﻿art. 
  8 
  REVISION 
  OF 
  THE 
  GENUS 
  MICROBRACON 
  MUESEBECK 
  25 
  

  

  Ferruginous; 
  frons, 
  vertex 
  and 
  occiput 
  piceous; 
  antennae 
  yellowish 
  

   below 
  toward 
  base, 
  brownish 
  to 
  brownish-black 
  above 
  and 
  apically; 
  

   wings 
  hyaline, 
  stigma 
  brown 
  ; 
  legs 
  ferruginous. 
  

  

  Type.— 
  Cat. 
  No. 
  26661, 
  U.S.N.M. 
  

  

  Type-locality. 
  — 
  Nassau 
  Count}'', 
  New 
  York. 
  

  

  Host. 
  — 
  The 
  type 
  is 
  labeled 
  " 
  With 
  larva 
  of 
  Listronotus 
  latiusculus." 
  

  

  Described 
  from 
  a 
  single 
  specimen 
  taken 
  by 
  F. 
  H. 
  Chittenden. 
  

  

  3. 
  MICROBRACON 
  SPHENOPHOR1, 
  new 
  species 
  

   Fig. 
  6 
  

  

  Female. 
  — 
  Length 
  3 
  mm. 
  Head 
  very 
  nearly 
  as 
  long 
  antero-pos- 
  

   teriorly 
  as 
  high; 
  e} 
  7 
  es 
  rather 
  small, 
  hardly 
  more 
  than 
  half 
  as 
  long 
  

   as 
  the 
  height 
  of 
  head 
  ; 
  distinctly 
  though 
  sparsely 
  hairy 
  ; 
  malar 
  space 
  

   short, 
  less 
  than 
  half 
  the 
  transverse 
  diameter 
  of 
  the 
  opening 
  between 
  

   clypeus 
  and 
  mandibles, 
  which 
  is 
  about 
  equal 
  to 
  the 
  distance 
  from 
  

   base 
  of 
  antennae 
  to 
  clypeus; 
  face 
  and 
  frons 
  closely 
  minutely 
  punc- 
  

   tate 
  and 
  opaque, 
  the 
  vertex 
  faintly 
  punctate; 
  vertex 
  and 
  temples 
  

   broad; 
  frons 
  without 
  a 
  distinct 
  median 
  groove 
  descending 
  from 
  

   median 
  ocellus; 
  ocell-ocular 
  line 
  more 
  than 
  three 
  times 
  the 
  diameter 
  

   of 
  an 
  ocellus; 
  antennae 
  missing 
  beyond 
  19th 
  segment; 
  first 
  flagellar 
  

   segment 
  about 
  twice 
  as 
  long 
  as 
  broad, 
  much 
  longer 
  than 
  the 
  second, 
  

   the 
  following 
  but 
  very 
  little 
  longer 
  than 
  broad; 
  mesoscutum 
  and 
  

   scutellum 
  very 
  faintly 
  punctate, 
  more 
  distinctly 
  so 
  in 
  the 
  region 
  of 
  

   the 
  parapsidal 
  grooves, 
  shining; 
  anteriorly 
  the 
  mesoscutum 
  is 
  very 
  

   smooth 
  and 
  shining, 
  not 
  distinctly 
  punctate; 
  pleura 
  entirely, 
  pro- 
  

   podeum 
  and 
  posterior 
  coxae, 
  minutely 
  evenly 
  punctate 
  and 
  sub- 
  

   opaque 
  ; 
  the 
  propodeum 
  with 
  a 
  more 
  or 
  less 
  distinct 
  median 
  furrow 
  ; 
  

   pubescence 
  on 
  mesoscutum 
  very 
  sparse 
  and 
  restricted 
  to 
  the 
  parap- 
  

   sidal 
  furrows; 
  fore 
  wing 
  with 
  radius 
  going 
  nearly 
  to 
  the 
  apex; 
  

   second 
  abscissa 
  of 
  radius 
  fully 
  twice 
  the 
  first, 
  but 
  the 
  first 
  and 
  

   second 
  combined 
  less 
  than 
  the 
  third; 
  the 
  first 
  abscissa 
  of 
  radius 
  

   about 
  half 
  the 
  first 
  intercubitus 
  ; 
  last 
  abscissa 
  of 
  cubitus 
  much 
  longer 
  

   than 
  the 
  preceding; 
  the 
  portion 
  of 
  cubitus 
  between 
  recurrent 
  and 
  

   intercubitus 
  very 
  short, 
  the 
  recurrent 
  nearly 
  interstitial 
  with 
  first 
  

   intercubitus; 
  posterior 
  femora 
  rather 
  stout, 
  but 
  little 
  more 
  than 
  

   three 
  times 
  as 
  long 
  as 
  broad 
  ; 
  abdomen 
  long 
  and 
  narrow 
  ; 
  first 
  

   tergite 
  evenly 
  punctate, 
  like 
  the 
  propodeum; 
  the 
  following 
  tergites 
  

   very 
  minutely 
  punctate, 
  becoming 
  gradually 
  less 
  distinctly 
  so 
  pos- 
  

   teriorly, 
  the 
  apical 
  tergites 
  being 
  smooth 
  and 
  shining; 
  ovipositor 
  

   sheaths 
  as 
  long 
  as 
  the 
  abdomen 
  beyond 
  the 
  first 
  tergite. 
  Entirely 
  

   yellow 
  including 
  antennae 
  and 
  legs; 
  wings 
  hyaline, 
  stigma 
  and 
  

   veins 
  yellowish. 
  

  

  Male. 
  — 
  Essentially 
  as 
  in 
  the 
  female; 
  the 
  malar 
  space 
  is 
  a 
  little 
  

   shorter; 
  the 
  antennae 
  are 
  36-segmented, 
  and 
  the 
  flagellar 
  segments 
  

  

  