﻿new 
  Species 
  of 
  Diploptera. 
  107 
  

  

  leveloping 
  in 
  the 
  mouth. 
  Then 
  there 
  was 
  more 
  trembling 
  

   md 
  effort, 
  and 
  the 
  front 
  pair 
  of 
  legs 
  were 
  used 
  to 
  brush 
  the 
  

   lrop 
  off 
  the 
  mandibles. 
  There 
  were 
  also 
  frequent 
  visits' 
  paid 
  

   ;o 
  the 
  interior, 
  so 
  that 
  the 
  entrance 
  was 
  in 
  use 
  almost 
  the 
  

   tvhole 
  time, 
  thus 
  making 
  it 
  impossible 
  to 
  count 
  accurately." 
  

  

  Then 
  follows 
  an 
  account 
  of 
  the 
  parasite 
  and 
  its 
  method 
  of 
  

   oviposition. 
  

  

  " 
  The 
  whole 
  time 
  of 
  my 
  observation, 
  about 
  two 
  hours, 
  

   there 
  were 
  four 
  or 
  five 
  Epitelia 
  aculeata 
  walking 
  about 
  on 
  

   the 
  outside 
  of 
  the 
  tent. 
  Every 
  now 
  and 
  then 
  one 
  would 
  get 
  

   close 
  to 
  the 
  base 
  and 
  pierce 
  it 
  with 
  its 
  ovipositor. 
  I 
  timed 
  

   one 
  for 
  five 
  or 
  six 
  egg-layings, 
  and 
  should 
  give 
  an 
  average 
  of 
  

   two 
  or 
  three 
  minutes' 
  interval 
  between 
  the 
  eggs. 
  It 
  was, 
  

   however, 
  very 
  difficult 
  to 
  make 
  sure 
  that 
  I 
  was 
  keeping 
  my 
  

   eye 
  on 
  the 
  same 
  one, 
  as 
  their 
  movements 
  were 
  very 
  quick, 
  

   and 
  often 
  two 
  or 
  three 
  would 
  take 
  a 
  short 
  flight 
  of 
  a 
  foot 
  or 
  

   two 
  from 
  the 
  nest 
  at 
  the 
  same 
  time. 
  The 
  parasites 
  were 
  

   evidently 
  in 
  fear 
  of 
  their 
  hosts, 
  constantly 
  shifting 
  their 
  

   position, 
  by 
  sideward 
  and 
  even 
  backward 
  running, 
  so 
  as 
  

   always 
  to 
  present 
  their 
  faces 
  to 
  the 
  wasps. 
  . 
  . 
  . 
  The 
  length 
  

   of 
  my 
  observation 
  was 
  chiefly 
  due 
  to 
  my 
  wish 
  to 
  detect 
  any 
  

   host 
  objecting 
  to 
  one 
  of 
  what 
  he 
  ought 
  to 
  regard 
  as 
  most 
  

   unwelcome 
  guests 
  ; 
  but 
  I 
  could 
  not 
  see 
  the 
  slightest 
  sign 
  of 
  

   notice 
  on 
  the 
  part 
  of 
  the 
  Synceca. 
  The 
  excitement 
  of 
  the 
  

   Epitelia 
  was 
  apparently 
  a 
  case 
  of 
  ' 
  the 
  wicked 
  fleeing 
  when 
  

   no 
  man 
  pursueth.' 
  " 
  

  

  Polybia, 
  Lepel. 
  

  

  Polybia 
  reject 
  a, 
  F. 
  

  

  Polybia 
  rejecta, 
  F. 
  Suppl. 
  Ent. 
  Syst. 
  p. 
  264 
  (1798) 
  (Cayenne). 
  

   Polybia 
  bicolor, 
  Sm. 
  Cat. 
  Hym. 
  Brit. 
  Mus. 
  vol. 
  v. 
  p. 
  131 
  (1857) 
  (Brazil). 
  

   Polybia 
  brunnea, 
  Curt. 
  Trans. 
  Linn. 
  Soc. 
  Lond. 
  vol. 
  xix. 
  pi. 
  i. 
  p. 
  256 
  

  

  (1844) 
  (Brazil). 
  

   Polybia 
  vicina, 
  Sauss. 
  Etud. 
  fam. 
  Vesp. 
  vol. 
  ii. 
  p. 
  189, 
  pi. 
  xxiv. 
  fig. 
  7 
  

  

  (1853) 
  (FJrazil). 
  

  

  P. 
  brunnea, 
  Curtis, 
  described 
  first 
  as 
  Myrapetra 
  brunnea, 
  

   was 
  one 
  of 
  the 
  species 
  which 
  Saussttre 
  had 
  not 
  seen 
  when 
  

   engaged 
  on 
  his 
  'Etudes 
  sur 
  les 
  Vespides.' 
  

  

  Polybia 
  sylveirce, 
  Sauss. 
  

  

  Polybia 
  sylveirce, 
  Sauss. 
  Et. 
  fam. 
  Vesp. 
  vol. 
  ii. 
  p. 
  171, 
  pi. 
  vi. 
  fig. 
  2 
  

  

  (1853) 
  (Brazil). 
  

   Polybia 
  enxuy, 
  Smith, 
  Trans. 
  Ent. 
  Soc. 
  Lond. 
  (3) 
  i. 
  6, 
  p. 
  511 
  (1863). 
  

  

  