﻿VI 
  

  

  American 
  form 
  of 
  this 
  common 
  European 
  species, 
  but 
  whicli 
  

   was 
  now 
  quite 
  rare 
  in 
  collections, 
  and 
  the 
  British 
  Museum 
  

   was 
  much 
  indebted 
  to 
  Mr. 
  Winn 
  for 
  presenting 
  this 
  fine 
  

   specimen 
  through 
  Mr. 
  Lachlan 
  Gibb. 
  

  

  Occurrence 
  of 
  a 
  Californian 
  " 
  Plume," 
  Platyptilia 
  

   (Amblyptilia) 
  Pica, 
  Wlsm. 
  (var. 
  an 
  sp. 
  ?), 
  in 
  Scotland. 
  — 
  

   Mr. 
  DuRRANT 
  also 
  exhibited 
  a 
  Pterophorid 
  which 
  had 
  been 
  

   submitted 
  to. 
  him 
  by 
  Prof. 
  Poulton. 
  This 
  specimen 
  was 
  

   beaten 
  from 
  Juniper 
  at 
  Aviemore 
  (Inverness), 
  in 
  September 
  

   1918, 
  by 
  Mr. 
  P. 
  C. 
  Eeid, 
  when 
  searching 
  for 
  larvae 
  of 
  

   Eupithecia 
  helveticata. 
  Among 
  British 
  species 
  this 
  could 
  only 
  

   be 
  regarded 
  as 
  a 
  variety 
  of 
  Platyptilia 
  {Aniblyptilia) 
  puncti- 
  

   dactyla, 
  Hw. 
  (= 
  cosmodactyla, 
  Hb.) 
  with 
  black 
  markings 
  on 
  a 
  

   white 
  ground-colour— 
  thus 
  exactly 
  similar 
  to 
  Amhlyptilus 
  pica, 
  

   Wlsm. 
  (California), 
  and 
  also 
  a 
  $, 
  like 
  the 
  only 
  two 
  specimens 
  in 
  

   the 
  British 
  Museum 
  (Wlsm. 
  Coll.). 
  The 
  occurrence 
  of 
  a 
  single 
  

   specimen 
  in 
  .Scotland, 
  of 
  a 
  Califoinian 
  species 
  founded 
  on 
  

   three 
  specimens, 
  taken 
  in 
  1872, 
  and 
  not 
  since 
  met 
  with 
  in 
  

   America, 
  would 
  seem 
  to 
  indicate 
  that 
  pica, 
  Wlsm., 
  was 
  an 
  

   extreme 
  variety 
  of 
  punctidactyla, 
  Hw., 
  rather 
  than 
  a 
  distinct 
  

   species, 
  but 
  this 
  could 
  not 
  be 
  determined 
  with 
  certainty 
  until 
  

   we 
  were 
  acquainted 
  with 
  the 
  ^. 
  Mr. 
  Durrant 
  asked 
  Lord 
  

   Walsingham 
  to 
  examine 
  the 
  specimen 
  and 
  had 
  received 
  the 
  

   following 
  notes 
  : 
  — 
  

  

  "The 
  Pterophorid, 
  collected 
  at 
  Aviemore 
  by 
  Mr. 
  Reid, 
  is 
  

   precisely 
  similar 
  to 
  two 
  specimens 
  out 
  of 
  three 
  (I 
  gave 
  one 
  

   away) 
  collected 
  by 
  me 
  in 
  the 
  Redwood 
  forests 
  not 
  far 
  from 
  

   Crescent 
  City, 
  in 
  northern 
  Cahfomia, 
  in 
  June 
  1872. 
  I 
  named 
  

   the 
  species 
  Amblyptilus 
  pica 
  [Pterophoridae 
  of 
  CaUfornia 
  and 
  

   Oregon 
  21-3 
  Pf 
  . 
  2*1 
  (1880)] 
  from 
  its 
  black 
  and 
  white 
  markings 
  

   reminding 
  me 
  of 
  a 
  magpie. 
  Crescent 
  City 
  is 
  about 
  26° 
  south 
  of 
  

   the 
  Scotch 
  locality, 
  and, 
  having 
  regard 
  to 
  the 
  improbabiUty 
  

   of 
  a 
  distinct 
  Californian 
  species 
  occurring 
  in 
  Scotland, 
  it 
  has 
  

   been 
  suggested 
  that 
  this 
  is 
  a 
  mere 
  variety 
  of 
  Platyptilia 
  

   {Amblyptilia) 
  punctidactyla, 
  Hw. 
  (= 
  cosmodactyla, 
  Hb.). 
  In 
  

   a 
  very 
  long 
  series 
  of 
  this, 
  and 
  of 
  acafithodactyla, 
  Hb., 
  I 
  can 
  

   find 
  no 
  specimen 
  with 
  distinct 
  black 
  and 
  white 
  markings, 
  

   indeed, 
  a 
  true 
  black 
  spot 
  is 
  not 
  to 
  be 
  seen 
  on 
  any 
  other 
  Ameri- 
  

   can, 
  or 
  on 
  any 
  European 
  specimen 
  that 
  I 
  have 
  examined. 
  

  

  