﻿80 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.67 
  

  

  second 
  abscissa 
  of 
  radius 
  ; 
  radius 
  going 
  to 
  the 
  wing 
  apex, 
  the 
  radial 
  

   cell 
  broad 
  ; 
  first 
  abdominal 
  tergite 
  sculptured 
  at 
  apex 
  ; 
  second, 
  third, 
  

   fourth 
  and 
  fifth 
  tergites 
  rather 
  evenly 
  closely 
  granular, 
  the 
  fourth 
  

   and 
  fifth 
  a 
  little 
  less 
  strongly 
  so 
  than 
  the 
  second 
  and 
  third. 
  Entire 
  

   body 
  honey-yellow 
  except 
  the 
  head 
  which 
  is 
  piceous 
  black; 
  the 
  face 
  

   mostly 
  blackish; 
  legs, 
  including 
  all 
  coxae, 
  yellow; 
  wings 
  slightly 
  

   dusky. 
  

  

  Distribution. 
  — 
  West 
  Thompson, 
  Connecticut. 
  

  

  Host. 
  — 
  Unknown. 
  

  

  Known 
  only 
  from 
  the 
  holotype. 
  

  

  72. 
  MICROBRACON 
  RHYSSEMATI 
  (Ashmead) 
  

  

  Bracon 
  rhyssemati 
  Ashmead, 
  Joum. 
  Cincinnati 
  Soc. 
  Nat. 
  Hist., 
  1894, 
  p. 
  46. 
  

  

  Type.— 
  Cat. 
  No. 
  1362, 
  U.S.N.M. 
  

  

  Face 
  and 
  frons 
  very 
  minutely 
  punctate; 
  antennae 
  28 
  to 
  30-seg- 
  

   mented, 
  all 
  of 
  the 
  flagellar 
  segments 
  much 
  longer 
  than 
  broad 
  ; 
  trans- 
  

   verse 
  diameter 
  of 
  the 
  opening 
  between 
  clypeus 
  and 
  mandibles 
  at 
  least 
  

   twice 
  as 
  long 
  as 
  the 
  malar 
  space 
  ; 
  thorax 
  smooth 
  and 
  polished 
  ; 
  parap- 
  

   sidal 
  furrows 
  very 
  sparsely 
  hairy 
  ; 
  propodeum 
  polished, 
  with 
  a 
  medi- 
  

   an 
  longitudinal 
  carina 
  at 
  least 
  on 
  the 
  apical 
  third, 
  this 
  carina 
  some- 
  

   times 
  nearly 
  complete, 
  radius 
  going 
  practically 
  to 
  the 
  wing 
  apex; 
  

   second 
  abscissa 
  of 
  radius 
  twice 
  as 
  long 
  as 
  the 
  first, 
  the 
  third 
  scarcely 
  

   as 
  long 
  as 
  the 
  first 
  and 
  second 
  combined; 
  first 
  abdominal 
  tergite 
  

   finely 
  sculptured 
  at 
  apex; 
  second, 
  third, 
  fourth, 
  and 
  fifth 
  tergites 
  

   strongly 
  granular, 
  opaque; 
  sixth 
  tergite 
  faintly 
  punctate, 
  shining. 
  

   "Yellow, 
  the 
  mesonotal 
  lobes, 
  disk 
  of 
  first 
  abdominal 
  tergite 
  and 
  the 
  

   apical 
  tergites 
  very 
  slightly 
  dusky; 
  wings 
  faintly 
  dusky; 
  legs, 
  in- 
  

   cluding 
  coxae, 
  yellow. 
  The 
  female 
  is 
  unknown. 
  

  

  Distribution. 
  — 
  Ohio. 
  

  

  Host. 
  — 
  Rhyssematus 
  lineaticollis 
  Say. 
  

  

  In 
  addition 
  to 
  the 
  three 
  specimens 
  of 
  the 
  type 
  series 
  the 
  United 
  

   States 
  National 
  Museum 
  has 
  one 
  male 
  specimen 
  from 
  Columbus, 
  

   Ohio. 
  

  

  73. 
  MICROBRACON 
  COOKII 
  (Ashmead) 
  

  

  Bracon 
  cookii 
  Ashmead, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  vol. 
  11,. 
  1889 
  (1S8S), 
  p. 
  624. 
  

  

  Type.— 
  Cat. 
  No. 
  2921, 
  U.S.N.M. 
  

  

  Very 
  similar 
  to 
  furtivus; 
  it 
  cannot 
  be 
  satisfactorily 
  distinguished 
  

   from 
  that 
  species 
  on 
  the 
  basis 
  of 
  the 
  male 
  holotype, 
  the 
  only 
  speci- 
  

   men 
  of 
  cookii 
  that 
  I 
  have 
  seen. 
  This 
  specimen, 
  however, 
  has 
  a 
  large 
  

   quadrate 
  blackish 
  spot 
  on 
  the 
  face, 
  in 
  which 
  respect 
  it 
  differs 
  from 
  

   all 
  specimens 
  of 
  furtivus 
  examined. 
  The 
  host 
  record, 
  if 
  correct, 
  

   should 
  leave 
  little 
  doubt 
  that 
  cookii 
  represents 
  a 
  distinct 
  species. 
  The 
  

   following 
  notes 
  are 
  based 
  on 
  the 
  type 
  : 
  Ocell-ocular 
  line 
  about 
  twice 
  

   as 
  long 
  as 
  the 
  diameter 
  of 
  an 
  ocellus; 
  face 
  and 
  frons 
  very 
  minutely 
  

   punctate 
  ; 
  antennae 
  broken 
  ; 
  thorax 
  smooth 
  and 
  polished 
  ; 
  propodeum 
  

  

  