﻿516 
  BRITISH 
  LEPIDOPTERA. 
  

  

  them 
  with 
  him 
  and 
  reared 
  them. 
  The 
  examples 
  kindly 
  committed 
  to 
  

   me 
  certainly 
  approach 
  the 
  two 
  previously-described 
  species 
  (tesseradac- 
  

   tyla 
  and 
  calodactyla), 
  especially 
  the 
  latter, 
  though 
  I 
  am 
  in 
  a 
  position 
  to 
  

   bring 
  forward 
  special 
  constant 
  characters. 
  The 
  size 
  is 
  that 
  of 
  calo- 
  

   dactyla. 
  Head 
  and 
  thorax 
  are 
  brown 
  ; 
  the 
  former 
  bears 
  two 
  fine 
  white 
  

   longitudinal 
  lines 
  above 
  the 
  eyes. 
  The 
  antennas 
  are 
  white, 
  ringed 
  with 
  

   brown. 
  The 
  abdomen 
  is 
  yellow-grey 
  ; 
  here 
  also 
  are 
  exhibited 
  white, 
  

   but 
  easily 
  discomposed, 
  longitudinal 
  lines. 
  The 
  legs 
  are 
  grey, 
  their 
  

   spurs 
  whitish. 
  The 
  forewings 
  are 
  beautiful 
  nut-brown, 
  rayed 
  with 
  

   paler 
  and 
  darker 
  longitudinally, 
  something 
  like 
  fossilized 
  wood. 
  On 
  

   the 
  disc 
  at 
  two-thirds, 
  in 
  front 
  of 
  the 
  usual 
  fringed 
  fissure, 
  lies 
  a 
  liver- 
  

   coloured 
  crescent 
  ; 
  in 
  front 
  of 
  this, 
  on 
  the 
  main 
  nervure, 
  one 
  notices 
  

   two 
  distinct 
  dark 
  dots, 
  and 
  above 
  it, 
  towards 
  the 
  costa 
  of 
  the 
  upper 
  

   lobe, 
  the 
  ground 
  colour 
  is 
  again 
  nut-brown. 
  The 
  costa 
  is 
  very 
  finely 
  

   white-edged, 
  without 
  dots. 
  The 
  fringes 
  of 
  the 
  hindmargin 
  are 
  also 
  

   white, 
  but, 
  on 
  the 
  inner 
  margin, 
  they 
  become 
  grey. 
  One 
  does 
  not 
  here 
  

   notice 
  any 
  black 
  hair-tufts. 
  The 
  thrice-divided 
  hindwings 
  are 
  brown, 
  

   their 
  fringes 
  duller, 
  likewise 
  without 
  the 
  distinction 
  of 
  scale-tufts. 
  

   All 
  is 
  nut-brown 
  beneath, 
  though 
  all 
  the 
  margins 
  are 
  edged 
  with 
  

   whitish, 
  the 
  fringes 
  as 
  above. 
  We 
  may 
  now 
  look 
  forward 
  to 
  the 
  

   approaching 
  illustration 
  in 
  the 
  above-mentioned 
  friend's 
  valuable 
  

   Neuere 
  Beytrdge 
  zur 
  Schmetterlingskunde 
  (Augsburg, 
  at 
  the 
  author's, 
  and 
  

   at 
  the 
  bookshop 
  of 
  Joseph 
  Wolff) 
  (Treitschke) 
  . 
  

  

  Imago. 
  — 
  20mm. 
  -24mm. 
  Forewings 
  brown, 
  darker 
  on 
  the 
  costa 
  ; 
  on 
  

   the 
  inner 
  margin, 
  around 
  the 
  fissure, 
  and 
  at 
  the 
  base 
  of 
  the 
  upper 
  lobe 
  

   pale 
  brown-yellow 
  ; 
  with 
  black 
  and 
  white 
  scales 
  arranged 
  in 
  longi- 
  

   tudinal 
  rows. 
  The 
  inner 
  marginal 
  spot 
  seldom 
  distinct, 
  the 
  discoidal 
  

   spot 
  nearly 
  always 
  present. 
  The 
  dots 
  before 
  the 
  fissure 
  are 
  small, 
  

   separated, 
  one 
  lying 
  directly 
  under 
  the 
  other, 
  and 
  separated 
  from 
  the 
  

   fissure 
  by 
  a 
  pale, 
  yellow-brown, 
  crescent-shaped 
  space, 
  sometimes 
  

   dusted 
  with 
  white, 
  which 
  is 
  continued 
  into 
  the 
  pale 
  spot 
  at 
  the 
  base 
  of 
  

   the 
  upper 
  lobe, 
  by 
  which 
  feature 
  S. 
  graphodactyla 
  is 
  easily 
  distinguished 
  

   from 
  all 
  the 
  other 
  species 
  of 
  the 
  genus 
  ; 
  the 
  fissural 
  spots 
  are 
  not 
  rarely 
  

   continued 
  in 
  more 
  or 
  less 
  lengthened 
  black 
  streaks. 
  In 
  the 
  upper 
  lobe 
  

   a 
  deep 
  black 
  longitudinal 
  dash 
  usually 
  lies, 
  which 
  is 
  cut 
  by 
  a 
  fine 
  

   white 
  oblique 
  line 
  extending 
  into 
  the 
  fringes 
  of 
  the 
  upper 
  lobe. 
  This 
  

   line 
  is 
  only 
  continued 
  extremely 
  rarely 
  into 
  the 
  lower 
  lobe. 
  Two 
  black 
  

   longitudinal 
  lines 
  are 
  generally 
  present 
  in 
  the 
  lower 
  lobe 
  ; 
  all 
  these 
  

   markings 
  are, 
  however, 
  very 
  variable, 
  and 
  often 
  only 
  indicated. 
  The 
  

   costa 
  exhibits, 
  above 
  the 
  fissural 
  spots, 
  an 
  indistinctly 
  outlined, 
  almost 
  

   triangular, 
  shade, 
  which 
  reminds 
  one 
  strongly 
  of 
  the 
  costal 
  triangle 
  of 
  

   the 
  genera 
  Platyptilia 
  and 
  Amblyptilia. 
  The 
  costal 
  fringes 
  are 
  more 
  

   or 
  less 
  distinctly 
  white 
  above 
  the 
  light 
  space 
  at 
  the 
  base 
  of 
  the 
  upper 
  

   lobe, 
  and 
  from 
  the 
  junction 
  of 
  the 
  pale 
  oblique 
  line 
  of 
  the 
  upper 
  lobe 
  

   up 
  to 
  the 
  apex 
  ; 
  otherwise 
  dark 
  brown. 
  The 
  outer 
  marginal 
  fringes 
  of 
  

   the 
  upper 
  lobe 
  are 
  white, 
  towards 
  the 
  inner 
  margin 
  brownish, 
  at 
  the 
  

   apex 
  of 
  the 
  lower 
  lobe 
  rather 
  extensively 
  pure 
  white, 
  then 
  towards 
  

   the 
  anal 
  angle 
  dark 
  brown, 
  furnished 
  on 
  both 
  lobes 
  with 
  an 
  

   uninterrupted 
  dark 
  brown 
  basal 
  line, 
  a 
  second 
  chief 
  distinction 
  of 
  S. 
  

   graphodactyla. 
  Hindwings 
  dark 
  brown-grey, 
  with 
  yellowish-grey 
  fringes, 
  

   which 
  show, 
  at 
  the 
  apices 
  of 
  the 
  1st 
  and 
  2nd 
  plumules, 
  an 
  indistinct 
  

   dark 
  dividing 
  line. 
  Underside 
  dark 
  brown-grey, 
  the 
  apices 
  of 
  the 
  lobes, 
  

   as 
  well 
  as 
  those 
  of 
  the 
  1st 
  and 
  2nd 
  plumules, 
  dusted 
  with 
  yellowish 
  ; 
  

  

  