﻿GILLMERIA 
  PALLIDACTYLA. 
  237 
  

  

  it 
  under 
  the 
  name 
  bertrami, 
  whilst 
  Miihlig, 
  also 
  recognising 
  the 
  two 
  species, 
  referred 
  

   the 
  Achillea-feeding 
  one 
  to 
  ochrodactyla, 
  Hb., 
  and 
  named 
  the 
  Tanacetum-ieedmg 
  

   one 
  dichrodactylus 
  (Stett. 
  Ent. 
  Ztg., 
  1863, 
  p. 
  213). 
  We 
  are 
  at 
  a 
  loss 
  to 
  understand 
  

   why 
  Staudinger 
  and 
  Rebel 
  (Cat., 
  3rd 
  ed., 
  p. 
  72) 
  make 
  pallidactyla 
  , 
  Haw., 
  a 
  

   synonym 
  of 
  pcTirodactyla, 
  Hb.] 
  

  

  Original 
  description. 
  — 
  Alucita 
  pallidactyla 
  (The 
  pale 
  Plume). 
  Alis 
  

   anticis 
  ochroleucis, 
  nebulis 
  aliquot 
  saturatioribus. 
  Expansio 
  alarum 
  

   1 
  unc. 
  Alee 
  anticae 
  bifida? 
  ; 
  posticse, 
  tripartita 
  fusco-ochracese 
  

   (Haworth, 
  Lepidoptera 
  Britannica, 
  p. 
  478). 
  [Bossier 
  was 
  the 
  first 
  

   lepidopterist 
  to 
  give 
  a 
  comparative 
  diagnosis 
  of 
  the 
  species 
  as 
  apart 
  

   from 
  ochrodactyla, 
  Hb. 
  His 
  description 
  reads 
  : 
  " 
  It 
  is 
  not 
  so 
  large 
  as 
  

   ochrodactyla, 
  of 
  more 
  uniform 
  rust 
  colour, 
  without 
  the 
  well 
  denned 
  

   dark 
  brown 
  spots 
  of 
  ochrodactyla 
  (Miihlig's 
  dichrodactylus), 
  differing 
  

   particularly 
  in 
  having 
  light 
  yellow 
  scales 
  at 
  regular 
  intervals 
  marked 
  

   on 
  the 
  rust-coloured 
  ground 
  of 
  the 
  forewings, 
  producing 
  the 
  appearance 
  of 
  

   wood 
  shaved 
  by 
  a 
  blunt 
  plane; 
  the 
  two 
  dark 
  spots, 
  also, 
  near 
  the 
  

   cleft 
  of 
  the 
  forewings, 
  are 
  either 
  entirely 
  wanting 
  or 
  are 
  very 
  faint. 
  

   On 
  the 
  other 
  hand, 
  the 
  same 
  whitish 
  spots 
  noticeable 
  in 
  ochrodactyla 
  

   are 
  to 
  be 
  seen. 
  The 
  hindwings 
  rust-brown, 
  the 
  fringes 
  of 
  the 
  plumules 
  

   at 
  the 
  base 
  yellow, 
  at 
  the 
  tip 
  darker, 
  yet 
  not 
  so 
  contrasted 
  as 
  in 
  

   ochrodactyla, 
  in 
  which 
  the 
  fringes 
  appear 
  as 
  if 
  spotted 
  ; 
  the 
  position 
  of 
  

   the 
  scale-tuft 
  of 
  the 
  3rd 
  plumule 
  of 
  ochrodactyla 
  is 
  dark 
  brown, 
  whilst 
  

   in 
  this 
  species 
  it 
  only 
  shows 
  as 
  a 
  faint 
  dark 
  shading. 
  The 
  chief 
  

   difference, 
  however, 
  consists 
  in 
  the 
  colouring 
  of 
  the 
  hindlegs 
  ; 
  in 
  all 
  

   the 
  specimens 
  (10) 
  examined, 
  the 
  two 
  terminal 
  joints, 
  without 
  spurs, 
  

   are 
  uniform 
  yellowish-white 
  in 
  colour, 
  whilst 
  the 
  two 
  upper 
  joints 
  are 
  

   unicolorous 
  rusty-brown, 
  with 
  white 
  spurs, 
  only 
  towards 
  the 
  knee 
  does 
  

   the 
  colour 
  become 
  gradually 
  lighter. 
  The 
  apex 
  somewhat 
  less 
  hooked 
  

   in 
  bred 
  specimens" 
  (Wien. 
  Ent. 
  Monats., 
  1864, 
  pp. 
  53-54).] 
  (See 
  also 
  

   antea, 
  pp. 
  223-4.) 
  

  

  Imago." 
  — 
  22mm. 
  -26mm. 
  Anterior 
  wings 
  moderately 
  extended 
  at 
  

   apex. 
  Pale 
  ochreous, 
  or 
  whitish-ochreous, 
  in 
  tint, 
  washed 
  with 
  darker 
  

   ochreous 
  along 
  the 
  costa, 
  along 
  the 
  base 
  of 
  the 
  discal 
  area, 
  and 
  narrowly 
  

   at 
  the 
  base 
  of 
  the 
  inner 
  margin 
  ; 
  the 
  discal 
  area 
  from 
  base 
  to 
  fissure 
  

   pale 
  ; 
  a 
  pale 
  lunule 
  from 
  costa 
  to 
  end 
  of 
  fissure 
  ; 
  two 
  inconspicuous 
  

   dark 
  brown 
  discocellular 
  spots; 
  the 
  lobes 
  washed 
  with 
  darker 
  ochreous; 
  

   an 
  ill-developed, 
  pale, 
  transverse, 
  lobal 
  line 
  parallel 
  to 
  hind 
  margin, 
  

   obsolete 
  on 
  second 
  lobe 
  ; 
  costal 
  and 
  outer 
  marginal 
  lines 
  dark 
  brown 
  ; 
  

   fringes 
  glossy 
  white, 
  with 
  darker 
  patch 
  at 
  anal 
  angle 
  and 
  on 
  inner 
  

   margin. 
  Posterior 
  wings 
  glossy 
  ochreous-brown, 
  costal 
  edges 
  of 
  1st 
  

   and 
  2nd 
  plumules 
  darker 
  ; 
  a 
  slight 
  trace 
  of 
  the 
  dark 
  scale-patch 
  near 
  

   middle 
  of 
  outer 
  margin 
  of 
  3rd 
  plumule 
  ; 
  fringes 
  glossy 
  grey-brown, 
  

   hardly 
  so 
  dark 
  as 
  wings. 
  

  

  Genitalia.— 
  Fernakl 
  gives 
  (Pter. 
  Nth. 
  America, 
  pi. 
  iii., 
  figs. 
  4-5) 
  

   drawings 
  of 
  the 
  genitalia 
  of 
  this 
  species, 
  and 
  adds 
  [op. 
  cit., 
  p. 
  34) 
  : 
  

   " 
  For 
  the 
  sake 
  of 
  comparison 
  the 
  genitalia 
  of 
  (i. 
  ochrodactyla 
  are 
  

   represented 
  on 
  the 
  same 
  plate 
  (figs. 
  14-15). 
  These 
  drawings 
  were 
  made 
  

   from 
  specimens 
  received 
  from 
  Zeller, 
  which 
  are 
  labelled 
  in 
  his 
  own 
  

   handwriting." 
  

  

  * 
  The 
  colour 
  consists 
  of 
  shades 
  of 
  t'awn-colour 
  and 
  brown, 
  the 
  darker 
  shades 
  

   indistinctly 
  margined, 
  mere 
  washes 
  of 
  colour, 
  not 
  sharply 
  laid 
  on 
  like 
  those 
  of 
  

   dichrodactyla,. 
  The 
  spot 
  near 
  the 
  fissure 
  when 
  present 
  at 
  all 
  is 
  exceedingly 
  taint. 
  

   The 
  hooked 
  apex, 
  which 
  in 
  some 
  specimens, 
  probably 
  ? 
  S, 
  is 
  well-marked, 
  is 
  less 
  

   emarginate 
  on 
  the 
  lower 
  side, 
  and 
  the 
  apex 
  consequently 
  less 
  pointed 
  than 
  in 
  

   ochrodactyla 
  (Sang). 
  

  

  