﻿34 
  PKOCEEDINGS 
  OF 
  THE 
  NATIONAL, 
  MUSEUM 
  vol. 
  C7 
  

  

  much 
  longer 
  than 
  the 
  second 
  ; 
  malar 
  space 
  shorter 
  than 
  first 
  flagellar 
  

   segment 
  ; 
  transverse 
  diameter 
  of 
  opening 
  between 
  clypeus 
  and 
  mandi- 
  

   bles 
  much 
  greater 
  than 
  the 
  distance 
  from 
  the 
  opening 
  to 
  the 
  eyes 
  and 
  

   about 
  twice 
  the 
  malar 
  space 
  ; 
  face 
  minutely 
  sculptured 
  ; 
  f 
  rons 
  smooth 
  

   and 
  polished; 
  thorax 
  smooth 
  and 
  polished; 
  parapsidal 
  furrows 
  

   sparsely 
  hairy; 
  propodeum 
  polished 
  with 
  a 
  stub 
  of 
  a 
  median 
  ridge 
  

   at 
  apex, 
  and 
  a 
  more 
  or 
  less 
  distinct 
  median 
  roughened 
  groove 
  from 
  

   the 
  anterior 
  end 
  of 
  this 
  stub 
  to 
  the 
  base 
  of 
  propodeum; 
  propodeum 
  

   also 
  provided 
  with 
  two 
  lateral 
  oblique 
  foveolate 
  grooves; 
  radius 
  

   arising 
  distinctly 
  beyond 
  middle 
  of 
  stigma; 
  first 
  abscissa 
  of 
  radius 
  

   less 
  than 
  one-third 
  the 
  length 
  of 
  the 
  second 
  abscissa 
  and 
  less 
  than 
  

   half 
  the 
  first 
  intercubitus 
  ; 
  radius 
  attaining 
  wing 
  margin 
  much 
  before 
  

   apex 
  of 
  wing; 
  the 
  portion 
  of 
  cubitus 
  between 
  recurrent 
  and 
  first 
  in- 
  

   tercubitus 
  very 
  short, 
  the 
  recurrent 
  very 
  nearly 
  interstitial 
  with 
  first 
  

   intercubitus; 
  first 
  abdominal 
  tergite 
  finely 
  sculptured 
  apically 
  and 
  

   laterally 
  ; 
  second 
  tergite 
  very 
  minutley 
  granular 
  with 
  a 
  more 
  strongly 
  

   roughened 
  area 
  medially 
  ; 
  following 
  tergites 
  very 
  delicately 
  punctate, 
  

   the 
  apical 
  tergites 
  very 
  faintly 
  or 
  indistinctly 
  so 
  ; 
  suturif 
  orm 
  articu- 
  

   lation 
  very 
  fine, 
  arcuate, 
  not 
  distinctty 
  foveolate; 
  ovipositor 
  sheaths 
  

   just 
  about 
  as 
  long 
  as 
  the 
  abdomen. 
  Mostly 
  yellowish; 
  dorsum 
  of 
  

   thorax 
  more 
  or 
  less 
  blackish 
  ; 
  propodeum 
  and 
  first 
  abdominal 
  tergite 
  

   blackish 
  ; 
  wings 
  slightly 
  fuliginous 
  ; 
  legs, 
  including 
  all 
  coxae, 
  yellow. 
  

  

  Distribution. 
  — 
  West 
  Thompson, 
  Connecticut; 
  Algonquin, 
  Illinois. 
  

  

  Host. 
  — 
  Unknown. 
  

  

  Known 
  only 
  from 
  the 
  type, 
  and 
  one 
  additional 
  specimen, 
  a 
  homo- 
  

   type 
  determined 
  by 
  Muesebeck, 
  labeled 
  "Algonquin, 
  111. 
  5-16-96, 
  

   No. 
  6603." 
  The 
  latter 
  is 
  in 
  the 
  United 
  States 
  National 
  Museum. 
  

  

  14. 
  MICROBRACON 
  PYRALJDIPHAGUS, 
  new 
  species 
  

  

  Resembles 
  scanticorum 
  in 
  that 
  the 
  radius 
  arises 
  from 
  beyond 
  the 
  

   middle 
  of 
  a 
  rather 
  long, 
  narrow, 
  non-angular 
  stigma; 
  in 
  the 
  very 
  

   short 
  first 
  abscissa 
  of 
  radius, 
  and 
  the 
  rather 
  short 
  radial 
  cell; 
  it 
  

   differs 
  from 
  that 
  species 
  particularly 
  as 
  noted 
  in 
  the 
  key. 
  

  

  Female. 
  — 
  Length, 
  3.3 
  mm. 
  Head 
  transverse 
  but 
  rather 
  thick 
  

   antero-posteriorly 
  at 
  insertion 
  of 
  antennae; 
  face 
  finely 
  granular 
  

   and 
  opaque; 
  frons 
  smooth 
  and 
  polished; 
  antennae 
  36-segmented, 
  

   slightly 
  shorter 
  than 
  the 
  body; 
  first 
  flagellar 
  segment 
  about 
  twice 
  

   as 
  long 
  as 
  thick; 
  mesonotum 
  and 
  mesopleura 
  smooth 
  and 
  polished; 
  

   parapsidal 
  grooves 
  sparsely 
  pubescent, 
  more 
  thickly 
  so 
  posteriorly; 
  

   propodeum 
  finely 
  rugulose 
  over 
  most 
  of 
  its 
  surface 
  and 
  provided 
  

   with 
  a 
  distinct 
  median 
  longitudinal 
  carina 
  ; 
  metapleura 
  finely 
  sculp- 
  

   tured; 
  stigma 
  rather 
  narrow, 
  not 
  angular; 
  the 
  radius 
  arising 
  dis- 
  

   tinctly 
  beyond 
  the 
  middle 
  of 
  stigma; 
  radial 
  cell 
  short, 
  the 
  radius 
  

   attaining 
  wing 
  margin 
  much 
  before 
  apex 
  of 
  wing; 
  first 
  abscissa 
  of 
  

   radius 
  short, 
  decidedly 
  less 
  than 
  half 
  the 
  first 
  intercubitus 
  and 
  

  

  