﻿ADKINIA 
  BIPUNCTIDACTYLA. 
  

  

  339 
  

  

  outline, 
  very 
  small, 
  noticeably 
  long 
  in 
  comparison 
  with 
  width, 
  plump 
  and 
  some- 
  

   what 
  cylindrical 
  in 
  shape 
  ; 
  surface 
  shiny, 
  apparently 
  smooth, 
  with 
  what 
  looks 
  

   like 
  a 
  faint 
  reticulation 
  at 
  the 
  ? 
  micropylar 
  end. 
  [Tutt. 
  Described 
  with 
  a 
  hand 
  

   lens 
  on 
  August 
  17th, 
  1901, 
  from 
  seven 
  eggs 
  laid, 
  in 
  a 
  little 
  heap 
  on 
  a 
  setting-board, 
  

   by 
  a 
  dying 
  ? 
  , 
  captured 
  the 
  same 
  day 
  at 
  Bobbie.] 
  Habits 
  of 
  larva 
  : 
  The 
  spring 
  

   larvae 
  feed 
  on 
  Scabiosa 
  columbaria 
  in 
  April 
  and 
  May, 
  eating 
  down 
  into 
  the 
  heart 
  

   of 
  the 
  plant 
  before 
  the 
  flowering 
  stem 
  is 
  thrown 
  up, 
  and 
  thus 
  utterly 
  destroying 
  it. 
  

   Larva 
  : 
  The 
  young 
  larvae 
  were 
  found 
  abundantly 
  at 
  Llanferres, 
  on 
  March 
  25th 
  , 
  1873. 
  

   They 
  are 
  hirsute, 
  the 
  dorsal 
  region 
  suffused 
  with 
  lightish 
  pink 
  as 
  seen 
  through 
  

   the 
  rather 
  dense 
  hairs 
  ; 
  eacb 
  change 
  of 
  skin 
  reduces 
  the 
  colour 
  of 
  the 
  pink 
  streak 
  

   until 
  the 
  larva 
  is 
  fullfed, 
  when 
  it 
  has 
  no 
  pink 
  upon 
  it 
  (Gregson). 
  Fullfed 
  : 
  Three- 
  

   eighths 
  to 
  half-an-inch 
  long. 
  One 
  of 
  a 
  pale 
  yellowish-green 
  slightly 
  inclining 
  to 
  

   olive, 
  the 
  other 
  a 
  fuller 
  and 
  rather 
  deeper 
  green, 
  more 
  the 
  colour 
  of 
  the 
  leaf 
  of 
  the 
  

   foodplant 
  ; 
  the 
  body 
  not 
  very 
  stout, 
  and 
  very 
  slightly 
  tapering 
  to 
  the 
  rounded 
  hinder 
  

   extremity; 
  the 
  head 
  is 
  smaller 
  than 
  the 
  2nd 
  segment, 
  which 
  last 
  is 
  less 
  than 
  

   the 
  3rd, 
  so 
  that 
  it 
  tapers 
  in 
  front 
  from 
  the 
  3rd. 
  There 
  is 
  a 
  faintly 
  darker 
  

   dorsal 
  line 
  or 
  pulsating 
  vessel, 
  though, 
  on 
  the 
  shining 
  2nd 
  segment 
  ; 
  this 
  is 
  

   represented 
  as 
  a 
  double 
  line 
  of 
  faint 
  blackish, 
  and, 
  on 
  either 
  side 
  of 
  it, 
  on 
  the 
  

   subdorsal 
  region, 
  is 
  a 
  black 
  amorphous 
  spot. 
  The 
  head 
  is 
  much 
  of 
  the 
  same 
  tint 
  

   as 
  the 
  body, 
  though 
  faintly 
  browner 
  ; 
  the 
  jaws 
  are 
  darkish-brown, 
  with 
  a 
  rather 
  

   large 
  black 
  spot 
  at 
  the 
  lower 
  side 
  of 
  each 
  cheek 
  in 
  the 
  usual 
  situation 
  of 
  the 
  ocelli 
  ; 
  

   the 
  head 
  is 
  very 
  lustrous 
  in 
  polish 
  ; 
  very 
  faint 
  indications 
  exist 
  of 
  a 
  rather 
  paler 
  

   stripe 
  along 
  the 
  subdorsal 
  region, 
  but 
  so 
  softened 
  at 
  the 
  edges 
  as 
  to 
  be 
  so 
  illTdefined 
  

   as 
  not 
  to 
  warrant 
  its 
  being 
  noted 
  until 
  the 
  larva 
  has 
  fixed 
  itself 
  after 
  being 
  fullfed 
  ; 
  

   the 
  whole 
  surface 
  of 
  the 
  body 
  is 
  covered 
  with 
  very 
  short 
  bristles 
  of 
  a 
  dirty 
  whitish 
  

   colour, 
  mixed 
  in 
  places, 
  or 
  sprinkled, 
  with 
  a 
  few 
  blackish 
  ones, 
  notably 
  on 
  the 
  2nd, 
  

   3rd, 
  and 
  4th 
  (the 
  thoracic) 
  segment?, 
  and 
  more 
  sparsely 
  along 
  the 
  dorsal 
  vessel 
  

   and 
  last 
  segment 
  ; 
  in 
  addition 
  to 
  these 
  which 
  clothe 
  the 
  body, 
  are 
  regular 
  series 
  of 
  

   long 
  bristly 
  hairs, 
  dirty-whitish, 
  issuing 
  chiefly 
  from 
  the 
  usual 
  tubercular 
  positions, 
  

   sometimes 
  in 
  twos 
  or 
  threes 
  ; 
  the 
  spiracles 
  are 
  of 
  the 
  ground 
  colour 
  ringed 
  with 
  

   darkish-brown 
  (Buckler, 
  Larvae, 
  etc., 
  pp. 
  360 
  et 
  seq. 
  From 
  larvae 
  sent 
  May 
  9th, 
  

   1872, 
  as 
  scahiodactylus, 
  by 
  Gregson). 
  Foodplant: 
  Scabiosa 
  columbaria 
  (Gregson). 
  

   Va'riation 
  of 
  larva 
  : 
  Fullfed 
  larvae 
  received 
  from 
  Gregson, 
  June 
  5th, 
  1885, 
  were 
  

   characterised 
  by 
  the 
  absence 
  of 
  dorsal 
  markings 
  of 
  any 
  shade 
  of 
  either 
  red 
  or 
  

   brown 
  ; 
  a 
  slight 
  rosy 
  suffusion 
  of 
  the 
  anal 
  segmmt 
  took 
  place 
  as 
  soon 
  as 
  the 
  larvae 
  

   attached 
  themselves 
  for 
  pupation, 
  whilst 
  the 
  pink 
  or 
  rose-coloured 
  dorsal 
  markings 
  

   are 
  developed 
  in 
  the 
  pupa, 
  one 
  of 
  the 
  latter 
  being 
  suffused 
  over 
  the 
  whole 
  dorsal 
  

   area 
  with 
  rose-madder 
  ; 
  with 
  the 
  exception 
  of 
  the 
  obsolete 
  dorsal 
  markings, 
  the 
  

   larvae 
  are 
  identical 
  with 
  those 
  before 
  described, 
  viz., 
  whitish-green 
  ; 
  dorsal 
  stripe 
  

   rerldish-pink 
  (or 
  rose-madder), 
  most 
  distinct 
  on 
  the 
  9th 
  and 
  12th 
  segments. 
  The 
  

   larvae 
  (typical) 
  from 
  Folkestone 
  appear 
  to 
  be 
  identical 
  with 
  those 
  sent 
  as 
  scabio- 
  

   dactylus 
  by 
  Gregson, 
  from 
  Lancashire, 
  and 
  have 
  the 
  same 
  habits 
  (South). 
  

   Pupation 
  : 
  The 
  fullfed 
  larva 
  suspends 
  itself 
  by 
  the 
  tail 
  to 
  its 
  foodplant 
  on 
  a 
  blade 
  

   of 
  grass, 
  or 
  any 
  other 
  object 
  it 
  may 
  find 
  in 
  the 
  neighbourhood 
  of 
  its 
  food, 
  the 
  

   pupal 
  stage 
  lasting 
  about 
  fifteen 
  days 
  (Gregson) 
  ; 
  larva 
  fullfed 
  on 
  May 
  9th, 
  1872, 
  

   fixed 
  itself 
  by 
  its 
  tail 
  on 
  May 
  10th, 
  and 
  pupated 
  in 
  due 
  course, 
  the 
  pupa 
  being 
  

   figured 
  on 
  May 
  27th, 
  the 
  imago 
  emerged 
  June 
  9th 
  (Buckler) 
  ; 
  larvae 
  (from 
  Gregson) 
  

   fed 
  until 
  May 
  23rd, 
  1881, 
  pupated 
  May 
  27th 
  and 
  following 
  days; 
  in 
  1885, 
  full- 
  

   fed 
  larvae 
  from 
  North 
  Wales, 
  received 
  on 
  June 
  5th, 
  pupated 
  almost 
  at 
  once, 
  imagines 
  

   appearing 
  from 
  June 
  20th 
  onwards 
  (South). 
  Pita 
  : 
  Slender, 
  with 
  green 
  

   wing-cases 
  and 
  a, 
  pinkish 
  body 
  (Gregson). 
  Three-eighths 
  of 
  an 
  inch 
  in 
  length, 
  

   slender; 
  the 
  wing-cases 
  long, 
  the 
  tips 
  well-produced 
  and 
  projecting 
  a 
  little, 
  though 
  

   lying 
  close 
  along 
  the 
  abdomen 
  ; 
  the 
  head 
  and 
  thorax 
  rise 
  a 
  little 
  at 
  the 
  top 
  to 
  a 
  

   ridge 
  ; 
  the 
  tail 
  is 
  pointed. 
  Colour 
  green, 
  slightly 
  inclining 
  to 
  olive, 
  the 
  wing-covers 
  

   darker 
  green 
  ; 
  a 
  purplish-brown 
  dorsal 
  stripe, 
  and 
  two 
  parallel 
  lines 
  of 
  the 
  same 
  

   colour 
  along 
  the 
  subdorsal 
  region 
  (Buckler, 
  figured 
  May 
  27th, 
  1872. 
  Laroae, 
  etc., 
  

   pi. 
  clxiii., 
  fig. 
  9c). 
  Time 
  of 
  appearance 
  : 
  It 
  occurs 
  in 
  June 
  ami 
  July 
  in 
  Switzer- 
  

   land 
  (Frey), 
  and 
  Constant 
  notes 
  it 
  in 
  June 
  at 
  Couches-les-Mines, 
  hut 
  in 
  Savoy. 
  

   Daupniny, 
  and 
  Piedmont, 
  our 
  captures 
  have 
  all 
  been 
  made 
  in 
  the 
  latter 
  part 
  of 
  July 
  

   and 
  the 
  first 
  half 
  of 
  August. 
  Whether 
  it 
  is 
  single- 
  or 
  double- 
  brooded 
  in 
  the 
  moun- 
  

   tains, 
  we 
  do 
  not 
  know. 
  Thedafes 
  we 
  have 
  an 
  1 
  July 
  23rd. 
  mar 
  Raibl 
  (Zeller); 
  August 
  

   5th- 
  12th, 
  1896, 
  at 
  La 
  Grave; 
  August 
  L3th-20th, 
  L89t>, 
  al 
  Bourg 
  d'Oisans 
  ; 
  July26th- 
  

   30th, 
  1S97, 
  at 
  Gresy-sur-Aix 
  ; 
  August 
  Lst-5th, 
  L897, 
  at 
  St. 
  Michel 
  de 
  Maurienne 
  ; 
  

   August 
  6th- 
  1 
  2th, 
  at 
  Lanslebourg; 
  July 
  27th-3 
  1st, 
  L898,at 
  Bourg 
  St. 
  Maurice 
  ; 
  August 
  

   3rd, 
  1898, 
  on 
  the 
  Little 
  St. 
  Bernard; 
  August 
  8th-12th, 
  1901, 
  at 
  Bobbie; 
  July 
  

  

  