﻿74 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL, 
  MUSEUM 
  vol. 
  67 
  

  

  sheaths 
  as 
  long 
  as 
  the 
  abdomen 
  beyond 
  second 
  tergite. 
  Face 
  yellow 
  ; 
  

   frons, 
  vertex, 
  and 
  occiput 
  more 
  or 
  less 
  piceous 
  or 
  blackish; 
  thorax 
  

   black; 
  legs, 
  including 
  all 
  coxae, 
  yellow; 
  wings 
  nearly 
  hyaline; 
  ab- 
  

   domen 
  yellow, 
  first 
  tergite 
  black, 
  the 
  apical 
  tergites 
  brownish. 
  

  

  Distribution. 
  — 
  Canada. 
  

  

  Host. 
  — 
  Unknown. 
  

  

  The 
  unique 
  type 
  is 
  the 
  only 
  specimen 
  of 
  this 
  species 
  that 
  I 
  have 
  

   seen. 
  

  

  63. 
  MICROBRACON 
  ARGUTATOR 
  (Say) 
  

   Fig. 
  10 
  

   Bracon 
  argutator 
  Say, 
  Journ. 
  Bost. 
  Soe. 
  Nat. 
  Hist, 
  vol. 
  1, 
  1836, 
  p. 
  233. 
  

  

  Type. 
  — 
  Lost. 
  

  

  The 
  species 
  here 
  regarded 
  as 
  argutator 
  agrees 
  very 
  well 
  with 
  Say's 
  

   description, 
  and 
  it 
  seems 
  more 
  desirable 
  to 
  identify 
  it 
  as 
  that 
  species 
  

   than 
  to 
  describe 
  it 
  as 
  new. 
  Head 
  rather 
  thick 
  at 
  insertion 
  of 
  an- 
  

   tennae 
  ; 
  temples 
  broad 
  ; 
  malar 
  space 
  in 
  the 
  female 
  nearly 
  as 
  long 
  as 
  

   the 
  first 
  segment 
  of 
  antenna! 
  flagellum 
  ; 
  antennae 
  normally 
  25 
  to 
  30- 
  

   segmented, 
  shorter 
  than 
  the 
  body 
  in 
  the 
  female 
  ; 
  eyes 
  short-oval 
  ; 
  face 
  

   and 
  frons 
  finely 
  punctate; 
  thorax 
  smooth 
  and 
  polished; 
  parapsidal 
  

   grooves 
  weakly 
  hairy 
  ; 
  propodeum 
  usually 
  mostly 
  weakly 
  reticulately 
  

   sculptured, 
  and 
  more 
  or 
  less 
  rugulose 
  along 
  the 
  median 
  line; 
  second 
  

   abscissa 
  of 
  radius 
  about 
  twice 
  as 
  long 
  as 
  the 
  first, 
  the 
  third 
  slightly 
  

   longer 
  than 
  the 
  first 
  and 
  second 
  combined; 
  abdomen 
  long-oval, 
  the 
  

   first 
  tergite 
  sculptured 
  apically 
  and 
  laterally; 
  the 
  second 
  granular, 
  

   usually 
  as 
  long 
  as 
  the 
  first 
  and 
  longer 
  than 
  the 
  third, 
  more 
  than 
  half 
  

   as 
  long 
  as 
  broad 
  at 
  base 
  ; 
  third, 
  fourth 
  and 
  fifth 
  tergites 
  much 
  more 
  

   delicately 
  sculptured, 
  shining; 
  ovipositor 
  sheaths 
  projecting 
  the 
  

   length 
  of 
  the 
  abdomen 
  beyond 
  second 
  tergite 
  or 
  a 
  little 
  more. 
  Yel- 
  

   low 
  ; 
  sometimes 
  entirely 
  yellow, 
  with 
  only 
  a 
  spot 
  enclosing 
  the 
  ocelli 
  

   black; 
  the 
  abdomen 
  often 
  of 
  a 
  paler 
  yellow 
  than 
  the 
  thorax; 
  some- 
  

   times 
  the 
  occiput, 
  mesonotal 
  lobes, 
  propodeum, 
  pectus 
  and 
  first 
  ab- 
  

   dominal 
  tergite 
  more 
  or 
  less 
  blackish; 
  wings 
  slightly 
  dusky, 
  the 
  

   stigma 
  more 
  or 
  less 
  yellowish 
  ; 
  legs, 
  including 
  all 
  coxae, 
  yellow. 
  

  

  Distribution. 
  — 
  Indiana 
  ; 
  Missouri. 
  

  

  Host. 
  — 
  " 
  Lepidopterous 
  larva 
  boring 
  in 
  Elymusf 
  Saluria, 
  species. 
  

  

  The 
  United 
  States 
  National 
  Museum 
  has 
  considerable 
  material 
  

   reared 
  from 
  the 
  above 
  hosts 
  at 
  Lafayette, 
  Indiana 
  and 
  Charleston, 
  

   Missouri, 
  by 
  C. 
  N. 
  Ainslie, 
  in 
  the 
  Bureau 
  of 
  Entomology, 
  under 
  

   Webster 
  Nos. 
  14705 
  and 
  14781. 
  

  

  64. 
  MICROBRACON 
  GERAEI, 
  new 
  species 
  

  

  Very 
  similar 
  to 
  argutator, 
  but 
  distinguished 
  as 
  noted 
  in 
  the 
  table 
  

   to 
  species. 
  

  

  Female. 
  — 
  Length, 
  3 
  mm. 
  Head 
  rather 
  thick 
  at 
  insertion 
  of 
  an- 
  

   tennae 
  ; 
  malar 
  space 
  much 
  shorter 
  than 
  first 
  flagellar 
  segment 
  of 
  an- 
  

  

  