﻿208 
  Mr. 
  J. 
  W. 
  Douglas's 
  Contributions 
  to 
  the 
  

  

  For 
  a 
  long 
  time 
  the 
  typical 
  specimen 
  taken 
  by 
  Mr. 
  Bedell 
  was 
  

   the 
  only 
  English 
  example 
  known, 
  but 
  on 
  the 
  5th 
  of 
  August 
  last 
  

   year, 
  in 
  the 
  lane 
  from 
  Greenhithe 
  to 
  Darent 
  Wood, 
  I 
  found 
  

   four 
  caterpillars 
  mining 
  leaves 
  of 
  Convolvulus 
  arvensis, 
  and 
  the 
  

   next 
  day 
  at 
  Lee 
  I 
  discovered 
  a 
  considerable 
  number. 
  Four-fifths 
  

   of 
  these 
  produced 
  only 
  Ichneumons, 
  but 
  from 
  the 
  others 
  I 
  reared 
  

   the 
  moth. 
  Mr. 
  Stainton 
  and 
  I 
  had 
  repeatedly, 
  but 
  in 
  vain, 
  

   searched 
  the 
  leaves 
  of 
  Convolvulus 
  Sepium 
  for 
  a 
  miner, 
  which 
  Mr. 
  

   R. 
  C. 
  R. 
  Jordan 
  informed 
  us 
  he 
  once 
  found 
  on 
  that 
  plant 
  in 
  De- 
  

   vonshire, 
  and 
  from 
  which 
  he 
  had 
  bred 
  a 
  moth. 
  We 
  had 
  concluded 
  

   there 
  was 
  some 
  mistake, 
  and 
  we 
  now 
  thought 
  this 
  was 
  the 
  insect, 
  

   and 
  that 
  we 
  had 
  been 
  told 
  the 
  wrong 
  specific 
  name 
  of 
  the 
  plant 
  ; 
  

   but 
  in 
  September 
  last 
  Mr. 
  Stainton, 
  when 
  in 
  Devon, 
  found 
  that 
  

   the 
  larva 
  of 
  this 
  species 
  did 
  there, 
  though 
  but 
  rarely, 
  feed 
  on 
  C. 
  

   Sepium. 
  Mr. 
  Jordan 
  unfortunately 
  lost 
  sight 
  of 
  the 
  moths 
  he 
  had 
  

   reared, 
  or 
  this 
  very 
  interesting 
  addition 
  to 
  our 
  knowledge 
  might 
  

   long 
  ago 
  have 
  been 
  less 
  of 
  a 
  stranger 
  to 
  us. 
  

  

  Bedellla 
  somnulentella, 
  Zell 
  

  

  er. 
  

  

  Larva 
  (fig. 
  1 
  a). 
  Length 
  4| 
  lines. 
  Pale 
  green. 
  Head 
  small, 
  

   with 
  a 
  narrow 
  V 
  shaped 
  mark 
  in 
  the 
  centre, 
  and 
  a 
  dark 
  mark 
  

   on 
  the 
  margin. 
  Down 
  the 
  centre 
  of 
  the 
  back 
  a 
  purplish 
  line, 
  on 
  

   each 
  side 
  of 
  which 
  is 
  a 
  row 
  of 
  purple 
  spots 
  with 
  a 
  white 
  pupil, 
  

   from 
  which 
  proceeds 
  a 
  hair 
  ; 
  one 
  of 
  these 
  spots 
  is 
  on 
  each 
  seg- 
  

   ment, 
  and 
  they 
  are 
  connected 
  by 
  a 
  slight 
  suffusion 
  of 
  purple. 
  A 
  

   second 
  row 
  of 
  purple 
  spots 
  is 
  just 
  above 
  the 
  legs 
  ; 
  the 
  posterior 
  

   segments 
  tapering. 
  

  

  Six 
  pectoral, 
  eight 
  ventral 
  and 
  two 
  anal 
  legs, 
  green. 
  

  

  Mines 
  in 
  leaves 
  of 
  Convolvulus 
  arvensis, 
  rarely 
  in 
  those 
  of 
  C. 
  

   Sepium, 
  forming 
  white 
  blotches 
  (fig. 
  1 
  b). 
  The 
  tenements 
  are 
  

   kept 
  quite 
  clean, 
  all 
  the 
  excrement 
  being 
  protruded. 
  The 
  larva 
  

   passes 
  all 
  its 
  life 
  under 
  cover, 
  except 
  during 
  the 
  short 
  intervals 
  

   when 
  it 
  has 
  left 
  one 
  leaf, 
  and 
  is 
  seeking 
  another 
  in 
  which 
  to 
  bury 
  

   itself. 
  At 
  such 
  times, 
  or 
  by 
  violently 
  breaking 
  open 
  its 
  dwelling, 
  

   may 
  be 
  observed 
  the 
  peculiar 
  method 
  of 
  progression, 
  which 
  some- 
  

   what 
  resembles 
  that 
  of 
  the 
  Geometridce 
  (fig. 
  1 
  c). 
  

  

  Found 
  from 
  5th 
  to 
  IGth 
  August, 
  and 
  from 
  15th 
  to 
  24th 
  Sep- 
  

   tember, 
  there 
  being 
  two 
  consecutive 
  broods. 
  

  

  Pupa 
  (fig. 
  1 
  d). 
  Length 
  S\ 
  lines. 
  Pointed 
  at 
  both 
  ends, 
  broad 
  

   at 
  the 
  thorax, 
  abruptly 
  narrower, 
  but 
  very 
  much 
  elongated 
  ante- 
  

   riorly, 
  gradually 
  tapering 
  posteriorly. 
  The 
  general 
  form 
  is 
  very 
  

   like 
  that 
  of 
  the 
  pupa 
  of 
  a 
  Pontia; 
  when 
  laid 
  upon 
  its 
  back 
  the 
  

  

  