﻿366 
  

  

  BKITISH 
  LEPIDOPTERA. 
  

  

  margin 
  of 
  the 
  lobe. 
  Described 
  from 
  a 
  single 
  g 
  . 
  Head 
  and 
  thorax 
  reddish-grey; 
  

   the 
  antennae, 
  at 
  the 
  basal 
  half, 
  white, 
  ringed 
  sharply 
  with 
  brown, 
  then 
  unicolorous 
  

   reddish-grey 
  ; 
  on 
  the 
  upper 
  ocellar 
  edge 
  is 
  a 
  white 
  line, 
  which 
  expands 
  and 
  con- 
  

   tinues 
  to 
  the 
  end 
  of 
  the 
  frontal 
  protuberance; 
  the 
  palpi 
  deep 
  rusty-brown, 
  above, 
  

   and 
  narrowly 
  white, 
  below. 
  The 
  abdomen 
  light 
  ochreous-yellow 
  ; 
  the 
  first 
  two 
  

   segments 
  above 
  white, 
  owing 
  to 
  the 
  two 
  wide 
  longitudinal 
  stripes 
  almost 
  uniting 
  ; 
  the 
  

   remaining 
  segments 
  have, 
  in 
  the 
  centre, 
  a 
  broad, 
  and 
  on 
  either 
  side 
  a 
  very 
  narrow, 
  

   yellowish-white, 
  nearly 
  obsolete, 
  longitudinal 
  line; 
  at 
  the 
  posterior 
  edge 
  of 
  the 
  five 
  

   hindmost 
  segments, 
  the 
  central 
  line 
  has, 
  on 
  either 
  side, 
  a 
  black 
  dot 
  ; 
  the 
  venter 
  is 
  

   marked 
  similarly, 
  only 
  the 
  central 
  line 
  is 
  whiter, 
  and 
  the 
  lateral 
  lines 
  on 
  either 
  side 
  

   of 
  the 
  abdomen 
  interrupted. 
  The 
  anal 
  flap 
  yellowish-white. 
  The 
  legs 
  dark 
  

   ochre-yellow, 
  almost 
  rust-coloured, 
  the 
  hind 
  femur 
  and 
  the 
  first 
  two 
  tibial 
  joints 
  

   externally 
  light 
  ochre-yellow 
  ; 
  the 
  spurs 
  smaller 
  and 
  more 
  delicate 
  than 
  in 
  fuscus, 
  

   brownish, 
  but 
  white 
  on 
  sides. 
  The 
  forewings 
  almost 
  5J'" 
  long, 
  reddish-ochreous 
  

   in 
  colour 
  ; 
  towards 
  the 
  costa 
  gradually 
  becoming 
  darker, 
  striated 
  weakly 
  with 
  white 
  

   and 
  brown 
  scales, 
  the 
  brown 
  costal 
  line 
  extending 
  from 
  the 
  base 
  to 
  the 
  beginning 
  

   of 
  the 
  upper 
  lobe 
  ; 
  the 
  brown 
  discal 
  spot 
  is 
  entirely 
  absent 
  ; 
  just 
  before 
  the 
  cleft 
  is 
  

   a 
  small 
  black-brown 
  dot, 
  not 
  sharply 
  defined, 
  whilst, 
  considerably 
  above 
  it, 
  but 
  

   somewhat 
  outside, 
  is 
  another, 
  still 
  less 
  distinct, 
  of 
  similar 
  colour. 
  The 
  costa, 
  from 
  

   the 
  end 
  of 
  its 
  first 
  third 
  to 
  the 
  commencement 
  of 
  the 
  last 
  fourth 
  of 
  the 
  upper 
  lobe, 
  

   is 
  edged 
  by 
  a 
  fine 
  whitish 
  line, 
  which 
  has 
  its 
  greatest 
  width 
  at 
  the 
  upper 
  lobe. 
  

   The 
  lobes 
  are 
  more 
  sharply 
  pointed 
  than 
  in 
  fuscus, 
  with 
  a 
  very 
  blunt 
  inner 
  angle, 
  

   and 
  only 
  marked 
  in 
  the 
  centre 
  with 
  a 
  faint, 
  fine, 
  whitish, 
  longitudinal 
  shade. 
  

   Fringes 
  reddish-grey 
  at 
  the 
  outer 
  edges 
  of 
  the 
  lobes, 
  with 
  whitish 
  basal 
  line, 
  almost 
  

   without 
  any 
  indication 
  of 
  the 
  spots 
  which 
  are 
  found 
  in 
  fuscus; 
  a 
  careful 
  examina- 
  

   tion 
  shows 
  that, 
  at 
  these 
  positions, 
  the 
  fringes 
  are 
  of 
  the 
  same 
  tint 
  as 
  the 
  ground 
  

   colour 
  of 
  the 
  wing. 
  Hindwings 
  of 
  the 
  colour 
  of 
  the 
  forewings. 
  The 
  fringes 
  greyer, 
  

   with 
  fine 
  pale 
  reddish 
  basal 
  line 
  ; 
  the 
  1st 
  and 
  2nd 
  plumules 
  more 
  pointed 
  than 
  in 
  

   fuscus, 
  and 
  the 
  2nd 
  is 
  almost 
  without 
  an 
  inner 
  angle. 
  The 
  underside 
  is 
  reddish- 
  

   brown 
  ; 
  the 
  costal 
  edge 
  of 
  the 
  front 
  wings, 
  from 
  the 
  base 
  up 
  to 
  half 
  of 
  the 
  upper 
  

   lobe, 
  with 
  a 
  sharp 
  yellowish 
  line 
  ; 
  the 
  apical 
  half 
  of 
  the 
  1st 
  plumule, 
  and 
  the 
  entire 
  

   3rd 
  plumule, 
  are 
  dusted 
  with 
  pale 
  yellow. 
  Habitat 
  near 
  Brussa, 
  in 
  Asia 
  Minor. 
  

   Flies 
  in 
  July. 
  Taken 
  by 
  Mann 
  (Zeller). 
  

  

  Zeller 
  describes 
  this 
  as 
  a 
  distinct 
  species, 
  and 
  Rebel 
  (Cat., 
  3rd 
  ed., 
  

   p. 
  77) 
  also 
  treats 
  it 
  as 
  such. 
  Staudinger, 
  however, 
  says 
  (Hor. 
  Soc. 
  

   Ent. 
  Ross., 
  xv., 
  p. 
  428) 
  that 
  he 
  caught 
  " 
  two 
  examples 
  on 
  June 
  24th, 
  

   at 
  Amasia, 
  and 
  on 
  July 
  13th, 
  at 
  Ak 
  Dagh, 
  which 
  appear 
  to 
  belong 
  to 
  

   Zeller' 
  s 
  insect, 
  and 
  which 
  may 
  be 
  only 
  a 
  southern 
  form 
  of 
  pterodaetyla, 
  

   Linn, 
  {fuscus, 
  Eetz.). 
  One 
  example 
  has 
  only 
  one 
  black 
  spot 
  at 
  the 
  

   end 
  of 
  the 
  cleft, 
  the 
  second 
  has 
  none 
  at 
  all. 
  According 
  to 
  Zeller, 
  there 
  

   should 
  be 
  two 
  small 
  black 
  spots, 
  widely 
  separated. 
  These 
  vary, 
  how- 
  

   ever, 
  and 
  others 
  also, 
  as 
  shown 
  by 
  an 
  examination 
  of 
  ten 
  specimens 
  of 
  

   mannii 
  from 
  the 
  Balkans, 
  Greece, 
  Brussa, 
  south 
  Caucasus, 
  aud 
  north 
  

   Persia. 
  Zeller 
  described 
  the 
  species 
  from 
  one 
  male 
  example 
  only, 
  

   taken 
  at 
  Brussa, 
  where 
  Mann 
  captured 
  some 
  in 
  June, 
  in 
  the 
  mountain 
  

   meadows. 
  We 
  have 
  seen 
  none 
  of 
  Mann's 
  or 
  Zeller's 
  original 
  examples. 
  

  

  Egglaying.— 
  The 
  eggs 
  of 
  this 
  species, 
  appear 
  to 
  be 
  laid 
  almost 
  

   without 
  exception 
  on 
  the 
  underside 
  of 
  the 
  leaves 
  of 
  the 
  foodplant, 
  with 
  

   the 
  colour 
  of 
  which 
  they 
  harmonise 
  very 
  strikingly. 
  Eggs 
  of 
  Stenop- 
  

   tilia 
  pterodaetyla, 
  laid 
  on 
  June 
  23rd, 
  1904, 
  on 
  the 
  underside 
  of 
  the 
  

   leaves 
  of 
  Veronica 
  chamaedrys, 
  are 
  of 
  a 
  yellowish-green 
  tint, 
  not 
  quite 
  

   that 
  of 
  the 
  leaf 
  (Chapman). 
  

  

  Ovum. 
  — 
  The 
  form 
  of 
  the 
  egg 
  is 
  very 
  similar 
  to 
  that 
  of 
  the 
  Agdistids, 
  

   more 
  so 
  than 
  that 
  of 
  any 
  other 
  plume 
  examined. 
  The 
  micropylar 
  

   end 
  is 
  very 
  flattened, 
  but 
  is 
  not 
  so 
  squared 
  at 
  the 
  angles 
  as 
  is 
  the 
  

   Agdistid 
  egg, 
  nor 
  is 
  there 
  any 
  special 
  sculpture 
  of 
  its 
  margin, 
  which 
  is 
  

   rounded 
  and 
  not 
  definitely 
  marked 
  off, 
  as 
  the 
  beading 
  marks 
  off 
  that 
  of 
  

   Adactylus. 
  The 
  length 
  of 
  the 
  egg 
  is 
  (M9mm. 
  Seen 
  from 
  above, 
  the 
  

   micropylar 
  end 
  is 
  a 
  transverse 
  line, 
  0-1 
  6mm. 
  long, 
  the 
  egg 
  widens 
  out 
  

  

  