  