﻿Maskell. 
  — 
  On 
  some 
  CoccidEe 
  in 
  New 
  Zealand. 
  193 
  

  

  longer 
  and 
  very 
  thick, 
  tarsi 
  somewhat 
  longer 
  and 
  thin, 
  and 
  a 
  single 
  claw 
  at 
  

   the 
  tip. 
  Just 
  above 
  the 
  claw 
  spring 
  two 
  long 
  hairs 
  each 
  ending 
  in 
  a 
  knob. 
  

  

  After 
  fixing 
  upon 
  a 
  suitable 
  resting-place 
  the 
  young 
  insect 
  remains 
  in 
  

   the 
  same 
  state 
  for 
  some 
  time, 
  and 
  then 
  undergoes 
  its 
  first 
  transformation. 
  

   The 
  result 
  of 
  this 
  is 
  seen 
  in 
  the 
  puparium, 
  where 
  the 
  oval 
  pellicle 
  overlying 
  

   what 
  is 
  evidently 
  the 
  pellicle 
  of 
  the 
  young 
  one 
  shows 
  that 
  it 
  becomes 
  merely 
  

   an 
  oval 
  inert 
  mass. 
  The 
  antenuse 
  and 
  legs 
  disappear, 
  the 
  skin 
  of 
  the 
  

   former 
  remaining 
  attached 
  to 
  the 
  first 
  pellicle. 
  The 
  mouth 
  only 
  survives 
  

   the 
  change. 
  In 
  this 
  second 
  stage 
  the 
  insect 
  begins 
  to 
  spin 
  its 
  shell, 
  or 
  

   puparium, 
  and 
  after 
  another 
  interval 
  undergoes 
  another 
  transformation 
  

   appearing 
  at 
  length 
  in 
  the 
  shape 
  shown 
  in 
  plate 
  V., 
  fig. 
  2b, 
  or 
  as 
  the 
  perfect 
  

   female. 
  

  

  The 
  body 
  is 
  here 
  seen 
  to 
  have 
  lost 
  its 
  former 
  regularly 
  oval 
  shape 
  and 
  

   to 
  have 
  become 
  longer. 
  The 
  cephalic 
  end 
  and 
  about 
  half 
  the 
  rest 
  are 
  

   smooth, 
  the 
  remainder 
  much 
  corrugated. 
  There 
  are 
  no 
  legs, 
  or 
  antennae 
  

   proper, 
  but 
  in 
  some 
  specimens 
  may 
  be 
  seen 
  two 
  extremely 
  minute 
  pro- 
  

   tuberances 
  on 
  the 
  head, 
  each 
  with 
  a 
  few 
  attached 
  hairs, 
  which 
  are 
  said 
  to 
  

   be 
  rudimentary 
  antennse. 
  Some 
  of 
  the 
  corrugations 
  near 
  the 
  abdomen 
  

   have 
  three 
  or 
  four 
  spines. 
  The 
  mouth, 
  or 
  rostrum, 
  which 
  is 
  of 
  the 
  same 
  

   general 
  character 
  as 
  in 
  all 
  Coccidse, 
  exhibits 
  three 
  very 
  long 
  setsB. 
  

  

  The 
  abdominal 
  region, 
  as 
  in 
  all 
  Diaspidse, 
  is 
  bright 
  yellow. 
  Plate 
  V., 
  

   fig. 
  2c, 
  shows 
  its 
  outline, 
  which 
  is 
  a 
  pretty 
  regular 
  curve 
  broken 
  by 
  a 
  

   number 
  of 
  small 
  triangular 
  and 
  foliated 
  lobes. 
  Two 
  of 
  tliese 
  lobes, 
  in 
  the 
  

   middle, 
  are 
  the 
  largest, 
  and 
  have 
  on 
  each 
  side 
  of 
  them 
  one 
  smaller 
  lobe. 
  

   Between 
  the 
  lobes 
  are 
  several 
  strong 
  spines. 
  The 
  anal 
  orifice 
  is 
  situated 
  at 
  

   what 
  might 
  be 
  called 
  the 
  focus 
  of 
  the 
  curve 
  of 
  the 
  abdomen 
  ; 
  it 
  is 
  oval 
  and 
  

   hairless. 
  

  

  Forming 
  an 
  arch 
  around 
  the 
  anus 
  are 
  five 
  groups 
  or 
  bunches 
  of 
  minute 
  

   ch'cular 
  openings, 
  which 
  are 
  the 
  spinnerets 
  used 
  in 
  building 
  up 
  the 
  

   puparium. 
  In 
  the 
  uppermost 
  group 
  are 
  17 
  openings, 
  in 
  each 
  of 
  the 
  two 
  

   upper 
  side 
  groups 
  17, 
  and 
  in 
  each 
  of 
  the 
  two 
  lower 
  groups 
  14. 
  Plate 
  

   v., 
  fig. 
  2d 
  shows 
  the 
  appearance 
  of 
  these 
  spinnerets, 
  magnified 
  700 
  

   diameters. 
  A 
  few 
  single 
  spinnerets 
  are 
  scattered 
  about 
  the 
  abdominal 
  

   region, 
  and 
  near 
  the 
  edge 
  of 
  the 
  abdomen 
  is 
  a 
  row 
  of 
  egg-shaped 
  openings, 
  

   larger 
  than 
  the 
  others, 
  the 
  narrow 
  ends 
  of 
  the 
  eggs 
  pointing 
  outwards 
  ; 
  

   these 
  are 
  arranged 
  in 
  pairs. 
  

  

  I 
  am 
  inclined 
  to 
  think 
  that 
  the 
  whole 
  abdomen 
  is 
  covered 
  with 
  extremely 
  

   minute 
  fine 
  hairs, 
  for 
  it 
  usually 
  presents 
  a 
  velvety 
  appearance, 
  with 
  very 
  

   fine 
  parallel 
  strise. 
  

  

  When 
  in 
  its 
  perfect 
  stage 
  the 
  female 
  insect 
  occupies 
  nearly 
  the 
  whole 
  

   puparium. 
  Later 
  on, 
  however, 
  she 
  begins 
  laying 
  her 
  eggs, 
  with 
  which 
  she 
  

   gradually 
  fills 
  the 
  shield, 
  shrivelling 
  up 
  herself 
  into 
  the 
  narrow 
  end 
  of 
  itj 
  

  

  u 
  

  

  