﻿Ixvii 
  

  

  blue, 
  of 
  the 
  colour 
  of 
  the 
  (^. 
  None 
  of 
  them 
  show 
  the 
  grey 
  

   tint 
  sometimes 
  present 
  in 
  (6) 
  ; 
  underside 
  pale 
  cinnamon 
  

   brown, 
  often 
  paler 
  than 
  in 
  (2). 
  

  

  (6) 
  From 
  the 
  Kent 
  river 
  mosses. 
  

  

  (^. 
  As 
  in 
  (5), 
  but 
  in 
  some 
  cases 
  the 
  blue 
  of 
  the 
  upperside 
  of 
  

   the 
  wings 
  changes 
  to 
  grey 
  towards 
  the 
  margin 
  of 
  the 
  hind 
  or 
  of 
  

   botb 
  wings 
  — 
  a 
  variation 
  parallel 
  with 
  that 
  which 
  in 
  cnridon 
  

   culminates 
  in 
  ab. 
  fowleri. 
  Black 
  margin 
  rather 
  narrower. 
  

  

  ?. 
  Upperside. 
  In 
  all 
  my 
  (83) 
  specimens 
  blue 
  is 
  present 
  on 
  

   the 
  upperside. 
  It 
  is 
  always 
  most 
  extensive 
  on 
  h.-w. 
  It 
  is 
  

   generally, 
  not 
  always, 
  divided 
  by 
  black 
  nervures, 
  and 
  very 
  

   rarely 
  extends 
  to 
  costa 
  of 
  h.-w. 
  If 
  little 
  developed 
  it 
  is 
  often 
  

   limited 
  to 
  wedge-shaped 
  interneural 
  patches 
  internal 
  to 
  the 
  

   marginal 
  spots 
  of 
  h.-w., 
  a 
  condition 
  much 
  commoner 
  in 
  (5). 
  

   The 
  pure 
  shade 
  of 
  blue 
  is 
  commoner 
  in 
  $ 
  than 
  ^. 
  On 
  the 
  

   outer 
  side 
  of 
  the 
  disc 
  the 
  colour 
  is 
  often 
  grey 
  rather 
  than 
  

   blue, 
  and 
  may 
  be 
  almost 
  white. 
  

  

  In 
  30-40% 
  of 
  the 
  females 
  of 
  my 
  moss 
  forms 
  a 
  narrow 
  band 
  

   of 
  white, 
  interrupted 
  by 
  the 
  black 
  nervures, 
  precedes 
  the 
  black 
  

   marginal 
  band. 
  This 
  is 
  comparatively 
  rare 
  in 
  the 
  other 
  forms. 
  

   Underside 
  ^.s 
  in 
  (5). 
  

  

  The 
  var. 
  masseyi 
  is 
  thus 
  a 
  very 
  varying 
  form 
  in 
  the 
  shade 
  

   of 
  the 
  blue 
  colour 
  in 
  both 
  sexes, 
  in 
  the 
  degree 
  of 
  the 
  blueness 
  

   of 
  the 
  female, 
  in 
  the 
  occurrence 
  of 
  the 
  greyish 
  borders 
  of 
  the 
  

   uppersides 
  of 
  the 
  wings 
  of 
  the 
  S, 
  and 
  in 
  the 
  occurrence 
  of 
  a 
  

   white 
  submarginal 
  border 
  on 
  the 
  upperside 
  of 
  h.-w. 
  of 
  ?. 
  

   It 
  differs 
  from 
  other 
  British 
  forms 
  in 
  the 
  frequent 
  occurrence 
  

   of 
  a 
  purer, 
  less 
  purple, 
  shade 
  of 
  blue 
  on 
  the 
  upperside 
  of 
  both 
  

   sexes, 
  in 
  the 
  paleness 
  of 
  the 
  ground-colour 
  of 
  the 
  under- 
  

   side 
  in 
  both 
  sexes, 
  and 
  in 
  the 
  blacker 
  shade 
  of 
  the 
  ground- 
  

   colour 
  of 
  the 
  upperside 
  of 
  the 
  female. 
  It 
  attains 
  its 
  most 
  

   aberrant 
  and 
  splendid 
  characters 
  on 
  the 
  Westmoreland 
  mosses, 
  

   the 
  form 
  found 
  on 
  Holker 
  moss, 
  on 
  the 
  Leven 
  estuary, 
  being 
  in 
  

   some 
  respects 
  an 
  intermediate 
  or 
  penultimate 
  step 
  in 
  the 
  series. 
  

  

  In 
  some 
  of 
  its 
  features 
  masseyi 
  approaches 
  hypochiona, 
  

   Rambur, 
  from 
  the 
  Pyrenees 
  and 
  Spain. 
  

  

  Variation 
  in 
  Eumorpha 
  elpenor 
  probably 
  produced 
  

   BY 
  HEAT. 
  — 
  Mr. 
  W. 
  Kaye 
  exhibited 
  various 
  series 
  of 
  the 
  

   Sphingid 
  Eumorpha 
  elpenor 
  to 
  illustrate 
  the 
  probable 
  effect 
  

  

  