﻿PBOCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  263 
  

  

  in 
  areas 
  far 
  removed 
  from 
  the 
  range 
  of 
  hector 
  where 
  romulus 
  is 
  abundant 
  

   such 
  rare 
  romulus 
  forms 
  as 
  are 
  found 
  will 
  be 
  nearly 
  always 
  heterozy- 
  

   gotes 
  and 
  only 
  very 
  rarely 
  pure 
  dominants. 
  

  

  The 
  above 
  reasoning 
  was 
  applied 
  to 
  the 
  more 
  complex 
  case 
  of 
  

   Papilio 
  dardanas, 
  in 
  Africa 
  and 
  was 
  subsequently 
  confirmed 
  by 
  breeding 
  

   experiments 
  in 
  many 
  parts 
  of 
  the 
  range 
  where 
  rare 
  female 
  forms 
  were 
  

   found 
  to 
  behave 
  as 
  heterozygotes 
  {Proc. 
  Ent. 
  Soc. 
  London, 
  1914, 
  pp. 
  

   LXVIII— 
  LXX). 
  

  

  The 
  proportion 
  of 
  the 
  stichius 
  form 
  to 
  the 
  true 
  polytes 
  females 
  does 
  

   not 
  differ 
  greatly 
  in 
  the 
  two 
  localities 
  ; 
  for 
  the 
  9 
  Baghownie 
  examples 
  on 
  

   the 
  iih 
  column 
  Sive 
  very 
  nearly 
  stichius 
  and, 
  unless 
  carefully 
  examined, 
  

   would 
  be 
  assigned 
  to 
  this 
  form. 
  It 
  will 
  be 
  interesting 
  to 
  study 
  in 
  a 
  

   similar 
  manner 
  the 
  development 
  of 
  the 
  chief 
  hind-wing 
  markings 
  of 
  

   aristolochicB 
  in 
  various 
  localities 
  and 
  determine 
  whether 
  there 
  is 
  any 
  

   correspondence 
  in 
  this 
  respect 
  between 
  it 
  and 
  mimetic 
  polytes. 
  That 
  

   this 
  is 
  not 
  unlikely 
  is 
  shewn 
  by 
  the 
  strong 
  development 
  of 
  this 
  marking 
  

   of 
  both 
  model 
  and 
  mimic 
  in 
  Ceylon, 
  where 
  the 
  stichius 
  form 
  is 
  excessively 
  

   rare 
  {Rep. 
  Proc. 
  ^rd 
  Ent. 
  Meeting, 
  Pusa, 
  1919, 
  p. 
  904). 
  

  

  Another 
  point 
  of 
  great 
  interest 
  brought 
  out 
  by 
  a 
  careful 
  comparison 
  

   of 
  the 
  polytes 
  females 
  from 
  both 
  localities 
  is 
  the 
  existence 
  of 
  a 
  small 
  

   proportion 
  of 
  individuals 
  with 
  the 
  hind- 
  wing 
  pattern 
  intermediate 
  

   between 
  that 
  of 
  polytes 
  and 
  romulus. 
  The 
  proportion 
  of 
  these 
  in 
  loca- 
  

   lities 
  where 
  romulus 
  is 
  commoner 
  would 
  be 
  well 
  worth 
  studying. 
  It 
  is 
  

   probable 
  that 
  such 
  individuals 
  are 
  heterozygotes 
  exhibiting 
  imperfect 
  

   dominance, 
  but 
  this 
  suggestion 
  can 
  only 
  be 
  tested 
  by 
  breeding. 
  

  

  The 
  further 
  investigation 
  of 
  this 
  interesting 
  example 
  of 
  female 
  

   mimicry 
  will, 
  I 
  think, 
  be 
  assisted 
  by 
  bringing 
  together 
  all 
  the 
  significant 
  

   references 
  to 
  polytes 
  and 
  its 
  models 
  in 
  the 
  publications 
  of 
  the 
  Bombay 
  

   Natural 
  History 
  Society. 
  I 
  owe 
  these 
  to 
  the 
  kind 
  help 
  of 
  Mr. 
  C. 
  M. 
  

   Inglis 
  and 
  Dr. 
  R. 
  Hanitsch. 
  In 
  the 
  critical 
  remarks 
  on 
  some 
  of 
  the 
  

   references 
  I 
  have 
  been 
  kindly 
  helped 
  by 
  Dr. 
  Karl 
  Jordan. 
  A 
  few 
  obser- 
  

   vations 
  from 
  other 
  publications 
  or 
  hitherto 
  unrecorded 
  have 
  been 
  added. 
  

  

  The 
  references 
  are 
  arranged 
  according 
  to 
  the 
  localities 
  starting 
  from 
  

   the 
  South 
  of 
  India, 
  proceeding 
  northward 
  and 
  then 
  eastward 
  into 
  Burma 
  

   and 
  China. 
  References 
  which 
  mention 
  only 
  volume 
  and 
  date 
  are 
  all 
  

   from 
  the 
  Journal 
  of 
  the 
  Bombay 
  Natural 
  History 
  Society. 
  

  

  The 
  following 
  early 
  reference 
  to 
  this 
  example 
  of 
  mimicry 
  occurs 
  

   in 
  a 
  paper 
  by 
  Colonel 
  Charles 
  Swinhoe 
  (Vol. 
  II, 
  1887, 
  p. 
  173) 
  :— 
  " 
  P. 
  

   pammon 
  (polytes) 
  the 
  female 
  of 
  which 
  mimics 
  two 
  species, 
  P. 
  diphilus 
  

   and 
  P. 
  hector, 
  and 
  in 
  the 
  Nicobars 
  the 
  female 
  of 
  the 
  variety 
  nicoharus 
  

   mimics 
  the 
  Nicobar 
  variety 
  of 
  P. 
  diphilus, 
  called 
  P. 
  (aristolochicB) 
  

   camorta." 
  P. 
  diphilus, 
  Gray 
  is 
  a 
  synonym 
  of 
  aristolochice, 
  F. 
  RotJbschild 
  

  

  s2 
  

  

  