﻿PBOCEEDTNGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  SOl 
  

  

  it. 
  In 
  fact, 
  it 
  remains 
  to 
  be 
  seen 
  to 
  how 
  many 
  different 
  species 
  of 
  

   Microbracon 
  are 
  parasitic 
  on 
  E. 
  insulana 
  and 
  E. 
  fabia. 
  

  

  Description. 
  The 
  following 
  is 
  the 
  description 
  of 
  Microbracon 
  (Rhogas) 
  

   lefroyi 
  given 
  by 
  Professor 
  Brues.(J 
  : 
  

  

  " 
  Female. 
  Length 
  2-3 
  mm.; 
  ovipositor 
  slightly 
  longer 
  than 
  the 
  

   abdomen, 
  but 
  not 
  quite 
  so 
  long 
  as 
  the 
  abdomen 
  and 
  propodeum 
  toge- 
  

   ther. 
  Body 
  honey-yellow, 
  varied 
  with 
  black 
  and 
  piceous, 
  legs 
  usually 
  

   somewhat 
  lighter 
  and 
  the 
  sides 
  of 
  the 
  abdomen 
  often 
  much 
  paler. 
  Black 
  

   markings 
  variable 
  ; 
  in 
  melanic 
  specimens 
  they 
  include 
  spot 
  on 
  front 
  

   above 
  base 
  of 
  atennse, 
  ocellar 
  space, 
  occiput, 
  antennae, 
  stripe 
  on 
  each 
  

   of 
  the 
  three 
  lobes 
  of 
  mesonotum, 
  scutellum, 
  propodeum, 
  irregular 
  marks 
  

   on 
  pleurae, 
  abdominal 
  segments 
  three 
  to 
  five, 
  except 
  narrow 
  lateral 
  

   border, 
  and 
  sheaths 
  of 
  ovipositor 
  ; 
  in 
  light 
  specimens 
  the 
  entire 
  body 
  

   is 
  pale-honey-yellow 
  with 
  only 
  the 
  flagellum 
  of 
  antennae, 
  tips 
  of 
  mandi- 
  

   bles, 
  ocellar 
  triangle, 
  clouds 
  on 
  the 
  second 
  and 
  third 
  segments, 
  and 
  

   ovipositor 
  black, 
  piceous 
  or 
  brown. 
  Wings 
  faintly 
  to 
  distinctly 
  tinged 
  

   with 
  brown, 
  the 
  stigma 
  and 
  veins 
  fuscous. 
  Antennae 
  25 
  to 
  27-iointed, 
  

   the 
  joints 
  slightly 
  decreasing 
  in 
  length 
  to 
  apex, 
  the 
  basal 
  ones 
  barely 
  

   twice 
  as 
  long 
  as 
  thick. 
  Mesonotum 
  shagreened, 
  scutellum 
  shining 
  ; 
  

   propodeum 
  distinctly 
  shagreened, 
  but 
  often 
  more 
  nearly 
  smooth 
  basally 
  

   toward 
  the 
  middle, 
  without 
  median 
  carina 
  except 
  at 
  extreme 
  apex 
  

   which 
  is 
  finely 
  areolate 
  ; 
  mesopleura 
  finely 
  shagreened, 
  with 
  a 
  narrow 
  

   polished 
  strip 
  along 
  its 
  posterior 
  margin. 
  Abdomen 
  broadly 
  oval 
  or 
  

   nearly 
  circular 
  in 
  outline 
  ; 
  first 
  segment 
  twice 
  as 
  wide 
  at 
  apex 
  as 
  at 
  base, 
  

   posterior 
  corners 
  separated 
  by 
  deep 
  grooves, 
  median 
  field 
  triangular, 
  

   second 
  segment 
  four 
  times 
  as 
  broad 
  as 
  long, 
  with 
  an 
  obsolete 
  median 
  

   carina 
  ; 
  third 
  segment 
  a 
  little 
  longer 
  than 
  the 
  second 
  ; 
  following 
  shorter, 
  

   entire 
  abdomen 
  except 
  corners 
  of 
  first 
  segment 
  finely 
  roughened, 
  without 
  

   distinct 
  punctures 
  or 
  reticulations, 
  except 
  sometimes 
  on 
  the 
  second 
  and 
  

   third 
  segments 
  near 
  the 
  middle 
  ; 
  second 
  suture 
  finely 
  crenulate. 
  Wings 
  

   are 
  figured 
  by 
  Dudgeon 
  and 
  Gough. 
  

  

  " 
  Male. 
  Length 
  2 
  mm. 
  Similar 
  to 
  the 
  female 
  with 
  the 
  antennae 
  24 
  

   to 
  25-jointed 
  and 
  the 
  head 
  and 
  thorax 
  generally 
  darker 
  ; 
  the 
  abdomen 
  

   has 
  the 
  sixth 
  segment 
  black 
  and 
  lacks 
  almost 
  all 
  the 
  yellow 
  at 
  the 
  sides 
  

   although 
  the 
  first 
  two 
  segments 
  are 
  yellow 
  and 
  usually 
  paler 
  than 
  in 
  

   the 
  female. 
  

  

  " 
  There 
  is 
  an 
  enormous 
  amount 
  of 
  colour 
  variation 
  in 
  the 
  large 
  

   number 
  of 
  specimens 
  examined, 
  a 
  slight 
  variation 
  in 
  the 
  number 
  of 
  

   antennal 
  joints 
  and 
  in 
  the 
  sculpture 
  of 
  the 
  propodeum 
  and 
  abdomen 
  

   but 
  none 
  of 
  these 
  seem 
  to 
  be 
  in 
  any 
  way 
  definite 
  or 
  correlated." 
  

  

  The 
  time 
  of 
  occurrence. 
  The 
  time 
  of 
  occurrence 
  of 
  Microbracon 
  

   efroyi 
  differs 
  in 
  the 
  different 
  localities 
  of 
  the 
  Punjab. 
  In 
  the 
  south 
  of 
  

  

  