﻿GILLMERIA 
  OCHRODAOTYLA. 
  227 
  

  

  1850, 
  at 
  Chudleigh 
  (Stainton) 
  ; 
  third 
  week 
  in 
  June, 
  1860, 
  at 
  Scar- 
  

   borough 
  (Jeffrey) 
  ; 
  June 
  4th, 
  1874, 
  June 
  5th, 
  1875, 
  at 
  Coniscliffe, 
  of 
  

   varying 
  size; 
  June 
  10th, 
  1880, 
  at 
  Blackwell, 
  quite 
  small 
  (Sang); 
  June 
  

   18th, 
  1893, 
  at 
  Chester-le- 
  Street 
  (Bower) 
  ; 
  May 
  22nd, 
  1904, 
  between 
  

   Aylesford 
  and 
  Maidstone 
  (Ovenden); 
  June 
  11th, 
  1904, 
  in 
  the 
  Durham 
  

   district 
  (Gardner). 
  

  

  Larva. 
  — 
  While 
  immature, 
  the 
  larva 
  is 
  darker 
  in 
  its 
  colouring 
  than 
  

   it 
  afterwards 
  becomes. 
  When 
  not 
  more 
  than 
  a 
  quarter 
  of 
  an 
  inch 
  long 
  

   it 
  is 
  blackish-green 
  ; 
  when 
  about 
  three-eighths 
  of 
  an 
  inch 
  long 
  it 
  is 
  

   glaucous-green 
  with 
  grey 
  stripes 
  ; 
  when 
  fullgrown 
  the 
  larva 
  measures 
  

   a 
  little 
  more 
  than 
  ^in., 
  its 
  figure 
  moderately 
  slender, 
  cylindrical, 
  and 
  

   tapering 
  a 
  little 
  from 
  the 
  3rd 
  segment 
  to 
  the 
  head, 
  which 
  is 
  rather 
  

   rounded 
  ; 
  it 
  tapers 
  also 
  from 
  the 
  11th 
  segment 
  to 
  the 
  end 
  of 
  the 
  13th 
  ; 
  the 
  

   segmental 
  divisions 
  are 
  well 
  defined 
  on 
  the 
  back, 
  and 
  rather 
  deeper 
  on 
  

   the 
  belly 
  ; 
  the 
  legs 
  all 
  tolerably 
  well 
  developed. 
  The 
  colour 
  of 
  the 
  

   head 
  is 
  very 
  pale, 
  either 
  of 
  a 
  brownish-yellow 
  or 
  greyish-yellow, 
  semi- 
  

   pellucid 
  and 
  shining; 
  the 
  ocelli 
  large 
  and 
  blackish 
  ; 
  the 
  mouth 
  blackish- 
  

   brown; 
  on 
  the 
  2nd 
  segment 
  (prothorax) 
  is 
  a 
  shining 
  plate 
  of 
  the 
  same 
  colour 
  

   as 
  the 
  head, 
  bearing 
  minute 
  blackish 
  dots, 
  and 
  another 
  plate 
  of 
  similar 
  

   tint 
  is 
  on 
  the 
  anal 
  tip 
  ; 
  the 
  rest 
  of 
  the 
  back 
  is 
  either 
  a 
  lively 
  green, 
  or 
  

   else 
  a 
  rather 
  subdued 
  transparent 
  light 
  green, 
  bearing 
  a 
  dark 
  olive- 
  

   brownish 
  pubescent 
  or 
  bristly 
  dorsal 
  line 
  ; 
  a 
  naked 
  stripe 
  of 
  opaque 
  

   greyish, 
  or 
  whitish-grey, 
  follows 
  at 
  a 
  short 
  interval, 
  on 
  which 
  the 
  

   minute 
  tubercular 
  black 
  dots 
  are 
  visible 
  ; 
  then 
  comes 
  the 
  subdorsal 
  

   thinner 
  stripe 
  of 
  the 
  transparent 
  greenish 
  ground 
  colour, 
  and 
  then 
  

   another 
  naked 
  thin 
  stripe 
  of 
  greyish, 
  which 
  is 
  succeeded 
  by 
  a 
  broad 
  

   lateral 
  band 
  of 
  the 
  ground 
  colour, 
  but 
  so 
  thickly 
  covered 
  by 
  a 
  minute 
  

   bristly 
  kind 
  of 
  brown 
  pubescence 
  as 
  to 
  assume 
  an 
  olive 
  hue, 
  and 
  just 
  

   within 
  its 
  lower 
  margin 
  are 
  the 
  circular 
  brownish 
  -red 
  spiracles, 
  outlined 
  

   with 
  black, 
  and 
  surrounded 
  by 
  a 
  ring 
  of 
  naked 
  ground 
  ; 
  beneath 
  

   them 
  runs 
  an 
  inflated 
  and 
  puckered 
  stripe 
  of 
  opaque 
  greyish-white, 
  

   relieved 
  below 
  by 
  a 
  line 
  of 
  the 
  brown 
  pubescence 
  ; 
  the 
  belly 
  and 
  all 
  

   the 
  legs 
  are 
  of 
  the 
  pale 
  greenish 
  ground 
  colour, 
  and 
  but 
  very 
  slightly 
  

   pubescent; 
  on 
  the 
  belly, 
  between 
  each 
  pair 
  of 
  the 
  anterior 
  legs, 
  at 
  their 
  

   base, 
  are 
  two 
  black 
  spots; 
  the 
  ventral 
  legs 
  tipped 
  with 
  dark 
  brown 
  

   (Buckler). 
  The 
  dull 
  whitish-green 
  larvae 
  have 
  the 
  usual 
  lines 
  con- 
  

   spicuously 
  darker, 
  and, 
  when 
  more 
  mature, 
  obtain 
  a 
  pink 
  tinge 
  (Jeffrey). 
  

   Length 
  8 
  lines, 
  slightly 
  attenuated 
  posteriorly. 
  Head 
  yellowish-green, 
  

   with 
  brownish 
  mandibles, 
  and 
  a 
  black 
  spot 
  on 
  each 
  cheek. 
  Ground 
  

   colour 
  green; 
  dorsal 
  stripe 
  whitish, 
  broken 
  at 
  the 
  segmental 
  divisions 
  ; 
  

   a 
  median 
  line 
  of 
  the 
  ground 
  colour 
  is 
  intersected 
  by 
  the 
  darker 
  alimen- 
  

   tary 
  canal 
  ; 
  subdorsal 
  and 
  spiracular 
  lines 
  whitish, 
  interrupted 
  at 
  the 
  

   segmental 
  divisions. 
  Tubercles 
  inconspicuous 
  ; 
  dorsal, 
  two 
  rows 
  (four 
  

   on 
  each 
  segment), 
  blackish, 
  each 
  emitting 
  a 
  single, 
  short, 
  whitish 
  hair; 
  

   subdorsal, 
  a 
  row 
  of 
  black 
  warts, 
  each 
  with 
  a 
  single 
  short 
  white 
  hair 
  ; 
  

   numerous 
  minute 
  whitish 
  bristles 
  all 
  over 
  the 
  body. 
  The 
  spiracles 
  

   are 
  dark 
  brown 
  with 
  yellowish 
  centres 
  ; 
  anal 
  segment 
  kinged 
  with 
  

   yellowish 
  and 
  shining. 
  Prolegs 
  and 
  anal 
  claspers 
  semi-transparent, 
  

   with 
  a 
  greenish 
  tinge 
  and 
  tipped 
  with 
  brown 
  (South). 
  

  

  Variation 
  of 
  larva 
  of 
  Gillmkkia 
  ochrodaotyla, 
  — 
  The 
  larva, 
  like 
  

   that 
  of 
  (t. 
  pallidactyla, 
  has 
  two 
  distinct 
  colour 
  forms 
  in 
  its 
  later 
  stages: 
  

   (1) 
  A 
  brownish 
  form. 
  (2) 
  A 
  green 
  form. 
  I 
  am 
  not 
  certain 
  whether 
  

   these 
  belong 
  to 
  the 
  penultimate 
  and 
  final 
  instars 
  respectively, 
  as 
  they 
  

  

  