﻿58 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.67 
  

  

  foveolate, 
  and 
  somewhat 
  arcuate 
  mediall} 
  7 
  , 
  the 
  second 
  tergite 
  

   being 
  a 
  little 
  emarginate 
  behind; 
  hypopygium 
  large; 
  ovipositor 
  

   sheaths 
  nearly 
  as 
  long 
  as 
  the 
  abdomen. 
  Face 
  yellow 
  ; 
  antennae 
  most- 
  

   ly 
  yellowish 
  ; 
  f 
  rons, 
  vertex 
  and 
  occiput 
  mostly 
  piceous 
  to 
  blackish 
  ; 
  

   thorax 
  wholly 
  black 
  ; 
  legs, 
  including 
  coxae, 
  bright 
  yellow 
  ; 
  wings 
  clear 
  

   hyaline; 
  abdomen 
  mostly 
  blackish 
  above, 
  yellow 
  laterally. 
  

  

  Distribution. 
  — 
  New 
  Canaan, 
  Connecticut. 
  

  

  Host. 
  — 
  Unknown. 
  

  

  Known 
  only 
  from 
  the 
  unique 
  type. 
  

  

  43. 
  MICROBRACON 
  ATRICOLLIS 
  (Ashmead) 
  

  

  Bracon 
  atricollis 
  Ashmead, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  vol. 
  11, 
  1SS9 
  (1888), 
  p. 
  622. 
  

   Micro~bracon 
  naioaasorum 
  Vieeeck, 
  Bull. 
  22, 
  Conn. 
  Geol. 
  and 
  Nat. 
  Hist. 
  Sur- 
  

   vey, 
  1917 
  (1916), 
  pp. 
  205, 
  207. 
  

  

  Type. 
  — 
  Cat. 
  No. 
  2917, 
  U.S.N.M. 
  The 
  type 
  of 
  nawaasorum 
  is 
  in 
  

   the 
  Connecticut 
  Agricultural 
  Experiment 
  Station 
  at 
  New 
  Haven. 
  

  

  Very 
  distinct 
  from 
  all 
  other 
  species 
  of 
  the 
  genus. 
  Head 
  thick 
  at 
  

   insertion 
  of 
  antennae 
  ; 
  face 
  and 
  f 
  rons 
  minutely 
  granular 
  ; 
  ocell-ocular 
  

   line 
  at 
  least 
  three 
  times 
  the 
  diameter 
  of 
  an 
  ocellus; 
  antennae 
  long, 
  

   slender, 
  usually 
  about 
  40-segmented, 
  most 
  of 
  the 
  flagellar 
  segments 
  

   twice 
  as 
  long 
  as 
  broad; 
  thorax 
  long, 
  mostly 
  smooth 
  and 
  polished; 
  

   parapsidal 
  grooves 
  sparsely 
  hairy 
  ; 
  propodeum 
  finely 
  rugulose 
  ; 
  meta- 
  

   pleura 
  granular 
  ; 
  the 
  metapleura 
  and 
  the 
  propodeum 
  laterally 
  thickly 
  

   clothed 
  with 
  long 
  hairs 
  ; 
  posterior 
  tibiae 
  and 
  tarsi 
  slender 
  ; 
  last 
  seg- 
  

   ment 
  of 
  all 
  tarsi 
  long, 
  stout, 
  the 
  claws 
  large; 
  wings 
  long, 
  the 
  entire 
  

   wing 
  membrane 
  uniformly 
  very 
  densely 
  covered 
  with 
  very 
  short 
  

   pubescence 
  ; 
  stigma 
  rather 
  long 
  and 
  narrow 
  ; 
  radius 
  arising 
  at 
  or 
  be- 
  

   fore 
  its 
  middle 
  and 
  going 
  to 
  extreme 
  apex 
  of 
  wing 
  ; 
  first 
  abscissa 
  of 
  

   radius 
  a 
  little 
  longer 
  than 
  the 
  recurrent 
  vein 
  ; 
  the 
  second 
  abscissa 
  of 
  

   radius 
  more 
  than 
  twice 
  the 
  first; 
  the 
  third 
  as 
  long 
  as 
  the 
  first 
  and 
  

   second 
  combined 
  and 
  almost 
  on 
  a 
  straight 
  line 
  with 
  the 
  second 
  ; 
  the 
  

   portion 
  of 
  cubitus 
  between 
  recurrent 
  and 
  intercubitus 
  more 
  than 
  half 
  

   as 
  long 
  as 
  the 
  recurrent; 
  lower 
  side 
  of 
  cubital 
  cell 
  decidedly 
  more 
  

   than 
  twice 
  the 
  first 
  intercubitus 
  and 
  longer 
  than 
  the 
  lower 
  side 
  of 
  third 
  

   cubital 
  cell 
  ; 
  last 
  abscissa 
  of 
  radius 
  longer 
  than 
  last 
  abscissa 
  of 
  cubi- 
  

   tus; 
  cubitus 
  and 
  subdiscoideus 
  nearly 
  parallel, 
  the 
  second 
  discoidal 
  

   cell 
  not 
  or 
  scarcely 
  broadening 
  toward 
  apex; 
  the 
  chitinized 
  plate 
  of 
  

   first 
  tergite 
  strongly 
  rugose; 
  second 
  tergite 
  longer 
  than 
  the 
  third, 
  

   finely 
  granularly 
  rugulose, 
  much 
  less 
  strongly 
  sculptured 
  than 
  first 
  

   tergite; 
  third, 
  fourth, 
  and 
  fifth 
  tergites 
  very 
  delicately 
  sculptured, 
  

   the 
  fifth 
  only 
  faintly; 
  ovipositor 
  as 
  long 
  as 
  the 
  abdomen 
  or 
  a 
  little 
  

   longer. 
  Head 
  yellow; 
  thorax 
  mostly 
  yellow; 
  pronotum 
  above, 
  propo- 
  

   deum, 
  and 
  metapleura 
  partly, 
  blackish; 
  abdomen 
  yellow, 
  the 
  first 
  

   tergite 
  black, 
  the 
  following 
  tergites 
  more 
  or 
  less 
  blackish 
  medially. 
  

  

  