﻿436 
  BRITISH 
  LEPIDOPTERA. 
  

  

  of 
  the 
  lobes. 
  Size 
  less 
  than 
  P. 
  tetradactylus. 
  Head 
  orange-brown, 
  

   with 
  a 
  white 
  line 
  above 
  the 
  eye, 
  which 
  runs 
  into 
  the 
  red-brown 
  basal 
  

   joint 
  of 
  the 
  white 
  and 
  black 
  ringed 
  antennae. 
  Palpi 
  longer 
  than 
  the 
  

   head, 
  somewhat 
  curved 
  upwards, 
  then 
  porrected 
  ; 
  the 
  thin 
  pointed 
  

   terminal 
  joint 
  lies 
  generally 
  on 
  the 
  elongated 
  hair- 
  scales 
  of 
  the 
  second 
  

   joint 
  ; 
  they 
  are 
  yellow-brown 
  with 
  white 
  longitudinal 
  lines, 
  as 
  in 
  P. 
  

   tristis. 
  Dorsal 
  shield 
  and 
  abdomen 
  yellow-brown. 
  Across 
  the 
  shield 
  

   runs 
  a 
  transverse 
  whitish-yellow 
  line 
  to 
  the 
  inner 
  margins 
  of 
  the 
  fore- 
  

   wings. 
  On 
  the 
  hind 
  margin 
  of 
  the 
  thorax 
  are 
  four 
  longitudinal 
  

   similarly- 
  coloured 
  lines, 
  which 
  are 
  continued 
  on 
  the 
  commencement 
  of 
  

   the 
  abdomen 
  ; 
  each 
  segment 
  of 
  the 
  abdomen 
  has 
  four, 
  more 
  or 
  less 
  

   distinct, 
  white, 
  longitudinal 
  lines, 
  which 
  become 
  thickened 
  and 
  divergent 
  

   on 
  the 
  hind-margin. 
  In 
  the 
  most 
  distinct 
  examples, 
  usually 
  females, 
  the 
  

   venter 
  has 
  three 
  snow-white 
  longitudinal 
  lines 
  thickened 
  before 
  the 
  

   incisions, 
  and 
  between 
  these 
  a 
  white 
  spot 
  in 
  each 
  ring. 
  Legs 
  with 
  

   white 
  lines 
  on 
  the 
  femora 
  and 
  tibiae 
  on 
  the 
  side 
  turned 
  to 
  the 
  body, 
  on 
  

   the 
  outer 
  side 
  with 
  two 
  reddish-brown 
  longitudinal 
  lines 
  ; 
  the 
  area 
  at 
  

   the 
  base 
  of 
  the 
  spurs 
  and 
  the 
  apices 
  of 
  these 
  reddish-brown; 
  the 
  tarsal 
  

   joints 
  snow-white 
  with 
  broad 
  yellow-brown 
  apices 
  (the 
  thickened 
  

   portions 
  at 
  the 
  spurs 
  are 
  stronger 
  and 
  the 
  brown 
  colour 
  much 
  brighter 
  

   than 
  in 
  P. 
  tristis). 
  JForewings 
  bright, 
  reddish, 
  cinnamon-brown, 
  

   dotted 
  with 
  white 
  on 
  the 
  dark 
  costa, 
  on 
  the 
  inner 
  margin 
  near 
  the 
  

   base, 
  and 
  also 
  on 
  the 
  disc 
  before 
  the 
  fissure, 
  with 
  yellowish 
  and 
  whitish 
  

   scaling. 
  The 
  upper 
  lobe 
  is 
  the 
  darker, 
  but 
  lighter 
  at 
  the 
  apex. 
  Two 
  

   whitish 
  transverse 
  lines, 
  more 
  oblique 
  and 
  more 
  sharply 
  margined 
  than 
  

   in 
  P. 
  tristis, 
  run 
  over 
  both 
  lobes. 
  The 
  fringes, 
  from 
  the 
  second 
  trans- 
  

   verse 
  line 
  to 
  the 
  apex, 
  on 
  the 
  costa 
  of 
  the 
  upper 
  lobe, 
  are 
  yellowish- 
  

   white 
  ; 
  on 
  the 
  lower 
  lobe 
  the 
  whitish 
  base 
  of 
  the 
  fringes, 
  between 
  the 
  

   apex 
  and 
  the 
  second 
  transverse 
  line, 
  forms 
  a 
  yellowish-white 
  curved 
  

   line 
  as 
  the 
  boundary 
  of 
  the 
  ground-colour. 
  The 
  fringes 
  of 
  the 
  hind- 
  

   margins 
  brow 
  T 
  n-grey, 
  especially 
  dark 
  in 
  the 
  space 
  between 
  the 
  two 
  

   transverse 
  lines 
  on 
  the 
  lower 
  lobe, 
  lighter 
  brownish 
  towards 
  the 
  base. 
  

   Here 
  and 
  there 
  are 
  scattered 
  black 
  scales 
  in 
  the 
  fringes 
  of 
  the 
  inner 
  

   margin. 
  Hindwings 
  grey-brown 
  with 
  grey 
  fringes. 
  The 
  third 
  plumule 
  

   light 
  reddish-brown, 
  with 
  a 
  set 
  of 
  white 
  scales 
  on 
  the 
  hind-margin; 
  the 
  

   hind-margin 
  has 
  them 
  longer, 
  and 
  more 
  numerous, 
  than 
  the 
  costa; 
  this 
  

   set 
  does 
  not, 
  however, 
  reach 
  the 
  whitish 
  apex, 
  where 
  two 
  black 
  scales 
  lie.* 
  

   Underside 
  darker 
  cinnamon-brown 
  ; 
  the 
  white 
  of 
  the 
  transverse 
  lines 
  

   and 
  fringes 
  more 
  distinct 
  than 
  on 
  the 
  upperside. 
  The 
  forewings 
  on 
  

   the 
  costa 
  with 
  scattered 
  white 
  scaling 
  ; 
  the 
  first 
  transverse 
  line 
  is 
  

   absent 
  on 
  the 
  lower 
  lobe. 
  The 
  first 
  and 
  third 
  plumules 
  paler 
  than 
  the 
  

   second, 
  and 
  with 
  a 
  large 
  whitish 
  spot 
  before 
  the 
  apex 
  ; 
  on 
  the 
  third 
  

   plumule 
  one 
  sees 
  the 
  black 
  scales 
  distinctly 
  only 
  on 
  the 
  hind 
  margin. 
  

   This 
  species 
  lives 
  in 
  many 
  countries 
  and 
  is 
  abundant 
  ; 
  but 
  I 
  here 
  only 
  

   mention 
  the 
  following 
  with 
  certainty 
  : 
  Sweden 
  (Zetterstedt) 
  ; 
  Mecklen- 
  

   burg-Strelitz 
  (from 
  examples 
  from 
  Messing); 
  in 
  the 
  Mark 
  of 
  Branden- 
  

   burg 
  (round 
  Berlin 
  and 
  Frankfort-on-Oder) 
  ; 
  Silesia, 
  in 
  the 
  plain 
  and 
  

   in 
  the 
  mountains 
  (round 
  Glogau 
  it 
  is 
  very 
  common, 
  rarer 
  round 
  

   Reinerz) 
  ; 
  Province 
  of 
  Posen 
  (according 
  to 
  von 
  Low) 
  ; 
  Bohemia, 
  

  

  * 
  This 
  paragraph 
  is 
  queried 
  in 
  Zeller's 
  copy 
  of 
  the 
  Isis 
  in 
  Nat. 
  Hist. 
  Mus. 
  

   library 
  in 
  his 
  own 
  handwriting. 
  The 
  description, 
  however, 
  is 
  quite 
  accurate, 
  

   except 
  that 
  the 
  whitish 
  apex 
  appears 
  also 
  often 
  to 
  carry 
  the 
  white 
  scales. 
  The 
  

   black 
  scales 
  at 
  the 
  apex 
  are 
  very 
  distinct 
  in 
  fine 
  specimens. 
  

  

  