﻿76 
  Mr. 
  J. 
  W. 
  Douglas's 
  Contributions 
  towards 
  the 
  

  

  yellow 
  larva 
  with 
  pink 
  stripes, 
  which 
  devours 
  them 
  from 
  within 
  : 
  

   later 
  in 
  the 
  season, 
  towards 
  the 
  middle 
  of 
  April, 
  we 
  may 
  notice 
  

   the 
  flower 
  shoots 
  drawn 
  together 
  in 
  the 
  same 
  way, 
  and 
  on 
  opening 
  

   tliem 
  we 
  generally 
  find 
  that 
  the 
  young 
  buds 
  have 
  all 
  been 
  de- 
  

   voured, 
  and 
  the 
  excrements 
  of 
  the 
  voracious 
  larva 
  left 
  in 
  their 
  

   place. 
  All 
  this 
  is 
  by 
  G. 
  contigua. 
  

  

  If 
  we 
  examine 
  the 
  same 
  plant 
  early 
  in 
  May 
  we 
  shall 
  again 
  find 
  

   the 
  young 
  shoots 
  drawn 
  together, 
  but 
  no 
  longer 
  by 
  the 
  same 
  larva. 
  

   We 
  now 
  meet 
  with 
  a 
  pale 
  greenish-yellow 
  larva, 
  without 
  any 
  pink 
  

   stripes 
  : 
  and 
  later, 
  when 
  the 
  seeds 
  are 
  nearly 
  ripe, 
  we 
  find, 
  on 
  

   opening 
  the 
  capsules, 
  that 
  many 
  of 
  them 
  contain 
  the 
  same 
  greenish- 
  

   yellow 
  larva, 
  nearly 
  full 
  fed. 
  This 
  is 
  G. 
  hlandella. 
  The 
  S. 
  holostea 
  

   has 
  thus 
  its 
  young 
  shoots 
  devoured 
  by 
  two 
  enemies, 
  one 
  of 
  which 
  

   afterwards 
  leaves 
  them 
  for 
  the 
  flower 
  buds, 
  while 
  the 
  other 
  takes 
  

   to 
  the 
  seeds. 
  

  

  At 
  the 
  beginning 
  of 
  April, 
  if 
  we 
  bring 
  our 
  eyes 
  near 
  the 
  ground 
  

   in 
  places 
  where 
  Stellaria 
  ulig'inosa 
  grows, 
  and 
  push 
  aside 
  the 
  grass 
  

   or 
  withered 
  leaves 
  that 
  may 
  cover 
  it, 
  we 
  shall 
  find 
  the 
  young 
  

   shoots, 
  many 
  of 
  them 
  hardly 
  an 
  inch 
  above 
  the 
  ground, 
  but 
  

   instead 
  of 
  being 
  of 
  a 
  regular 
  form 
  as 
  healthy 
  shoots 
  should 
  be, 
  

   they 
  are 
  knobbed 
  and 
  twisted 
  in 
  a 
  very 
  singular 
  way 
  : 
  each 
  of 
  them 
  

   contains 
  a 
  dirty 
  brown 
  Lepidopterous 
  larva. 
  It 
  may 
  seem 
  incredible 
  

   that 
  this 
  should 
  be 
  the 
  larva 
  of 
  so 
  scarce 
  a 
  species 
  as 
  G.frater- 
  

   nella, 
  for 
  a 
  glance 
  around 
  will 
  show 
  us 
  it 
  is 
  evidently 
  no 
  rarity, 
  

   but 
  it 
  is 
  the 
  habit 
  of 
  the 
  perfect 
  insect 
  to 
  keep 
  very 
  quiet, 
  and 
  

   hence 
  it 
  is 
  rarely 
  seen; 
  whereas, 
  judging 
  from 
  the 
  abundance 
  of 
  

   contorted 
  shoots 
  of 
  the 
  -S". 
  uliginosa, 
  there 
  are 
  few 
  insects 
  more 
  

   plentiful. 
  

  

  Gekchia 
  contigua, 
  Hawnrth, 
  Douglas. 
  (Trans. 
  Ent. 
  Soc. 
  Vol. 
  V. 
  

   p 
  190.) 
  

   Larva 
  (PI. 
  X. 
  fig. 
  1). 
  — 
  Length 
  4 
  lines. 
  — 
  Robust; 
  pale 
  dull 
  

   whitish, 
  with 
  a 
  greenish 
  -yellow 
  tinge, 
  and 
  with 
  many 
  short 
  hairs 
  

   placed 
  in 
  rows. 
  Head 
  black, 
  second 
  segment 
  black 
  above, 
  with 
  

   a 
  slight 
  pinky 
  line 
  in 
  the 
  centre 
  ; 
  a 
  pink 
  stripe 
  down 
  the 
  centre 
  of 
  

   the 
  back, 
  on 
  each 
  side 
  of 
  which 
  are 
  two 
  other 
  stripes 
  of 
  the 
  same 
  

   colour, 
  that 
  nearest 
  the 
  centre 
  being 
  broader 
  than 
  the 
  other 
  and 
  

   wavy 
  ; 
  a 
  still 
  slenderer 
  line 
  of 
  the 
  same 
  colour 
  just 
  above 
  the 
  legs. 
  

   On 
  the 
  top 
  of 
  each 
  segment 
  after 
  the 
  second 
  are 
  four 
  small 
  black 
  

   dots, 
  the 
  two 
  anterior 
  ones, 
  on 
  the 
  central 
  segments, 
  being 
  nearer 
  

   to 
  the 
  dorsal 
  stripe 
  than 
  the 
  two 
  posterior 
  ; 
  a 
  row 
  of 
  black 
  dots 
  

   on 
  the 
  side 
  between 
  the 
  second 
  and 
  third 
  pink 
  stripes, 
  and 
  another 
  

   row 
  above 
  the 
  legs, 
  one 
  dot 
  being 
  on 
  each 
  segment 
  : 
  on 
  the 
  third, 
  

  

  