﻿52 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  67 
  

  

  Type.— 
  Cat, 
  No. 
  26069, 
  U.S.N.M. 
  

   Type-locality. 
  — 
  Los 
  Angeles 
  County, 
  California. 
  

   Host. 
  — 
  Tychius 
  semisquamosus 
  LeConte. 
  

  

  Described 
  from 
  24 
  specimens 
  reared 
  in 
  May 
  and 
  June. 
  1892, 
  by 
  

   D. 
  W. 
  Coquillet. 
  

  

  36. 
  MICROBRACON 
  PINI, 
  new 
  species 
  

   Fig. 
  14 
  

  

  Closely 
  resembles 
  tychii, 
  but 
  differs 
  in 
  the 
  somewhat 
  shorter 
  malar 
  

   space, 
  the 
  larger 
  opening 
  between 
  clypeus 
  and 
  mandibles, 
  in 
  the 
  

   presence 
  of 
  a 
  distinct 
  sharp 
  stub 
  of 
  a 
  median 
  longitudinal 
  ridge 
  

   at 
  the 
  apex 
  of 
  propodeum; 
  in 
  the 
  first 
  abscissa 
  of 
  radius 
  being 
  

   shorter 
  than 
  the 
  inner 
  side 
  of 
  stigma, 
  and 
  in 
  the 
  legs 
  being 
  usually 
  

   less 
  black. 
  

  

  Female. 
  — 
  Length, 
  3 
  mm. 
  Head 
  much 
  thicker 
  antero-posteriorly 
  

   at 
  insertion 
  of 
  antennae 
  than 
  at 
  the 
  lower 
  margin 
  of 
  clypeus 
  ; 
  trans- 
  

   verse 
  diameter 
  of 
  opening 
  between 
  clypeus 
  and 
  mandibles 
  greater 
  than 
  

   the 
  distance 
  from 
  the 
  opening 
  to 
  the 
  eyes, 
  malar 
  space 
  much 
  shorter 
  

   than 
  the 
  first 
  segment 
  of 
  antennal 
  flagellum 
  ; 
  temples 
  not 
  as 
  broad 
  as 
  

   in 
  the 
  preceding 
  species, 
  postocellar 
  line 
  scarcely 
  one 
  and 
  one-half 
  

   times, 
  ocell-ocular 
  line 
  less 
  than 
  three 
  times, 
  the 
  diameter 
  of 
  an 
  ocel- 
  

   lus; 
  antennae 
  31-segmented, 
  the 
  first 
  flagellar 
  segment 
  about 
  twice 
  

   as 
  long 
  as 
  broad, 
  all 
  the 
  following 
  considerably 
  longer 
  than 
  broad 
  ; 
  

   face 
  and 
  frons 
  polished 
  ; 
  thorax 
  smooth 
  and 
  polished, 
  parapsidal 
  fur- 
  

   rows 
  sparsely 
  hairy; 
  propodeum 
  polished, 
  with 
  a 
  distinct 
  stub 
  of 
  a 
  

   median 
  longitudinal 
  ridge 
  at 
  apex; 
  second 
  abscissa 
  of 
  radius 
  de- 
  

   cidedly 
  less 
  than 
  twice 
  the 
  first; 
  the 
  third 
  abscissa 
  longer 
  than 
  the 
  

   first 
  and 
  second 
  abscissae 
  combined; 
  last 
  abscissa 
  of 
  cubitus 
  much 
  

   longer 
  than 
  the 
  preceding 
  abscissa; 
  the 
  portion 
  of 
  cubitus 
  between 
  

   recurrent 
  and 
  first 
  intercubitus 
  much 
  more 
  than 
  half 
  as 
  long 
  as 
  the 
  

   recurrent; 
  abdomen 
  long-oval; 
  plate 
  of 
  first 
  tergite 
  more 
  or 
  less 
  

   sculptured 
  laterally 
  and 
  apically; 
  second 
  tergite 
  reguloso-striate 
  

   medially, 
  smooth 
  and 
  shining 
  laterally 
  ; 
  third 
  and 
  following 
  tergites 
  

   smooth 
  and 
  polished; 
  rarely 
  the 
  third 
  faintly 
  sculptured; 
  ovipositor 
  

   sheaths 
  about 
  as 
  long 
  as 
  the 
  abdomen 
  beyond 
  first 
  tergite. 
  Black; 
  

   head 
  and 
  thorax 
  wholly 
  black; 
  wings 
  very 
  slightly 
  dusky; 
  coxae 
  

   usually 
  mostly 
  black 
  or 
  blackish, 
  remainder 
  of 
  legs 
  brownish 
  with 
  

   more 
  or 
  less 
  inf 
  uscation 
  ; 
  abdomen 
  black 
  ; 
  second 
  tergite 
  usually 
  yel- 
  

   lowish-brown 
  except 
  medially 
  where 
  it 
  is 
  black; 
  third 
  tergite 
  usually 
  

   somewhat 
  yellowish 
  along 
  basal 
  margin 
  and 
  laterally. 
  

  

  Male, 
  — 
  Agrees 
  with 
  the 
  female 
  except 
  for 
  the 
  usual 
  sexual 
  dif- 
  

   ferences. 
  Antennae 
  33-segmented, 
  the 
  flagellar 
  segments 
  a 
  little 
  

   more 
  slender 
  than 
  in 
  the 
  female. 
  

  

  Type.— 
  Cat. 
  No. 
  27143, 
  U.S.N.M. 
  

  

  Type-locality. 
  — 
  Gardner, 
  Massachusetts. 
  

  

  