﻿art. 
  8 
  REVISION 
  OF 
  THE 
  GENUS 
  MICROBRACON 
  MUESEBECTC 
  43 
  

  

  26. 
  MICROBRACON 
  UNCAS 
  Viereck 
  

  

  Microbracon 
  uncus 
  Viereck, 
  Bull. 
  22, 
  Conn. 
  Geol. 
  and 
  Nat. 
  Hist. 
  Survey, 
  1917 
  

   (1916), 
  pp. 
  206 
  and 
  20S. 
  

  

  Type. 
  — 
  In 
  the 
  State 
  Agricultural 
  Experiment 
  Station, 
  at 
  New 
  

   Haven, 
  Connecticut. 
  

  

  Exceedingly 
  similar 
  to 
  ashmeadi, 
  agreeing 
  in 
  habitus, 
  in 
  the 
  small 
  

   size 
  of 
  the 
  opening 
  between 
  clypeus 
  and 
  mandibles, 
  in 
  the 
  smooth 
  

   f 
  rons, 
  in 
  the 
  form, 
  sculpture 
  and 
  pubescence 
  of 
  thorax 
  ; 
  in 
  the 
  vena- 
  

   tion 
  of 
  the 
  wings; 
  in 
  the 
  stout 
  tarsi 
  and 
  large 
  last 
  tarsal 
  segment; 
  

   in 
  size, 
  shape 
  and 
  sculpture 
  of 
  the 
  abdomen 
  ; 
  in 
  the 
  hypopygium 
  not 
  

   attaining 
  apex 
  of 
  last 
  dorsal 
  abdominal 
  segment; 
  the 
  length 
  of 
  the 
  

   ovipositor 
  sheaths, 
  and 
  the 
  general 
  color. 
  Appears 
  to 
  differ 
  only 
  in 
  

   the 
  color 
  of 
  the 
  legs, 
  which 
  are 
  yellow, 
  with 
  the 
  posterior 
  coxae 
  a 
  lit- 
  

   tle 
  blackish 
  at 
  extreme 
  base. 
  The 
  propodeum 
  has, 
  in 
  addition 
  to 
  the 
  

   apical 
  median 
  carina, 
  a 
  slight 
  median 
  longitudinal 
  elevation 
  and 
  

   adjoining 
  fine 
  sculpture 
  at 
  base. 
  

  

  Distribution. 
  — 
  New 
  Haven, 
  Connecticut. 
  

  

  Host. 
  — 
  Unknown. 
  

  

  Known 
  only 
  from 
  the 
  type. 
  

  

  27. 
  MICROBRACON 
  ANGELESIUS 
  (Provancher) 
  

  

  Bracon 
  angclcsius 
  Provancher, 
  Addit. 
  faun. 
  Canad. 
  Hymen., 
  1S8S, 
  p. 
  372. 
  

   Bracon 
  cecidomyiue 
  Ashmead, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  vol. 
  11, 
  1SS9 
  (1888), 
  p. 
  616. 
  

   Bracon 
  euurae 
  Ashmead, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  vol. 
  11, 
  1889 
  (1888), 
  p. 
  621. 
  

  

  Type. 
  — 
  Yellow 
  label 
  1486, 
  Museum 
  of 
  Public 
  Instruction, 
  at 
  

   Quebec, 
  Canada; 
  the 
  head 
  is 
  broken 
  off, 
  but 
  is 
  mounted 
  on 
  one 
  of 
  

   the 
  labels. 
  The 
  types 
  of 
  cecidomyiae 
  (Cat. 
  No. 
  2903) 
  and 
  euurae 
  

   (Cat. 
  No. 
  2914) 
  are 
  in 
  the 
  United 
  States 
  National 
  Museum. 
  

  

  Distinguished 
  especially 
  by 
  the 
  very 
  slender 
  antennae, 
  the 
  long 
  

   ovipositor, 
  the 
  entirely 
  polished 
  abdomen, 
  hyaline 
  wings, 
  and 
  color 
  

   of 
  the 
  body. 
  Head 
  rather 
  thick 
  antero-posteriorly 
  ; 
  face 
  receding 
  

   rather 
  strongly; 
  antennae 
  of 
  the 
  type, 
  and 
  those 
  of 
  the 
  type 
  of 
  

   euurae, 
  are 
  broken 
  at 
  or 
  beyond 
  the 
  middle 
  ; 
  the 
  type 
  of 
  cecidomyiae 
  

   has 
  32-segmented 
  antennae; 
  in 
  all 
  three 
  the 
  first 
  flagellar 
  segment 
  

   is 
  nearly 
  three 
  times 
  as 
  long 
  as 
  broad, 
  and 
  all 
  the 
  following 
  seg- 
  

   ments 
  are 
  fully 
  twice 
  as 
  long 
  as 
  broad 
  ; 
  f 
  rons 
  polished 
  ; 
  thorax 
  pol- 
  

   ished; 
  parapsidal 
  grooves 
  very 
  sparsely 
  hairy 
  anteriorly, 
  more 
  

   closely 
  hairy 
  behind; 
  propodeum 
  smooth 
  and 
  polished, 
  with 
  a 
  short 
  

   stub 
  of 
  a 
  median 
  carina 
  at 
  apex 
  ; 
  anterior 
  wings 
  of 
  type 
  are 
  missing 
  ; 
  

   in 
  the 
  types 
  of 
  euurae 
  and 
  cecidomyiae 
  the 
  radial 
  cell 
  is 
  large 
  and 
  

   long, 
  and 
  the 
  second 
  abscissa 
  of 
  radius 
  is 
  not 
  distinctly 
  twice 
  as 
  long 
  

   as 
  the 
  first; 
  posterior 
  femora 
  slender; 
  abdomen 
  completely 
  smooth 
  

   and 
  polished; 
  ovipositor 
  sheaths 
  one 
  and 
  one-half 
  times 
  as 
  long 
  as 
  

  

  