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  curving 
  of 
  the 
  scales." 
  It 
  is 
  not 
  impossible 
  that 
  this 
  might 
  occur 
  

   when 
  the 
  wings 
  were 
  drying 
  under 
  certain 
  conditions 
  of 
  atmosphere, 
  

   or 
  it 
  might 
  perhaps 
  be 
  induced 
  in 
  the 
  pupa 
  prior 
  to 
  the 
  emergence 
  

   of 
  the 
  perfect 
  insect. 
  Whether 
  it 
  can 
  be 
  artificially 
  produced 
  I 
  am 
  

   unable 
  to 
  say. 
  It 
  would 
  seem 
  that 
  in 
  certain 
  seasons 
  the 
  dark- 
  

   scaled 
  forms 
  are 
  less 
  infrequent 
  than 
  in 
  other 
  years." 
  

  

  It 
  was 
  remarked 
  that 
  when 
  the 
  "clouded" 
  example 
  was 
  held 
  side- 
  

   ways 
  the 
  scales 
  appeared 
  normal 
  in 
  colour, 
  lending 
  credence 
  to 
  the 
  

   suggestion 
  that 
  they 
  had 
  somehow 
  become 
  curled. 
  

  

  The 
  President 
  exhibited 
  various 
  species 
  and 
  forms 
  of 
  the 
  Iwlenus 
  

   group 
  of 
  the 
  genus 
  Papilio. 
  Moore 
  has 
  placed 
  these 
  in 
  the 
  sub- 
  

   genus 
  Chariis. 
  

  

  In 
  this 
  group 
  " 
  tails 
  " 
  are 
  almost 
  always 
  developed 
  in 
  the 
  hind- 
  

   wings, 
  and 
  the 
  sexes 
  are 
  similarly 
  marked. 
  The 
  exhibit 
  included 
  

   P. 
  c/iaon 
  from 
  N. 
  India, 
  F. 
  helenus 
  from 
  India, 
  P. 
  iswara 
  from 
  

   Malacca, 
  and 
  its 
  race 
  var. 
  araspes 
  from 
  Borneo, 
  P. 
  fiiacas 
  (severus) 
  

   from 
  the 
  Moluccas, 
  with 
  the 
  race 
  var. 
  prexaspes 
  from 
  Malacca, 
  var. 
  

   beccarii 
  from 
  Dutch 
  New 
  Guinea, 
  var. 
  hvlicatus 
  from 
  British 
  New 
  

   Guinea, 
  and 
  var. 
  capaneiis 
  from 
  Australia, 
  and 
  P. 
  olbinus 
  from 
  

   Dutch 
  New 
  Guinea. 
  

  

  A 
  short 
  discussion 
  took 
  place 
  on 
  the 
  "Introduction 
  of 
  non- 
  

   indigenous 
  species 
  " 
  into 
  the 
  country. 
  It 
  was 
  generally 
  considered 
  

   that 
  all 
  introductions 
  of 
  this 
  kind 
  should 
  be 
  recorded 
  in 
  detail, 
  so 
  

   that 
  full 
  observations 
  could 
  be 
  made 
  of 
  the 
  experiments 
  and 
  their 
  

   results. 
  

  

  FEBRUARY 
  28th, 
  1918. 
  

  

  Exhibition 
  of 
  Lantern 
  Slides. 
  

  

  The 
  President 
  exhibited 
  slides 
  showing 
  (1) 
  the 
  development 
  of 
  

   the 
  wings 
  in 
  Pieris 
  brassicae 
  ; 
  (2) 
  various 
  forms 
  of 
  antennae 
  in 
  

   Coleoptera 
  and 
  Lepidoptera 
  ; 
  (3) 
  tripectinate 
  antenna 
  of 
  Abantiades 
  

   aryentetis, 
  an 
  Australian 
  Hepialid 
  ; 
  (4) 
  the 
  hyper-metamorphosis 
  of 
  

   Epicauta 
  (Col.) 
  ; 
  (5) 
  the 
  antenna 
  of 
  Talarocera7ii<jripentiis, 
  a 
  Tachi- 
  

   nid 
  (Dip.) 
  ; 
  (6) 
  wings 
  and 
  gizzard 
  of 
  the 
  cockroach, 
  Panchlora 
  

   orientalis 
  ; 
  (7) 
  a 
  pupa 
  of 
  Micwpteryx 
  semipurpurella 
  showing 
  the 
  

   pupal 
  jaws 
  ; 
  (8) 
  various 
  androconial 
  scales 
  of 
  Lepidoptera 
  ; 
  (9) 
  the 
  

   neuration 
  of 
  Castnia 
  with 
  that 
  of 
  other 
  Lepidopterous 
  groups 
  for 
  

   comparison. 
  

  

  * 
  E. 
  A. 
  Cockayne, 
  " 
  Trans. 
  Ent. 
  Soc. 
  Lond.," 
  1917, 
  p. 
  165. 
  

  

  