﻿498 
  BKITISH 
  LEPIDOPTERA. 
  

  

  by 
  2 
  (no. 
  2) 
  caught 
  near 
  Wareham, 
  Dorset, 
  August 
  20th, 
  1904. 
  Single 
  

   ovum 
  laid 
  August 
  23rd, 
  1904, 
  by 
  ? 
  (no. 
  3) 
  caught 
  near 
  Wareham, 
  

   Dorset, 
  August 
  20th, 
  1904. 
  These 
  three 
  2 
  s 
  all 
  died 
  after 
  laying 
  

   a 
  single 
  egg 
  each, 
  one 
  egg 
  being 
  attached 
  to 
  the 
  paper 
  of 
  the 
  cardboard 
  

   box, 
  while 
  the 
  other 
  two 
  were 
  dropped 
  as 
  the 
  moths 
  were 
  expiring. 
  

   Two 
  ova 
  laid 
  August 
  26th, 
  1904, 
  by 
  $ 
  caught 
  near 
  Wareham, 
  Dorset, 
  

   August 
  23rd, 
  1904. 
  Fourteen 
  ova 
  laid 
  August 
  26th-30th, 
  1904, 
  by 
  ? 
  

   caught 
  near 
  Wareham, 
  Dorset, 
  August 
  23rd, 
  1904. 
  All 
  these 
  ova 
  were 
  

   sent 
  to 
  Dr. 
  Chapman 
  (Bankes). 
  Chapman 
  writes 
  : 
  " 
  My 
  observations 
  

   began 
  in 
  August, 
  1904, 
  when 
  I 
  received 
  several 
  eggs 
  from 
  Mr. 
  Bankes, 
  

   laid 
  by 
  $ 
  s 
  captured 
  near 
  Wareham, 
  Dorset. 
  I 
  find 
  from 
  my 
  notes 
  that 
  

   2 
  s, 
  taken 
  August 
  20th, 
  laid 
  eggs 
  from 
  which 
  two 
  larvae 
  hatched 
  on 
  

   August 
  30th, 
  and 
  from 
  a 
  $ 
  , 
  captured 
  August 
  23rd, 
  two 
  larvae 
  

   hatched 
  on 
  September 
  6th. 
  A 
  further 
  supply 
  of 
  eggs 
  was 
  received 
  

   on 
  August 
  31st. 
  The 
  first 
  larvae 
  that 
  hatched 
  were 
  placed 
  on 
  all 
  

   sorts 
  of 
  bog-plants 
  obtainable 
  near 
  Reigate, 
  but 
  without 
  result, 
  and 
  

   when 
  these 
  were 
  finally 
  placed 
  on 
  the 
  Drosera 
  plants, 
  sent 
  by 
  Mr. 
  

   Bankes, 
  they 
  were 
  already 
  rather 
  exhausted. 
  It 
  was 
  on 
  August 
  31st, 
  

   1904, 
  that 
  the 
  plants 
  of 
  Drosera 
  arrived, 
  along 
  with 
  sixteen 
  eggs 
  on 
  the 
  

   same 
  date. 
  Some 
  of 
  these 
  eggs 
  were 
  laid 
  loosely, 
  two 
  were 
  on 
  leno, 
  

   and 
  the 
  rest 
  on 
  a 
  flower-stalk, 
  or 
  rather 
  fruit-head, 
  of 
  Drosera. 
  A 
  

   curious 
  point 
  is 
  that, 
  of 
  the 
  August 
  31st 
  eggs, 
  those 
  separate, 
  and 
  one 
  

   on 
  the 
  muslin, 
  hatched 
  ; 
  the 
  others 
  on 
  the 
  muslin 
  proved 
  infertile 
  and 
  

   did 
  not 
  change 
  colour. 
  Those 
  hatched 
  September 
  6th; 
  the 
  eggs 
  on 
  

   the 
  seed- 
  stem 
  are 
  still 
  (14th) 
  unhatched 
  ; 
  they 
  changed 
  colour 
  a 
  day 
  

   or 
  two 
  later 
  than 
  the 
  others, 
  and 
  their 
  hatching 
  was 
  expected 
  about 
  

   the 
  8th, 
  but 
  they 
  make 
  no 
  sign. 
  The 
  young 
  larvae 
  inside 
  have, 
  since 
  

   that 
  date, 
  been 
  obviously 
  mature. 
  The 
  eggs 
  remain 
  free 
  from 
  

   shrinking, 
  mould, 
  or 
  other 
  sign 
  of 
  death 
  or 
  decay, 
  and 
  give 
  the 
  

   impression 
  of 
  intending 
  hibernation. 
  On 
  September 
  16th, 
  1904, 
  the 
  

   remaining 
  eggs 
  were 
  still 
  unhatched, 
  and 
  they 
  ultimately 
  proved 
  to 
  be 
  

   dead" 
  (Chapman). 
  Moths 
  that 
  were 
  confined 
  over 
  growing 
  Drosera 
  in 
  

   June, 
  1905, 
  with 
  a 
  view 
  to 
  eggs, 
  never 
  got 
  caught 
  by 
  the 
  plants 
  except 
  on 
  

   one 
  occasion, 
  when 
  a 
  moth 
  escaped 
  only 
  by 
  losing 
  a 
  leg 
  caught 
  in 
  the 
  

   glue 
  ; 
  another 
  moth 
  fell 
  on 
  a 
  leaf, 
  where 
  it 
  died, 
  and, 
  being 
  left 
  there, 
  

   was 
  largely 
  enveloped 
  by 
  the 
  leaf 
  after 
  a 
  few 
  days. 
  Some 
  moths 
  thus 
  

   confined, 
  between 
  June 
  18th-29th, 
  1905, 
  laid 
  eggs 
  in 
  confinement, 
  one 
  

   was 
  detected 
  beneath 
  a 
  leaf-petiole, 
  another 
  attached 
  to 
  a 
  gland-stalk 
  

   at 
  the 
  margin 
  of 
  a 
  leaf, 
  and 
  so 
  on. 
  On 
  June 
  17th, 
  1905, 
  South 
  also 
  

   obtained 
  a 
  pairing 
  in 
  confinement, 
  the 
  $ 
  remaining 
  alive 
  some 
  days 
  

   over 
  the 
  foodplant 
  ; 
  she 
  laid 
  eggs 
  on, 
  and 
  around, 
  the 
  foodplant 
  ; 
  it 
  

   was 
  from 
  the 
  eggs 
  thus 
  obtained 
  by 
  South 
  and 
  Chapman 
  that 
  our 
  

   knowledge 
  of 
  the 
  life-history 
  of 
  the 
  summer 
  brood 
  was 
  obtained. 
  

  

  Ovum. 
  — 
  Bright 
  yellow 
  at 
  first, 
  becoming 
  afterwards 
  duller 
  in 
  tint. 
  

   It 
  is 
  oval 
  in 
  any 
  longitudinal 
  section, 
  circular 
  in 
  any 
  transverse 
  one. 
  

   Its 
  length 
  is 
  0'38mm., 
  and 
  its 
  diameter 
  0-24mm. 
  It 
  has 
  very 
  large, 
  

   bold, 
  sculpturing, 
  consisting 
  of 
  a 
  net-work 
  of 
  ribs 
  enclosing 
  irregular 
  

   polygons. 
  The 
  ribs 
  are 
  broad, 
  about 
  one-third 
  of 
  the 
  width 
  of 
  the 
  

   enclosed 
  hexagons 
  (or 
  as 
  may 
  be). 
  The 
  diameter 
  of 
  the 
  cells 
  is 
  about 
  

   0*02mm., 
  of 
  a 
  cell 
  and 
  one 
  wall 
  about 
  0-026mm. 
  (Chapman). 
  

  

  Habits 
  of 
  larva. 
  — 
  Autumn, 
  winter, 
  and 
  spring 
  larva 
  : 
  The 
  first 
  

   larvae 
  that 
  hatched 
  (two 
  on 
  August 
  30th, 
  1904, 
  from 
  eggs 
  laid 
  by 
  $ 
  s 
  

   taken 
  August 
  20th) 
  were 
  placed 
  on 
  all 
  sorts 
  of 
  bog-plants 
  obtainable 
  

  

  