﻿2t>2 
  BRITISH 
  LEPIDOPTERA. 
  

  

  subdorsal 
  and 
  spiracular 
  lines 
  vary 
  in 
  distinctness, 
  pale 
  yellowish 
  in 
  

   colour. 
  

  

  Foodplants. 
  — 
  Rosacanina 
  (Schiffermiiller), 
  R. 
  centifolia 
  (Treitschke). 
  

  

  Pupation. 
  — 
  The 
  larva 
  makes 
  some 
  pretension 
  to 
  spinning 
  a 
  cocoon, 
  

   although 
  it 
  is 
  a 
  very 
  slight 
  one 
  ; 
  it 
  hardly 
  amounts 
  to 
  a 
  hammock, 
  

   there 
  being 
  simply 
  a 
  few 
  silken 
  threads 
  used 
  to 
  draw 
  a 
  leaf 
  or 
  two 
  

   together 
  at 
  the 
  junction 
  of 
  the 
  leaflets 
  with 
  the 
  leaf 
  -stalk, 
  or 
  the 
  sepals 
  

   together 
  over 
  the 
  centre 
  of 
  the 
  flower 
  after 
  the 
  petals 
  have 
  fallen, 
  and 
  

   some 
  silk 
  over 
  the 
  leaf 
  surface. 
  The 
  hooks 
  of 
  the 
  8th 
  abdominal 
  

   segment, 
  as 
  well 
  as 
  those 
  of 
  the 
  anal 
  armature, 
  are 
  involved 
  in 
  the 
  

   support 
  of 
  the 
  pupa, 
  although 
  the 
  pupal 
  position 
  appears 
  to 
  be 
  rather 
  

   that 
  of 
  lying 
  in 
  a 
  hammock 
  than 
  the 
  normal 
  attachment 
  to 
  a 
  pad 
  of 
  

   silk 
  (Bacot). 
  When 
  full-grown, 
  the 
  larvae, 
  that 
  have 
  been 
  feeding 
  on 
  

   the 
  buds, 
  affix 
  themselves 
  to 
  the 
  side 
  of 
  the 
  leaf 
  close 
  by 
  the 
  bud, 
  

   and 
  draw 
  the 
  leaf 
  and 
  the 
  bud 
  together 
  by 
  means 
  of 
  a 
  few 
  silken 
  

   threads 
  ; 
  the 
  others 
  draw 
  together, 
  in 
  a 
  similar 
  way, 
  several 
  leaves 
  at 
  

   the 
  end 
  of 
  the 
  young 
  shoot 
  (Porritt). 
  The 
  pupa 
  is 
  attached 
  by 
  the 
  

   anal 
  segment 
  to 
  the 
  flower-stem 
  just 
  below 
  the 
  ovary, 
  and 
  protected 
  by 
  

   a 
  slight 
  network 
  of 
  silk, 
  which 
  unites 
  a 
  leaf 
  with 
  a 
  flower-bud. 
  The 
  

   pupa 
  stands 
  erect, 
  and, 
  in 
  this 
  position, 
  bears 
  a 
  superficial 
  resemblance 
  

   to 
  a 
  stunted 
  rosebud 
  (South). 
  Barrett 
  erroneously 
  states 
  that 
  the 
  pupa 
  

   "hangs 
  loosely 
  from 
  a 
  small 
  tuft 
  of 
  silk." 
  On 
  the 
  contrary, 
  it 
  is 
  

   fixed 
  firmly 
  in 
  true 
  Alucitid 
  fashion 
  by 
  the 
  8th 
  and 
  10th 
  abdominal 
  

   cremastral 
  hooks, 
  with 
  its 
  venter 
  closely 
  appressed 
  to 
  the 
  stalk, 
  leaf, 
  

   or 
  bud, 
  of 
  which 
  its 
  loosely 
  spun 
  puparium 
  is 
  formed. 
  Chapman 
  

   observes 
  that 
  the 
  larva 
  spins 
  quite 
  a 
  cocoon 
  of 
  very 
  sparse 
  cables, 
  forming 
  

   a 
  loose 
  open 
  web, 
  extending 
  more 
  than 
  its 
  own 
  length 
  in 
  most 
  

   directions, 
  and 
  pulling 
  together 
  the 
  surrounding 
  leaves, 
  etc. 
  ; 
  the 
  pupa 
  

   is 
  suspended 
  in 
  a 
  nearly 
  inverted 
  position, 
  its 
  actual 
  attachment, 
  how- 
  

   ever, 
  being 
  by 
  the 
  usual 
  two 
  sets 
  of 
  hooks, 
  forming 
  the 
  anal 
  and 
  

   ventral 
  parts 
  of 
  the 
  cremaster. 
  Warren 
  says 
  that, 
  when 
  the 
  species 
  is 
  

   found 
  in 
  a 
  high 
  hedge, 
  where 
  the 
  rose-bushes 
  rise 
  to 
  the 
  top 
  and 
  flower 
  

   there, 
  one 
  will 
  always 
  find 
  the 
  puparia, 
  containing 
  empty 
  pupae 
  (and 
  

   therefore 
  unemerged 
  ones 
  at 
  the 
  right 
  time), 
  between 
  the 
  stunted 
  bud 
  

   and 
  a 
  leaf 
  growing 
  hard 
  by, 
  but 
  a 
  favourite 
  position 
  in 
  younger 
  

   bushes 
  is 
  beneath 
  two 
  or 
  three 
  leaves 
  slightly 
  fastened, 
  but 
  not 
  drawn 
  

   altogether 
  out 
  of 
  place 
  ; 
  four 
  pupae 
  were 
  once 
  found, 
  one 
  behind 
  the 
  

   other, 
  on 
  an 
  exposed 
  stalk 
  by 
  the 
  side 
  of 
  a 
  dusty 
  road, 
  the 
  whole 
  branch 
  

   being 
  both 
  cobwebby 
  and 
  dusty. 
  Hofmann 
  notes 
  that 
  the 
  larva 
  pupates 
  

   within 
  its 
  feeding-place 
  ; 
  Steudel, 
  that 
  it 
  fixes 
  itself 
  for 
  pupation 
  in 
  

   a 
  thin 
  web 
  between 
  the 
  rose-leaves. 
  Butterfield 
  also 
  observes 
  that 
  the 
  

   larvae 
  pupate 
  in 
  the 
  webs 
  in 
  which 
  they 
  have 
  fed 
  up. 
  

  

  Pupa. 
  — 
  Length 
  7mm.-7'5mm. 
  ; 
  width 
  at 
  widest 
  part 
  l-9mm. 
  The 
  

   colour 
  has 
  some 
  claim 
  to 
  be 
  called 
  white* 
  ; 
  it 
  is 
  really 
  green, 
  but 
  with 
  

   a 
  whitish 
  porcellanous 
  tone 
  that 
  is 
  very 
  pronounced 
  about 
  the 
  anterior 
  

   portion 
  of 
  the 
  pupa 
  and 
  dominates 
  the 
  wings, 
  especially 
  after 
  they 
  

   commence 
  to 
  get 
  a 
  little 
  developed. 
  In 
  this 
  respect, 
  it 
  reminds 
  one 
  

   somewhat 
  of 
  the 
  pupa 
  of 
  Gillmeria 
  pallidactyla, 
  Beverting 
  to 
  colouring, 
  

  

  * 
  Grass-green 
  in 
  colour, 
  paler, 
  and 
  white, 
  on 
  wings 
  and 
  anteriorly 
  ; 
  a 
  narrow- 
  

   black 
  margin 
  round 
  wings, 
  of 
  which, 
  however, 
  the 
  antennae 
  form 
  one 
  border 
  ; 
  the 
  

   latter 
  are 
  black, 
  but 
  basally 
  each 
  segment 
  has 
  a 
  little 
  green 
  colour 
  ; 
  the 
  face 
  has 
  a 
  

   black 
  streak 
  on 
  each 
  side, 
  and 
  the 
  maxillse 
  and 
  1st 
  legs 
  are 
  also 
  largely 
  black. 
  The 
  

   lateral 
  dorsal 
  ridge 
  (containing 
  trapezoidals) 
  is 
  faintly 
  yellow, 
  especially 
  where 
  it 
  

  

  