﻿art. 
  S 
  REVISION 
  OF 
  THE 
  GENUS 
  MICROBRACON 
  MUESEBECK 
  51 
  

  

  35. 
  MICROBRACON 
  TYCHII, 
  new 
  species 
  

   Fig. 
  21 
  

  

  Somewhat 
  resembles 
  hyslopi, 
  but 
  can 
  be 
  readily 
  distinguished 
  by 
  

   the 
  characters 
  given 
  in 
  the 
  key. 
  

  

  Length 
  3.8 
  mm. 
  Head 
  rather 
  thick 
  antero-posteriorly 
  at 
  insertion 
  

   of 
  antennae; 
  face 
  strongly 
  receding 
  below; 
  temples 
  broad; 
  trans- 
  

   verse 
  diameter 
  of 
  opening 
  between 
  clypeus 
  and 
  mandibles 
  but 
  very 
  

   little 
  greater 
  than 
  the 
  distance 
  from 
  the 
  opening 
  to 
  the 
  eyes 
  ; 
  malar 
  

   space 
  as 
  long 
  as 
  first 
  segment 
  of 
  antennal 
  flagellum, 
  or 
  very 
  nearly 
  ; 
  

   antennae 
  shorter 
  than 
  the 
  body, 
  28-segmented, 
  tapering 
  slightly 
  

   toward 
  tip, 
  the 
  basal 
  flagellar 
  segment 
  about 
  twice 
  as 
  long 
  as 
  broad, 
  

   all 
  the 
  following 
  considerably 
  longer 
  than 
  broad; 
  postocellar 
  line 
  

   about 
  twice, 
  ocell-ocular 
  line 
  three 
  times, 
  as 
  long 
  as 
  the 
  diameter 
  of 
  

   an 
  ocellus; 
  face 
  very 
  faintly 
  punctate 
  and 
  clothed 
  with 
  long 
  hairs; 
  

   frons 
  smooth 
  and 
  polished; 
  thorax 
  rather 
  robust, 
  although 
  about 
  

   twice 
  as 
  long 
  as 
  high, 
  smooth 
  and 
  polished 
  ; 
  parapsidal 
  furrows 
  with 
  

   scattered 
  long 
  hairs; 
  propodeum 
  smooth 
  and 
  polished 
  without 
  a 
  

   distinct 
  median 
  longitudinal 
  carina 
  posteriorly, 
  but 
  sometimes 
  with 
  

   a 
  faint 
  stub 
  of 
  a 
  median 
  ridge 
  at 
  apex; 
  metapleura, 
  propodeum 
  

   laterally, 
  and 
  the 
  posterior 
  coxae 
  clothed 
  with 
  long 
  silken 
  hairs; 
  

   second 
  abscissa 
  of 
  radius 
  usually 
  decidedly 
  less 
  than 
  twice 
  the 
  first; 
  

   the 
  latter 
  about 
  as 
  long 
  as 
  the 
  side 
  of 
  stigma 
  bordering 
  the 
  first 
  

   cubital 
  cell; 
  the 
  third 
  abscissa 
  of 
  radius 
  longer 
  than 
  the 
  first 
  and 
  

   second 
  abscissae 
  combined; 
  abdomen 
  fully 
  as 
  long 
  as 
  the 
  thorax; 
  

   plate 
  of 
  first 
  tergite 
  more 
  or 
  less 
  sculptured 
  laterally 
  and 
  pos- 
  

   teriori; 
  second 
  tergite 
  transverse, 
  about 
  as 
  long 
  as 
  the 
  third, 
  with 
  

   a 
  low 
  polished 
  tubercle 
  at 
  base 
  in 
  the 
  middle, 
  and 
  the 
  integument 
  

   immediately 
  adjoining 
  the 
  tubercle 
  more 
  or 
  less 
  finely 
  sculptured; 
  

   the 
  second 
  tergite 
  laterally 
  and 
  posteriorly, 
  and 
  the 
  third 
  and 
  fol- 
  

   lowing 
  tergites 
  entirely, 
  smooth 
  and 
  polished; 
  suturiform 
  articula- 
  

   tion 
  fine, 
  smooth, 
  not 
  at 
  all 
  foveolate; 
  ovipositor 
  sheaths 
  about 
  as 
  

   long 
  as 
  the 
  abdomen 
  or 
  slightly 
  shorter. 
  Black 
  ; 
  head 
  entirely 
  black 
  ; 
  

   thorax 
  black, 
  the 
  scutellum 
  usually 
  yellowish 
  or 
  ferruginous 
  at 
  apex 
  

   and 
  along 
  its 
  sides, 
  and 
  sometimes 
  poorly 
  defined 
  pale 
  markings 
  

   on 
  the 
  mesopleura 
  and 
  pectus; 
  wings 
  dusky 
  toward 
  base, 
  more 
  

   hyaline 
  apically; 
  all 
  coxae 
  and 
  trochanters, 
  and 
  more 
  or 
  less 
  of 
  the 
  

   femora 
  basally, 
  black; 
  the 
  tibiae 
  and 
  tarsi 
  more 
  or 
  less 
  blackish 
  or 
  

   fuscous; 
  abdomen 
  black 
  except 
  along 
  the 
  lateral 
  margins. 
  

  

  Male. 
  — 
  Essentially 
  as 
  in 
  the 
  female. 
  The 
  antennae 
  are 
  30-seg- 
  

   mented; 
  the 
  malar 
  space 
  is 
  a 
  little 
  shorter 
  and 
  the 
  opening 
  between 
  

   clypeus 
  and 
  mandibles 
  a 
  little 
  larger, 
  than 
  in 
  the 
  opposite 
  sex. 
  

  

  