﻿322 
  

  

  BRITISH 
  LEPIDOPTERA. 
  

  

  examples 
  in 
  Hodgkin 
  son's 
  collection 
  under 
  this 
  name, 
  and 
  captured 
  by 
  

   him, 
  are 
  simply 
  worn 
  A. 
  bipunctidactyla. 
  

  

  Comparison 
  of 
  Adkinia 
  zophodactylus 
  and 
  A. 
  bipunctidactyla. 
  — 
  

   The 
  former 
  is 
  nearly 
  allied 
  to 
  bipunctidactyla 
  and 
  plagiodactyla, 
  but 
  

   recognised 
  at 
  a 
  glance 
  by 
  the 
  costal 
  cilia 
  from 
  the 
  middle 
  of 
  the 
  wing 
  

   to 
  the 
  apex 
  being 
  white. 
  The 
  ground 
  colour 
  of 
  the 
  anterior 
  wings 
  is 
  

   more 
  of 
  a 
  slaty-grey 
  tint 
  than 
  in 
  bipunctidactyla, 
  only 
  the 
  inner 
  

   margin 
  having 
  a 
  brownish 
  tinge 
  (Stainton). 
  Hofmann 
  says 
  (Die 
  

   Deutsch. 
  Pteroph., 
  p. 
  81) 
  that, 
  "at 
  the 
  anal 
  angle 
  of 
  the 
  front 
  lobe 
  of 
  the 
  

   forewing, 
  there 
  are 
  two 
  distinct 
  black 
  dots, 
  one 
  above 
  the 
  other, 
  by 
  which 
  

   A. 
  zophodactylus 
  may 
  easily 
  be 
  separated 
  from 
  all 
  the 
  allied 
  species, 
  

   whilst 
  at 
  the 
  apex 
  of 
  the 
  hind 
  lobe 
  the 
  two 
  typical 
  dots 
  are 
  to 
  

   be 
  found." 
  Although 
  the 
  white 
  edging 
  along 
  the 
  outer 
  half 
  of 
  the 
  costa 
  

   is 
  usually 
  a 
  clear 
  indication 
  of 
  A. 
  zophodactylus, 
  yet 
  we 
  have 
  British 
  

   specimens 
  that 
  do 
  not 
  clearly 
  show 
  this 
  character 
  ; 
  but, 
  in 
  such 
  

   doubtful 
  specimens, 
  the 
  presence 
  of 
  the 
  two 
  tiny 
  black 
  dots 
  at 
  the 
  

   anal 
  angle 
  of 
  the 
  upper 
  lobe 
  of 
  the 
  forewing 
  appears 
  to 
  be 
  an 
  unfailing 
  

   indication. 
  It 
  is 
  also 
  markedly 
  characteristic 
  that 
  the 
  white 
  scales 
  in 
  

   A. 
  zophodactylus, 
  are 
  much 
  more 
  irregularly 
  and 
  generally 
  sprinkled 
  

   than 
  in 
  A. 
  bipunctidactyla 
  ; 
  whilst 
  the 
  tendency 
  of 
  the 
  discal 
  and 
  

   fissural 
  dots 
  to 
  form 
  weak 
  lineolse 
  of 
  a 
  grey-brown 
  rather 
  than 
  a 
  

   black 
  tint, 
  and 
  for 
  the 
  upper 
  of 
  the 
  fissural 
  dots 
  in 
  addition, 
  to 
  fade 
  

   off 
  into 
  a 
  weak 
  shade 
  towards 
  the 
  costa 
  are 
  sufficiently 
  striking 
  on 
  

   close 
  examination 
  of 
  A. 
  zophodactylus 
  ; 
  the 
  apex 
  of 
  the 
  upper 
  lobe 
  

   appears 
  also 
  to 
  be 
  usually 
  rather 
  more 
  hooked 
  in 
  A. 
  zophodactylus 
  than 
  

   in 
  A. 
  bipunctidactyla. 
  

  

  Egglaying. 
  — 
  Eggs 
  were 
  laid 
  during 
  the 
  last 
  ten 
  days 
  of 
  July, 
  

   1904, 
  on 
  the 
  green 
  seed-vessels 
  just 
  below 
  the 
  flowers 
  of 
  Erythraea 
  

   centaurium 
  (Bankes) 
  ; 
  eggs 
  laid 
  on 
  the 
  bases 
  of 
  the 
  flowers 
  in 
  some 
  

   numbers, 
  sometimes 
  on 
  one 
  another 
  (Bacot). 
  Some 
  eggs 
  were 
  laid 
  on, 
  

   or 
  about, 
  July 
  25tb, 
  1901, 
  by 
  a 
  captured 
  2 
  , 
  also 
  others 
  on, 
  or 
  about, 
  

   the 
  same 
  date 
  by 
  a 
  bred 
  ? 
  . 
  Although 
  this 
  bred 
  2 
  laid 
  fertile 
  ova, 
  

   and 
  must, 
  therefore, 
  have 
  paired 
  with 
  a 
  bred 
  g 
  , 
  and 
  the 
  other, 
  captured 
  

   in 
  the 
  pink 
  of 
  condition, 
  may 
  perhaps 
  have 
  paired 
  in 
  confinement, 
  

   the 
  moths 
  were 
  never 
  observed 
  in 
  cop., 
  although 
  they 
  were 
  looked 
  at, 
  

   daily, 
  at 
  frequent 
  intervals 
  between 
  7 
  a.m. 
  and 
  11 
  p.m. 
  They 
  

   probably 
  paired 
  late 
  at 
  night, 
  but 
  cannot 
  have 
  remained 
  together 
  for 
  

   many 
  hours 
  (Bankes). 
  

  

  Ovum. 
  — 
  When 
  first 
  laid, 
  greenish-white 
  (Bankes) 
  ; 
  of 
  a 
  trans- 
  

   parent 
  pale 
  yellow 
  colour, 
  when 
  far 
  advanced 
  in 
  development 
  the 
  

   larval 
  embryo 
  faintly 
  seen 
  within 
  the 
  eggshell, 
  the 
  ocelli 
  showing 
  up 
  

   as 
  a 
  dark 
  spot 
  on 
  the 
  head. 
  The 
  surface 
  is 
  smooth 
  and 
  glistening; 
  

   there 
  is 
  some 
  wide 
  and 
  rather 
  coarse, 
  but 
  poorly 
  marked, 
  surface 
  

   sculpturing, 
  and 
  this 
  appears 
  to 
  be 
  very 
  similar 
  to 
  that 
  on 
  the 
  egg 
  

   of 
  A. 
  bipunctidactyla 
  — 
  longitudinal 
  corrugations 
  on 
  the 
  sides, 
  and 
  

   irregular 
  cell-pattern 
  on 
  the 
  shoulders 
  and 
  micropylar 
  end. 
  The 
  egg 
  

   is 
  roughly 
  oval 
  with 
  flattened 
  sides, 
  but 
  is 
  somewhat 
  irregular 
  

   in 
  shape. 
  The 
  nadir 
  is 
  narrower 
  and 
  more 
  rounded 
  than 
  the 
  

   micropylar 
  end, 
  and 
  appears 
  somewhat 
  pointed 
  in 
  contrast 
  with 
  it, 
  

   the 
  tapering 
  to 
  base 
  occurring 
  on 
  both 
  sides 
  and 
  edges. 
  Length 
  

   •4mm. 
  (two 
  eggs) 
  to 
  -36mm. 
  (one 
  egg) 
  ; 
  width 
  -23mm. 
  : 
  thickness 
  

   •18mm.-'2mm. 
  (Bacot, 
  July 
  28th, 
  1904). 
  

  

  Habits 
  of 
  larva. 
  — 
  Practically 
  nothing 
  is 
  known 
  of 
  the 
  early 
  life 
  of 
  

  

  