﻿EUCNEMIDOPHORUS 
  RHODODACTYLA. 
  261 
  

  

  segment, 
  about 
  0'6mm. 
  long; 
  vii 
  carries 
  a 
  posterior 
  hair 
  about 
  03mm. 
  

   and 
  two 
  in 
  front 
  about 
  0*2mm. 
  long; 
  these 
  appear 
  to 
  have 
  skin-points 
  

   between 
  their 
  bases 
  ; 
  on 
  the 
  8th 
  abdominal, 
  vii 
  has 
  only 
  two 
  hairs, 
  

   with 
  a 
  ventral 
  hair 
  below, 
  which 
  also 
  occurs 
  on 
  all 
  the 
  other 
  abdominal 
  

   segments 
  in 
  front 
  ; 
  the 
  9th 
  abdominal 
  has 
  three 
  pairs 
  of 
  hairs, 
  each 
  

   pair 
  on 
  a 
  common 
  base, 
  and 
  trapezoidally 
  arranged 
  ; 
  below 
  them 
  a 
  

   single 
  strong 
  hair, 
  and 
  the 
  usual 
  weak 
  ventral 
  one. 
  It 
  is 
  not 
  easy 
  to 
  

   homologise 
  these 
  hairs 
  on 
  the 
  9th 
  abdominal 
  ; 
  the 
  first 
  pair 
  are 
  like 
  i 
  

   and 
  ii; 
  the 
  second 
  is 
  iii 
  (the 
  second 
  hair 
  of 
  this 
  pair 
  may 
  be 
  the 
  

   minute 
  accessory 
  spiracular) 
  ; 
  the 
  third 
  is 
  in 
  line 
  with 
  iv 
  and 
  v 
  ; 
  if 
  

   the 
  solitary 
  hair 
  is 
  vi, 
  then 
  vii 
  is 
  absent. 
  The 
  anal 
  plate 
  carries 
  seven 
  

   hairs 
  on 
  either 
  side. 
  All 
  these 
  hairs 
  are 
  quite 
  smooth 
  and 
  unspiculated, 
  

   but 
  most 
  of 
  them 
  are 
  slightly 
  swollen 
  at 
  the 
  tips. 
  The 
  secondary 
  hairs 
  

   are 
  very 
  numerous, 
  about 
  40 
  on 
  an 
  abdominal 
  segment 
  from 
  dorsum 
  to 
  

   spiracle. 
  They 
  vary 
  much 
  in 
  size, 
  the 
  mass 
  are, 
  perhaps, 
  about 
  O'lmm. 
  

   long, 
  but 
  some 
  are 
  not 
  much 
  over 
  0*05mm., 
  and 
  a 
  few 
  reach 
  to 
  nearly 
  

   0-25mm. 
  ; 
  all 
  are 
  of 
  similar 
  structure, 
  nearly 
  as 
  thick 
  as 
  the 
  primary 
  

   hairs 
  are, 
  i.e., 
  proportionally 
  very 
  thick, 
  tapering 
  a 
  little, 
  and 
  then 
  

   swelling 
  out 
  again 
  apically, 
  with 
  a 
  truncate, 
  sometimes 
  slightly 
  notched, 
  

   end, 
  sharply 
  demarcated 
  from 
  the 
  skin 
  at 
  their 
  bases, 
  but 
  without 
  any 
  

   separate 
  chitinous 
  plate 
  ; 
  the 
  larger 
  examples 
  are 
  rather 
  solitary, 
  

   behind 
  the 
  spiracle, 
  in 
  attendance 
  on 
  tubercles 
  i, 
  ii, 
  iii, 
  etc., 
  but 
  equally 
  

   missing 
  from 
  these 
  positions, 
  so 
  that 
  no 
  definite 
  and 
  constant 
  positions 
  

   can 
  be 
  assigned 
  them. 
  The 
  skin-points 
  are 
  small, 
  sharp, 
  with 
  their 
  

   longest 
  diameter 
  usually 
  longitudinally 
  placed. 
  This 
  implies, 
  as 
  is 
  the 
  

   fact, 
  that 
  they 
  are 
  really 
  two-and-a-half 
  times 
  as 
  long 
  as 
  broad. 
  The 
  true 
  

   legs 
  are 
  black 
  in 
  one 
  specimen, 
  yellow 
  in 
  another. 
  The 
  prolegs 
  on 
  long 
  

   props, 
  hooks 
  of 
  prolegs 
  about 
  16, 
  of 
  anal 
  claspers, 
  20 
  (Chapman, 
  June 
  5th, 
  

   1905). 
  Length 
  about 
  -5in., 
  and 
  of 
  tolerable 
  bulk 
  in 
  proportion 
  ; 
  the 
  body 
  

   cylindrical, 
  and 
  strongly 
  attenuated 
  towards 
  the 
  extremities, 
  is 
  consider- 
  

   ably 
  retractile, 
  and, 
  when 
  at 
  rest, 
  has 
  a 
  dumpy 
  appearance 
  ; 
  the 
  head 
  is 
  

   small, 
  globular, 
  smooth 
  and 
  shining, 
  about 
  the 
  same 
  width 
  as, 
  or 
  perhaps 
  

   very 
  slightly 
  narrower 
  than, 
  the 
  2nd 
  segment 
  ; 
  the 
  segmental 
  divisions 
  

   distinctly 
  marked; 
  the 
  skin 
  soft, 
  but 
  with 
  a 
  slightly 
  rough 
  appearance, 
  

   and 
  is 
  sparingly, 
  though 
  conspicuously, 
  clothed 
  with 
  short 
  hairs. 
  The 
  

   ground 
  colour 
  is 
  a 
  rather 
  bright 
  greenish 
  -yellow, 
  in 
  some 
  specimens 
  

   yellowish-green; 
  the 
  head 
  is 
  greyish, 
  with 
  the 
  cheeks 
  and 
  mandibles 
  

   shining 
  black. 
  A 
  very 
  conspicuous 
  purple 
  stripe 
  forms 
  the 
  mediodorsal 
  

   line 
  ; 
  from 
  the 
  2nd 
  to 
  the 
  6th 
  segment, 
  this 
  stripe 
  appears 
  as 
  if 
  

   composed 
  of 
  round 
  purplish 
  marks 
  joined 
  at 
  the 
  segmental 
  divisions, 
  

   consequently, 
  the 
  stripe 
  is 
  rather 
  broad 
  ; 
  on 
  the 
  remaining 
  segments, 
  

   it 
  is 
  much 
  narrower 
  and 
  more 
  uniform, 
  but 
  equally 
  distinct 
  ; 
  the 
  

   subdorsal 
  and 
  spiracular 
  lines 
  are 
  yellow, 
  but 
  only 
  faintly 
  indicated, 
  

   the 
  segmental 
  divisions 
  are 
  also 
  yellow. 
  The 
  ventral 
  surface 
  and 
  prolegs 
  

   are 
  uniformly 
  dingy-green 
  or 
  yellowish, 
  according 
  to 
  the 
  ground 
  of 
  the 
  

   dorsal 
  surface; 
  legs 
  black 
  and 
  shining 
  (Porritt). 
  The 
  larva 
  is 
  also 
  

   described 
  by 
  South 
  (Entom., 
  xviii., 
  p. 
  276), 
  by 
  Barrett 
  (L&p. 
  Brit. 
  IsUs 
  t 
  

   ix., 
  p. 
  345), 
  and 
  by 
  Dyar 
  (Jour. 
  New 
  Y. 
  Ent. 
  Soc, 
  iii., 
  p. 
  21). 
  Buckler 
  

   figured 
  larva3 
  in 
  three 
  different 
  stages 
  of 
  growth, 
  Juno 
  22nd, 
  1877 
  

   (Larvae, 
  etc., 
  ix., 
  pi. 
  clxiii., 
  figs. 
  2, 
  2a, 
  2b). 
  

  

  Variation 
  of 
  larva. 
  — 
  In 
  the 
  last 
  instar, 
  the 
  larva 
  vary 
  in 
  colour, 
  

   from 
  almost 
  pure 
  yellow 
  to 
  pure 
  green 
  (of 
  a 
  dingy 
  shade, 
  however), 
  

   with 
  a 
  purplish 
  dorsal 
  stripe, 
  which 
  varies 
  somewhat 
  in 
  width 
  ; 
  the 
  

  

  