﻿GILLMERIA 
  OCHEODACTYLA. 
  

  

  dactyla, 
  are 
  distinct 
  enough, 
  but 
  of 
  a 
  dull 
  creamy 
  colour, 
  and 
  the 
  lower 
  

   one 
  (marginal) 
  would 
  hardly 
  be 
  noticed, 
  if 
  one 
  did 
  not 
  look 
  for 
  it 
  to 
  

   compare 
  with 
  that 
  of 
  G. 
  pallidactyla; 
  the 
  subdorsal 
  and 
  supraspiracular 
  

   pale 
  bands 
  are 
  duller 
  and 
  are 
  patchy, 
  the 
  dorsal 
  dark 
  line 
  especially 
  

   invading 
  their 
  area, 
  and 
  giving, 
  perhaps, 
  more 
  nearly 
  the 
  aspect 
  of 
  what 
  

   they 
  are, 
  viz., 
  white 
  patches 
  round 
  i 
  and 
  ii. 
  The 
  ground 
  colour 
  of 
  G. 
  

   pallidactyla 
  is 
  definitely 
  pale 
  olive-green 
  and 
  white 
  ; 
  that 
  of 
  G. 
  ochro- 
  

   dactyla 
  is 
  a 
  pinky-green 
  with 
  pale, 
  nearly 
  white, 
  markings. 
  All 
  the 
  

   G. 
  ochrodactyla 
  are 
  more 
  or 
  less 
  pink, 
  of 
  which 
  no 
  trace 
  is 
  seen 
  in 
  any 
  

   of 
  the 
  G. 
  pallidactyla. 
  One 
  specimen 
  is 
  especially 
  pink, 
  having 
  broad 
  

   patches 
  of 
  pink 
  beside 
  the 
  dorsal 
  line, 
  extending 
  far 
  across 
  the 
  posterior 
  

   margin 
  of 
  the 
  segments, 
  and 
  on 
  the 
  6th 
  and 
  7th 
  abdominal 
  segments 
  reach- 
  

   ing 
  the 
  subdorsal 
  line, 
  which 
  is 
  pink 
  also. 
  On 
  this 
  specimen,one 
  may,in 
  fact, 
  

   distinguish 
  at 
  least 
  four 
  tints 
  : 
  — 
  (1) 
  The 
  white 
  areas 
  which 
  are 
  not 
  so 
  clear 
  

   white 
  as 
  in 
  G. 
  pallidactyla. 
  (2) 
  A 
  pale 
  fuscous-brown, 
  the 
  dorsal 
  line 
  and 
  

   patches 
  of 
  the 
  spiracular 
  band— 
  the 
  spiracles 
  themselves 
  being 
  dark, 
  

   surrounded 
  by 
  a 
  white 
  ring 
  — 
  the 
  lower 
  margin 
  immediately 
  below 
  the 
  

   white 
  lateral 
  line. 
  (3) 
  Pink, 
  large 
  patches 
  beside 
  the 
  dorsal 
  line 
  

   invading 
  the 
  subdorsal 
  pale 
  band, 
  the 
  subdorsal 
  dark 
  line 
  also 
  break- 
  

   ing 
  across 
  the 
  next 
  pale 
  line, 
  in 
  three 
  places, 
  viz., 
  anterior 
  and 
  posterior 
  

   margins 
  of 
  segment, 
  and 
  along 
  a 
  subsegmental 
  division 
  which 
  is 
  rather 
  

   behind 
  the 
  middle 
  of 
  segment. 
  (4) 
  The 
  under 
  surface 
  is 
  very 
  pale, 
  but 
  far 
  

   from 
  white 
  — 
  faintly 
  fuscous 
  may 
  be 
  the 
  right 
  description. 
  It 
  is 
  difficult 
  

   to 
  detect 
  any 
  exact 
  structural 
  differences 
  between 
  the 
  living 
  larvse 
  of 
  these 
  

   species. 
  That 
  of 
  G. 
  pallidactyla 
  has 
  the 
  areas 
  of 
  dark 
  hairs 
  and 
  points 
  

   larger 
  than 
  those 
  on 
  that 
  of 
  G. 
  ochrodactyla, 
  but 
  there 
  is 
  some 
  individual 
  

   variation, 
  and 
  I 
  cannot 
  be 
  positive 
  that 
  the 
  differences 
  that 
  hold 
  good 
  in 
  

   the 
  three 
  specimens 
  of 
  each 
  that 
  I 
  have 
  carefully 
  examined, 
  would 
  be 
  

   found 
  to 
  obtain 
  in 
  all 
  cases. 
  The 
  dorsal 
  band 
  is 
  narrower 
  in 
  G. 
  ochro- 
  

   dactyla 
  than 
  in 
  G. 
  pallidactyla, 
  the 
  portion 
  between 
  ii 
  and 
  iii, 
  which 
  is 
  

   almost 
  a 
  good 
  continuous 
  line 
  in 
  G 
  . 
  pallidactyla, 
  may 
  be 
  represented 
  by 
  two 
  

   scraps, 
  or 
  by 
  one, 
  or 
  be 
  practically 
  absent. 
  The 
  large 
  portion 
  round 
  

   the 
  spiracle, 
  forming 
  a 
  lateral 
  dark 
  band, 
  is 
  smaller 
  in 
  G. 
  oclirodactyla 
  

   than 
  in 
  G. 
  pallidactyla. 
  The 
  band 
  between 
  iv 
  and 
  vi 
  is 
  much 
  smaller, 
  

   and 
  is 
  broken 
  up 
  by 
  pale 
  intrusions, 
  that 
  between 
  vi 
  and 
  vii 
  is 
  xery 
  

   small 
  in 
  two 
  specimens 
  — 
  wanting 
  in 
  one. 
  The 
  patch 
  round 
  the 
  base 
  of 
  

   the 
  prolegs 
  is 
  absent 
  in 
  G. 
  ochrodactyla. 
  always 
  present 
  in 
  G. 
  pallidactyla. 
  

   In 
  one 
  of 
  the 
  G. 
  pallidactyla, 
  the 
  dark 
  predominates 
  largely, 
  but 
  the 
  

   pale 
  lines 
  indicated 
  above 
  are 
  all 
  present, 
  although 
  very 
  much 
  narrowed. 
  

   As 
  to 
  the 
  meso- 
  and 
  metathoracic 
  setae, 
  in 
  G. 
  pallidactyla 
  the 
  eight 
  

   hairs 
  (four 
  pairs 
  of 
  two 
  each) 
  on 
  each 
  side, 
  are 
  all 
  quite 
  separate 
  

   and 
  without 
  basal 
  plates, 
  and, 
  though 
  still 
  in 
  pairs, 
  the 
  members 
  

   of 
  each 
  pair 
  are 
  wider 
  apart, 
  and 
  the 
  distance 
  between 
  the 
  pail's 
  

   is 
  less. 
  Accepting 
  the 
  hairs 
  as 
  i, 
  ii, 
  iii, 
  etc., 
  then 
  i 
  and 
  ii 
  are 
  

   even 
  less 
  trapezoidal 
  than 
  in 
  the 
  larva 
  of 
  PlatypUlia 
  gonodactyla 
  

   though, 
  in 
  all, 
  i 
  and 
  ii 
  are 
  almost 
  exactly 
  transverse, 
  but, 
  if 
  the 
  

   distance 
  from 
  i 
  to 
  ii 
  be 
  taken 
  as 
  1, 
  then 
  ii 
  to 
  iii 
  is 
  little 
  more 
  than 
  1*5 
  ; 
  

   whilst 
  in 
  P. 
  gonodactyla, 
  if 
  i 
  to 
  ii=l, 
  then 
  ii 
  to 
  iii 
  =8. 
  In 
  (/'. 
  ochro- 
  

   dactyla, 
  the 
  condition 
  is 
  nearly 
  that 
  of 
  G, 
  pallidactyla, 
  but 
  each 
  

   hair 
  has 
  a 
  basal 
  plate, 
  colourless 
  and 
  transparent 
  (smaller 
  than 
  

   in 
  P. 
  gonodactyla), 
  and, 
  owing 
  to 
  the 
  hairs 
  being 
  farther 
  apart, 
  

   the 
  plates 
  do 
  not 
  touch, 
  but 
  are 
  separated 
  by 
  skin-point-lvaring 
  

   integument. 
  This 
  does 
  not 
  hold, 
  however, 
  in 
  regard 
  to 
  the 
  third 
  pair 
  

  

  