﻿8 
  

  

  2. 
  Silvery-grey, 
  no 
  markings 
  except 
  a 
  slender 
  black 
  submarginal 
  

   line 
  and 
  the 
  usual 
  dusting. 
  

  

  3. 
  Stripes 
  massed 
  in 
  the 
  inner 
  half 
  of 
  the 
  wing, 
  outer 
  half 
  

   silvery-white, 
  

  

  4. 
  Stripes 
  reduced 
  to 
  mere 
  threads, 
  except 
  the 
  4th, 
  which 
  is 
  

   broad 
  and 
  black, 
  and 
  forms 
  a 
  striking 
  submarginal 
  band 
  from 
  

   contrast. 
  

  

  5. 
  The 
  base 
  clouded 
  black. 
  

  

  6. 
  The 
  2nd 
  and 
  3rd 
  stripes 
  joined. 
  

  

  7. 
  The 
  1st 
  and 
  4th 
  stripes 
  nearly 
  obliterated. 
  

   Gynandromorphs.^ 
  — 
  1. 
  R. 
  hindwing 
  smooth 
  smoky-black, 
  the 
  

  

  rest 
  normal. 
  

  

  2. 
  Apparently 
  male, 
  wings 
  narrow 
  like 
  those 
  of 
  the 
  female 
  and 
  

   tinged 
  with 
  the 
  same 
  blacker 
  markings. 
  

  

  3. 
  R. 
  side 
  female 
  dark 
  and 
  small, 
  L. 
  side 
  male 
  typical 
  in 
  size, 
  

   colour 
  and 
  marking. 
  Antennae 
  intermediate, 
  both 
  with 
  short 
  

   pectinations. 
  

  

  In 
  the 
  short 
  time 
  at 
  my 
  disposal 
  during 
  the 
  past 
  fortnight, 
  I 
  have 
  

   gone 
  through 
  some 
  of 
  our 
  Society 
  Proceedings 
  and 
  Transactions 
  

   for 
  striking 
  aberrations 
  with 
  the 
  following 
  results. 
  

  

  Mr. 
  G, 
  Brooks 
  exhibited 
  (" 
  Proceed. 
  S. 
  Lond. 
  E. 
  and 
  N. 
  H. 
  S.," 
  

   1917, 
  p. 
  66). 
  (1) 
  Pale 
  forms 
  from 
  marshy 
  ground 
  in 
  Berkshire. 
  

   (2) 
  Deep 
  yellow 
  forms 
  from 
  the 
  Downs 
  near 
  Ashford. 
  (3) 
  Yellow 
  forms 
  

   from 
  the 
  coastal 
  area 
  near 
  Folkestone. 
  (4) 
  Dark 
  forms 
  fiom 
  the 
  

   Downs 
  above 
  Brighton. 
  (5) 
  Dark 
  forms 
  froui 
  the 
  heaths 
  near 
  

   Croydon, 
  near 
  Midhurst, 
  Sussex, 
  at 
  Christchurch, 
  Hants, 
  and 
  in 
  

   the 
  New 
  Forest. 
  

  

  Aberrations 
  have 
  been 
  exhibited 
  as 
  follows. 
  

  

  1. 
  Male 
  with 
  coloration 
  of 
  the 
  female. 
  

  

  2. 
  A 
  unicolorous 
  dark 
  fuscous 
  brown. 
  Presumably 
  a 
  male. 
  

  

  3. 
  A 
  specimen 
  with 
  six 
  wings, 
  4 
  on 
  one 
  side, 
  2 
  on 
  the 
  other. 
  

  

  (C. 
  P. 
  Pickett, 
  " 
  Proceed. 
  S. 
  L. 
  E. 
  and 
  N. 
  H. 
  S., 
  1906-7, 
  

  

  ' 
  p. 
  88.) 
  

  

  4. 
  A 
  female 
  with 
  the 
  marginal 
  dark 
  band 
  obsolete. 
  

  

  5. 
  A 
  female 
  with 
  the 
  male 
  coloration 
  and 
  marking. 
  

  

  6. 
  A 
  unicolorous 
  chocolate 
  form.' 
  Presumably 
  a 
  male. 
  

  

  7. 
  An 
  almost 
  entirely 
  black 
  form. 
  Again 
  presumably 
  a 
  male. 
  

  

  8. 
  A 
  female 
  with 
  the 
  two 
  inner 
  transverse 
  lines 
  on 
  the 
  hindwings 
  

  

  completely 
  missing. 
  

  

  Additional 
  Items. 
  

  

  In 
  going 
  through 
  the 
  series 
  in 
  the 
  British 
  Museum 
  Collection, 
  

   and 
  those 
  in 
  my 
  own 
  cabinet, 
  I 
  have 
  recorded 
  the 
  following 
  facts 
  

   which 
  are 
  not 
  expressed 
  by 
  previous 
  observers, 
  so 
  far 
  as 
  I 
  have 
  been 
  

   able 
  to 
  search. 
  

  

  In 
  the 
  Males, 
  the 
  ground 
  colour 
  is 
  never 
  white, 
  and 
  rarely 
  whitish 
  

   yellow 
  ; 
  the 
  yellow 
  of 
  the 
  hindwings 
  is, 
  at 
  times, 
  somewhat 
  deeper 
  

   in 
  tint 
  than 
  that 
  of 
  the 
  forewings; 
  lines 
  2 
  and 
  3 
  are 
  less 
  frequently 
  

  

  