﻿302 
  

  

  BRITISH 
  LEPIDOPTEEA. 
  

  

  centibus 
  parum 
  nebulosis, 
  punctis 
  albis 
  in 
  laciniarum 
  margine 
  postico 
  

   obsoletis," 
  of 
  which 
  he 
  had 
  one 
  $ 
  from 
  Fischer 
  von 
  Rosier 
  stamm's 
  

   collection. 
  An 
  example 
  of 
  the 
  brown 
  -tinged 
  form, 
  just 
  noted, 
  is 
  evidently 
  

   figured 
  by 
  Herrich-Schaffer 
  (Sys. 
  Bearb., 
  pi. 
  i., 
  fig. 
  4), 
  and 
  this 
  we 
  would 
  

   call 
  ab. 
  dubia, 
  n. 
  ab. 
  The 
  dark 
  forms 
  of 
  this 
  race 
  we 
  call 
  freyi, 
  n. 
  

   ab. 
  This 
  is 
  probably 
  Zeller's 
  var. 
  e 
  (op. 
  cit.), 
  described 
  as 
  "major; 
  

   alis 
  anterioribus 
  paulo 
  latioribus, 
  obscuris 
  cano 
  subreticulatis 
  = 
  spilo- 
  

   dactyla, 
  Kaden, 
  in 
  litt" 
  The 
  most 
  extreme 
  form 
  of 
  this 
  race 
  in 
  the 
  

   opposite 
  (pale) 
  direction 
  is 
  labelled 
  " 
  cosmodactyla, 
  aberr., 
  Zurich." 
  This 
  

   specimen 
  has 
  the 
  whole 
  of 
  the 
  wings 
  of 
  an 
  ashy-grey 
  colour, 
  only 
  

   relieved 
  by 
  faintly- 
  darker 
  grey 
  longitudinal 
  shadings, 
  a 
  narrowly 
  

   fuscous-spotted 
  costa, 
  a 
  dark 
  fuscous-black 
  triangular 
  costal 
  blotch, 
  and 
  

   a 
  dark 
  irregular 
  band 
  crossing 
  the 
  lobes, 
  filling 
  up 
  the 
  anal 
  angle 
  of 
  

   the 
  lower 
  lobe. 
  Walsingham's 
  fig. 
  4 
  (Pter. 
  Cal. 
  Oreg., 
  pi. 
  ii) 
  might 
  

   nearly 
  be 
  drawn 
  from 
  this 
  specimen. 
  We 
  call 
  it 
  ab. 
  extrema, 
  n. 
  ab. 
  

   We 
  have 
  a 
  specimen 
  approaching 
  this, 
  bred 
  by 
  Studd, 
  from 
  a 
  larva 
  found 
  

   at 
  Oxton. 
  Of 
  this 
  variable 
  and 
  interesting 
  species, 
  therefore, 
  there 
  

   appear 
  to 
  be 
  only 
  three 
  previously 
  named 
  forms, 
  viz. 
  : 
  — 
  

  

  Ashy, 
  shaded 
  with 
  fuscous, 
  a 
  white 
  striga 
  parallel 
  with 
  hind 
  margin 
  = 
  var. 
  

   ulodactyla, 
  Zett. 
  

  

  Ashy-green, 
  clouded 
  with 
  white, 
  with 
  many 
  white 
  costal 
  spots, 
  and 
  obsolete 
  

   striga 
  at 
  hind-margin 
  =punctidactyla, 
  Haw. 
  

  

  Greenish-fuscous, 
  with 
  darker 
  costal 
  spot, 
  and 
  white 
  costal 
  points 
  — 
  cosmo- 
  

   dactyla, 
  Tr. 
  = 
  var. 
  (et 
  ab.) 
  stachydalis, 
  Frey. 
  

  

  a. 
  var. 
  stachydalis, 
  Frey, 
  "Mitt. 
  Schw. 
  Ent. 
  Gesell.," 
  iii., 
  p. 
  290 
  (1870) 
  ; 
  

   " 
  Stett. 
  Ent. 
  Ztg.," 
  1871, 
  p. 
  125 
  (1871) 
  ; 
  " 
  Lep. 
  der 
  Schweiz," 
  p. 
  429 
  (1880); 
  Sta., 
  

   "Ent. 
  Mo. 
  Mag.," 
  xviii., 
  p. 
  213 
  (1882); 
  Hofm., 
  " 
  Pter. 
  Deutsch.," 
  p. 
  65 
  (1895).— 
  

   From 
  the 
  seed-capsules 
  of 
  Aquilegia, 
  I 
  have 
  bred, 
  during 
  several 
  years, 
  about 
  100 
  

   examples 
  of 
  cosmodactyla, 
  among 
  which 
  appeared 
  a 
  single 
  specimen 
  which 
  was 
  

   coloured 
  exactly 
  the 
  same 
  as 
  those 
  regularly 
  produced 
  when 
  reared 
  on 
  Stachys. 
  I 
  

   propose 
  the 
  name 
  var. 
  stachydalis 
  for 
  this 
  striking 
  form 
  (Frey). 
  The 
  young 
  larva 
  

   of 
  the 
  var. 
  stachydalis, 
  7mm. 
  -8mm. 
  long, 
  is 
  brown-red, 
  with 
  two 
  white 
  lateral 
  

   lines 
  on 
  the 
  back 
  (subdorsal), 
  and 
  a 
  broken 
  white 
  line 
  above 
  the 
  spiracles 
  (supra- 
  

   spiracular) 
  and 
  whitish 
  lateral 
  flange. 
  Tubercles 
  white 
  on 
  the 
  meso- 
  and 
  meta- 
  

   thorax, 
  with 
  two 
  white 
  hairs 
  each, 
  on 
  the 
  dorsum 
  of 
  the 
  remaining 
  segments, 
  each 
  

   with 
  one 
  white 
  hair, 
  on 
  the 
  lateral 
  flange, 
  again, 
  each 
  with 
  two 
  divergent 
  hairs. 
  

   Besides 
  this, 
  the 
  whole 
  body 
  is 
  thickly 
  beset 
  with 
  small, 
  very 
  short, 
  black 
  bristles. 
  

   Head 
  shining 
  black, 
  or 
  also 
  yellow-brown 
  with 
  black 
  spots 
  ; 
  thoracic 
  shield 
  black- 
  

   brown, 
  divided 
  by 
  a 
  fine 
  pale 
  median 
  line, 
  anteriorly 
  whitish 
  margined, 
  beset 
  with 
  

   white 
  bristles. 
  Anal 
  flap 
  black-brown 
  with 
  white 
  bristles. 
  Spiracles 
  on 
  white 
  

   elevations. 
  Thoracic 
  feet 
  black, 
  terminal 
  joint 
  brown. 
  Ventral 
  and 
  anal 
  claspers 
  

   like 
  the 
  venter, 
  whitish-grey. 
  In 
  the 
  fullgrown 
  larva, 
  the 
  brown-red 
  colour 
  gradually 
  

   vanishes, 
  and 
  gives 
  place 
  to 
  green 
  ; 
  the 
  dorsal 
  stripe, 
  and 
  the 
  2nd 
  and 
  3rd 
  abdominal 
  

   segments 
  retain 
  the 
  brown-red 
  longest 
  ; 
  at 
  last, 
  the 
  red 
  colour 
  dies 
  away 
  here, 
  and 
  

   the 
  dorsal 
  stripe 
  becomes 
  dark 
  green 
  ; 
  the 
  thoracic 
  shield 
  and 
  anal 
  flap 
  become 
  

   green 
  as 
  well 
  ; 
  the 
  rest 
  of 
  the 
  markings 
  remain 
  unchanged. 
  Described 
  from 
  larvae 
  

   found 
  plentifully 
  at 
  the 
  end 
  of 
  July 
  and 
  beginning 
  of 
  August 
  on 
  the 
  flowers 
  of 
  

   Stachys 
  silvatica 
  and 
  Salvia 
  glutinosa 
  (Hofmann). 
  

  

  The 
  remarkable 
  statement 
  of 
  Frey 
  (supra), 
  involving 
  as 
  it 
  does 
  no 
  

   description 
  whatever, 
  either 
  of 
  the 
  normal 
  Aquilegia 
  form, 
  or 
  the 
  Stachys 
  

   form, 
  which 
  one 
  example 
  from 
  Aquilegia 
  resembled, 
  and 
  which 
  is 
  here 
  

   named 
  stachydalis, 
  gives 
  no 
  clue 
  as 
  to 
  what 
  stachydalis 
  is, 
  but, 
  the 
  year 
  

   following, 
  Frey 
  noted 
  (Stett. 
  Ent. 
  Ztg., 
  1871, 
  p. 
  121) 
  that 
  he 
  met 
  with 
  

   cosmodactyla, 
  Tr. 
  (punetidactyla) 
  at 
  Zurich, 
  in 
  June, 
  and 
  that 
  Boll, 
  at 
  

   Bremgarten, 
  had 
  called 
  his 
  attention 
  to 
  a 
  "plume 
  " 
  larva 
  feeding 
  on 
  the 
  

   flowers 
  of 
  Stachys 
  sylvatica, 
  which, 
  at 
  first, 
  he 
  was 
  inclined 
  to 
  consider 
  

   was 
  that 
  of 
  acanthodactyla, 
  Tr., 
  but 
  which 
  produced 
  cosmodactyla, 
  Tr., 
  of 
  

   strikingly 
  bright 
  olive-brown 
  hue, 
  18 
  exactly 
  similar 
  examples 
  being 
  

   reared 
  altogether, 
  and 
  which 
  he 
  considered, 
  could 
  be 
  nothing 
  

  

  