﻿Lycaena 
  alcon 
  F., 
  as 
  reared 
  in 
  1918-1919. 
  447 
  

  

  in 
  connection 
  with 
  black 
  patch 
  uncertain. 
  L. 
  alcon 
  No. 
  1 
  

   shows 
  very 
  markedly 
  about 
  and 
  below 
  spiracular 
  region 
  

   the 
  " 
  fat-bodies 
  " 
  with 
  their 
  rounded 
  convolutions 
  and 
  

   sulci 
  between, 
  filled 
  wdth 
  clear 
  fluid, 
  not 
  at 
  all 
  unlike 
  

   cerebral 
  convolutions. 
  

  

  June 
  16." 
  — 
  No. 
  2 
  can 
  hardly 
  be 
  called 
  smaller 
  than 
  No. 
  1. 
  

   Yet 
  in 
  colour 
  No. 
  1 
  is 
  almost 
  yellow, 
  a 
  pale 
  sandy 
  colour, 
  

   whilst 
  No. 
  2 
  is 
  still 
  pink, 
  a 
  warm 
  flesh 
  colour. 
  

  

  Shortly 
  after 
  last 
  entry, 
  on 
  looking 
  into 
  the 
  nests, 
  No. 
  2 
  

   was 
  seen 
  to 
  have 
  the 
  remains 
  of 
  an 
  ant 
  larva 
  in 
  the 
  usual 
  

   position, 
  the 
  front 
  segments 
  curled 
  ventrally 
  so 
  as 
  to 
  

   bring 
  them 
  round 
  the 
  small 
  remains 
  of 
  the 
  ant 
  larva, 
  held 
  

   by 
  this 
  curvature 
  and 
  between 
  the 
  prothorax 
  (and 
  head) 
  

   and 
  the 
  3rd 
  and 
  4th 
  abdominal 
  segments. 
  In 
  no 
  ease 
  has 
  

   the 
  larva 
  gone 
  on 
  eating 
  when 
  exposed 
  to 
  the 
  light. 
  

  

  No. 
  3 
  seems 
  to 
  have 
  mesothorax 
  rather 
  swollen. 
  

  

  June 
  16.— 
  Third 
  note, 
  later, 
  4.30 
  p.m. 
  (G.M.T.). 
  No. 
  3 
  

   L. 
  alcon 
  is 
  found 
  to 
  be 
  lethargic 
  and 
  motionless, 
  the 
  thoracic 
  

   segments 
  are 
  enlarged, 
  more 
  in 
  length 
  than 
  thickness, 
  

   there 
  is 
  a 
  slight 
  waist 
  at 
  1st 
  abl. 
  The 
  abdominal 
  segments 
  

   are 
  still 
  thicker 
  than 
  the 
  thoracic. 
  The 
  black 
  marks 
  

   remain 
  as 
  noted, 
  i. 
  e. 
  not 
  extending 
  in 
  any 
  way. 
  The 
  

   larva 
  is 
  obviously 
  near 
  pupation, 
  so 
  is 
  placed 
  alone 
  in 
  a 
  

   separate 
  vessel 
  to 
  try 
  to 
  secure 
  cast 
  skin. 
  Whether 
  the 
  

   black 
  marks 
  will 
  prevent 
  due 
  pupation 
  remains 
  to 
  be 
  seen. 
  

  

  June 
  18. 
  — 
  No. 
  3 
  found 
  this 
  morning 
  to 
  have 
  pupated, 
  

   the 
  skin 
  is 
  cast, 
  but 
  the 
  black 
  mark 
  seems 
  to 
  have 
  been 
  

   removed 
  only 
  by 
  some 
  tearing 
  (of 
  1st 
  leg 
  probably), 
  and 
  

   some 
  bleeding 
  had 
  occurred, 
  and 
  the 
  pupa 
  looks 
  shrunk, 
  

   so 
  will 
  probably 
  not 
  mature. 
  

  

  No. 
  1 
  was 
  last 
  night 
  away 
  from 
  brood, 
  with 
  a 
  few 
  ants 
  

   in 
  attendance, 
  and 
  prothorax 
  looked 
  swollen. 
  This 
  

   morning, 
  lengthening 
  of 
  thorax 
  and 
  appearance 
  of 
  waist 
  

   shows 
  preparation 
  of 
  pupal 
  moult. 
  

  

  Jime 
  19. 
  — 
  ^No. 
  1 
  is 
  laid 
  up 
  for 
  pupation, 
  quite 
  lethargic. 
  

  

  No. 
  2 
  is 
  measured 
  to-day, 
  over 
  14 
  mm., 
  not 
  quite 
  15; 
  

   moving 
  too 
  much 
  to 
  be 
  quite 
  precise; 
  is 
  still 
  phik, 
  though 
  

   pale, 
  not 
  yellowish 
  like 
  Nos. 
  1 
  and 
  3 
  when 
  full 
  grown. 
  

  

  June 
  20. 
  — 
  7 
  a.m. 
  No. 
  1 
  has 
  just 
  pupated. 
  No. 
  3 
  pupa 
  

   apparently 
  alive, 
  but 
  discoloured 
  in 
  places. 
  

  

  No. 
  2 
  seems 
  larger 
  and 
  fatter 
  and 
  rather 
  paler; 
  is 
  a 
  little 
  

   away 
  from 
  brood. 
  

  

  June 
  22. 
  — 
  No. 
  2 
  hes 
  away 
  from 
  brood, 
  lethargic, 
  meso- 
  

   thorax 
  a 
  little 
  enlarged, 
  1st 
  and 
  2nd 
  abl 
  form 
  a 
  sUght 
  

  

  