﻿510 
  BRITISH 
  LEPIDOPTERA. 
  

  

  all 
  decidedly 
  so. 
  The 
  length 
  of 
  the 
  pupa 
  is 
  6-7mm. 
  ; 
  width 
  of 
  thorax, 
  

   l'8mm. 
  ; 
  abdomen, 
  l*2mm. 
  ; 
  lmm. 
  at 
  about 
  the 
  5th 
  abdominal 
  segment; 
  

   the 
  2 
  apparently 
  a 
  little 
  shorter 
  and 
  thicker. 
  The 
  thickness 
  is 
  much 
  

   the 
  same 
  to 
  nearly 
  the 
  end 
  of 
  the 
  5th 
  abdominal 
  segment 
  (and 
  wing- 
  

   cases), 
  whence 
  it 
  (in 
  2mm.) 
  tapers 
  regularly 
  to 
  a 
  rather 
  fine 
  point, 
  at 
  

   least 
  it 
  does 
  so, 
  seen 
  sideways, 
  and, 
  seen 
  dorsally, 
  the 
  thorax 
  is 
  wider 
  

   than 
  the 
  following 
  segments, 
  and 
  the 
  tapering 
  of 
  the 
  6th 
  abdominal 
  

   segment 
  onwards 
  is 
  by 
  a 
  curved 
  outline, 
  with 
  sharper 
  finish 
  in 
  the 
  9th 
  

   and 
  10th 
  abdominal 
  segments. 
  The 
  head 
  in 
  front 
  is 
  rounded, 
  but 
  has 
  

   two 
  lateral 
  eminences, 
  and 
  a 
  double 
  (or 
  two 
  minute) 
  frontal 
  one 
  between 
  

   them. 
  Seen 
  dorsally, 
  when 
  the 
  form 
  has 
  been 
  fully 
  acquired, 
  but 
  the 
  

   pink 
  colour 
  of 
  the 
  dorsal 
  tubercles 
  persists, 
  it 
  is 
  a 
  most 
  beautiful 
  

   object, 
  from 
  the 
  elegance 
  of 
  its 
  outline 
  and 
  delicate, 
  but 
  bright, 
  colouring. 
  

   The 
  hairs 
  are 
  of 
  some 
  assistance 
  to 
  the 
  pleasing 
  effect. 
  Before 
  

   describing 
  the 
  hairs, 
  it 
  may 
  be 
  best 
  to 
  note 
  that 
  there 
  is 
  the 
  usual 
  

   double 
  dorsal 
  flange, 
  or 
  ridge, 
  beginning 
  behind 
  the 
  middle 
  of 
  the 
  

   mesothorax, 
  with 
  a 
  rounded 
  eminence, 
  succeeded 
  by 
  a 
  lower 
  one, 
  then 
  

   running 
  across 
  metathorax 
  and 
  abdominal 
  segments 
  in 
  line 
  of 
  tubercles, 
  

   and 
  ending 
  with 
  the 
  tubercles 
  on 
  the 
  3rd 
  abdominal 
  segment. 
  It 
  is 
  

   not 
  high 
  and 
  marked, 
  as 
  it 
  is 
  in 
  some 
  "plume" 
  pupaB, 
  but 
  is 
  quite 
  

   definite 
  and 
  distinct, 
  the 
  tubercles 
  on 
  the 
  following 
  abdominal 
  segments 
  

   (4th, 
  etc.) 
  are 
  in 
  line 
  with 
  it, 
  but 
  represented 
  only 
  in 
  the 
  middle 
  of 
  

   each 
  segment, 
  there 
  being 
  no 
  continuous 
  ridge 
  between 
  them. 
  The 
  

   hairs 
  on 
  the 
  mesothorax 
  are, 
  on 
  either 
  side, 
  two 
  in 
  line 
  of 
  the 
  dorsal 
  

   ridge 
  but 
  in 
  front 
  of 
  it, 
  and 
  about 
  the 
  distance 
  apart 
  that 
  the 
  last 
  one 
  

   is 
  from 
  the 
  initial 
  hump 
  of 
  the 
  ridge; 
  outside 
  each 
  of 
  these 
  is 
  again 
  

   another 
  hair 
  ; 
  all 
  equally 
  spaced, 
  so 
  that 
  there 
  are 
  two 
  rows 
  of 
  four 
  

   hairs 
  across 
  mesothorax 
  in 
  front 
  of 
  anterior 
  end 
  of 
  ridge. 
  The 
  

   prothorax 
  has 
  a 
  row 
  of 
  six 
  hairs 
  across 
  it, 
  three 
  on 
  either 
  side, 
  and 
  one 
  

   or 
  two 
  of 
  the 
  head 
  (antenna-basal 
  ?) 
  hairs 
  come 
  into 
  this 
  same 
  dorsal 
  

   view. 
  These 
  hairs 
  are 
  all 
  colourless, 
  and 
  about 
  0*7mm. 
  or 
  0*8mm. 
  long 
  

   (two-thirds 
  thickness 
  of 
  pupa). 
  On 
  the 
  head 
  are, 
  in 
  front 
  abo\e, 
  two 
  

   hairs 
  on 
  each 
  side, 
  and 
  one 
  on 
  each 
  side 
  below, 
  above 
  the 
  labrum. 
  

   These 
  are 
  0'3mm.-0'4mm. 
  long, 
  colourless. 
  On 
  the 
  metathorax 
  are 
  

   two 
  hairs, 
  one 
  on 
  either 
  side, 
  white, 
  about 
  0'6mm. 
  long, 
  porrected 
  and 
  

   arising, 
  at 
  front 
  margin 
  of 
  segment, 
  from 
  the 
  ridge. 
  They 
  appear 
  to 
  

   correspond 
  with 
  the 
  first 
  of 
  the 
  two 
  hairs 
  in 
  the 
  following 
  abdominal 
  

   segments, 
  which 
  have 
  the 
  same 
  appearance, 
  nearly 
  the 
  same 
  length 
  

   and 
  direction 
  (porrected), 
  but 
  arise 
  further 
  back 
  on 
  the 
  segment. 
  The 
  

   metathorax 
  has 
  no 
  posterior 
  hair, 
  as 
  the 
  other 
  segments 
  have. 
  The 
  1st, 
  2nd, 
  

   3rd, 
  and 
  4th, 
  abdominal 
  segments 
  have 
  each 
  two 
  hairs 
  on 
  either 
  side, 
  

   apparently 
  i 
  and 
  ii, 
  not 
  arising 
  very 
  close 
  together, 
  but 
  still 
  on 
  a 
  common 
  

   eminence, 
  which, 
  on 
  the 
  1st, 
  2nd, 
  and 
  3rd, 
  abdominal 
  segments, 
  

   is 
  part 
  of 
  the 
  dorsal 
  ridge, 
  the 
  hairs 
  are 
  at 
  an 
  angle 
  to 
  each 
  other 
  of 
  

   about 
  90°, 
  the 
  first 
  directed 
  forward, 
  the 
  latter 
  backwards, 
  and 
  increasing 
  

   the 
  angle 
  by 
  a 
  little 
  curvature; 
  the 
  posterior 
  one 
  is 
  black, 
  quite 
  0*6mm. 
  

   long, 
  whilst 
  the 
  front 
  one 
  is 
  shorter 
  on 
  each 
  segment 
  up 
  to 
  the 
  4th 
  

   abdominal 
  segment. 
  On 
  the 
  5th 
  abdominal 
  segment, 
  and 
  beyond, 
  

   there 
  is 
  only 
  the 
  posterior 
  one, 
  on 
  to 
  the 
  9th 
  abdominal 
  segment, 
  where 
  

   it 
  is 
  at 
  posterior 
  margin 
  of 
  segment. 
  It 
  has 
  about 
  the 
  same 
  length 
  

   (0-6mm.) 
  on 
  each 
  segment. 
  On 
  these 
  segments 
  is 
  a 
  little 
  eminence 
  and 
  

   scar, 
  suggesting 
  where 
  the 
  missing 
  tubercle 
  i 
  would 
  have 
  been. 
  On 
  the 
  

   front 
  outer 
  angle 
  of 
  metathorax 
  are 
  two 
  minute 
  black 
  dots. 
  On 
  the 
  

  

  