﻿Maskell. 
  — 
  On 
  some 
  Coccidge 
  in 
  Xew 
  Zealand. 
  205 
  

  

  My 
  subsections 
  of 
  tins 
  group, 
  after 
  having 
  said 
  so 
  much 
  of 
  its 
  general 
  

   characteristics, 
  are 
  as 
  follows 
  : 
  — 
  

  

  1. 
  LecanieoB, 
  for 
  the 
  species 
  having 
  the 
  body 
  of 
  the 
  female 
  naked, 
  

   often 
  viviparous. 
  

  

  2. 
  Pulvinariem, 
  for 
  the 
  species 
  having 
  the 
  body 
  naked, 
  but 
  formimg 
  

  

  cottony 
  nests 
  for 
  the 
  eggs. 
  

  

  3. 
  Lecanio-diaspidm, 
  for 
  the 
  species 
  having 
  the 
  body 
  covered 
  with 
  a 
  

  

  test 
  ; 
  sometimes 
  viviparous. 
  

  

  Of 
  course, 
  I 
  am 
  here 
  only 
  paying 
  attention 
  to 
  such 
  classes 
  as 
  contain 
  

   genera 
  known 
  to 
  me 
  in 
  New 
  Zealand. 
  There 
  are 
  many 
  other 
  divisions, 
  but 
  

   they 
  do 
  not 
  come 
  within 
  my 
  scope. 
  

  

  Subsection 
  I. 
  — 
  Lecanie^. 
  

  

  All 
  the 
  species 
  which 
  I 
  have 
  observed 
  in 
  this 
  class 
  are 
  European, 
  and 
  I 
  

   might 
  therefore, 
  according 
  to 
  my 
  intention 
  expressed 
  just 
  now, 
  pass 
  them 
  

   over 
  without 
  entering 
  into 
  details. 
  But 
  there 
  is 
  one 
  species 
  which 
  has 
  

   become 
  so 
  widely 
  spread 
  and 
  so 
  noxious 
  in 
  this 
  country, 
  and 
  which 
  is 
  

   moreover 
  so 
  excellent 
  a 
  tj^pe 
  of 
  the 
  whole 
  group, 
  that 
  I 
  am 
  constrained 
  to 
  

   dwell 
  more 
  particularly 
  upon 
  it. 
  This 
  species, 
  which 
  infests 
  in 
  our 
  green- 
  

   houses 
  a 
  vast 
  number 
  of 
  plants, 
  and 
  in 
  our 
  gardens 
  the 
  holly, 
  ivy, 
  ilex, 
  bay, 
  

   Portugal 
  laurel, 
  orange 
  and 
  other 
  trees, 
  is, 
  I 
  suppose, 
  tolerably 
  well 
  known, 
  

   as 
  far 
  as 
  its 
  outside 
  appearance 
  goes, 
  to 
  most 
  amongst 
  us. 
  It 
  is 
  

  

  1. 
  Lecanium 
  he&peridum 
  ; 
  auctorum. 
  

  

  Plate 
  VI., 
  fig. 
  12. 
  

  

  The 
  young 
  insect, 
  in 
  outUne, 
  is 
  not 
  much 
  different 
  from 
  that 
  of 
  Mytilas- 
  

   pis 
  p)omorum, 
  with 
  the 
  exception 
  of 
  the 
  abdominal 
  cleft. 
  In 
  colour 
  it 
  is 
  

   reddish 
  brown 
  ; 
  it 
  is 
  flat 
  and 
  very 
  active. 
  The 
  antennae 
  have 
  six 
  joints, 
  

   but 
  the 
  fifth 
  joint 
  looks 
  as 
  if 
  it 
  were 
  composed 
  of 
  two 
  soldered 
  together 
  ; 
  the 
  

   third 
  joint 
  is 
  the 
  longest. 
  The 
  last 
  joint 
  has 
  a 
  few 
  hairs. 
  The 
  tibiae 
  and 
  

   tarsi 
  are 
  of 
  about 
  equal 
  length 
  ; 
  the 
  upper 
  pair 
  of 
  hau's, 
  or 
  digitules, 
  above 
  

   the 
  claw 
  long, 
  the 
  lower 
  pair 
  short 
  and 
  harrow. 
  The 
  abdominal 
  lobes 
  end 
  

   in 
  two 
  very 
  long 
  setae. 
  Plate 
  VI., 
  fig. 
  12«. 
  

  

  The 
  adult 
  female 
  is 
  figured 
  by 
  Westwood 
  (vol. 
  2), 
  but 
  not 
  large 
  enough 
  

   for 
  detail. 
  M. 
  Signoret 
  gives 
  only 
  a 
  brief 
  description. 
  The 
  insect 
  is 
  flat, 
  

   oval, 
  brown 
  in 
  colour, 
  sometimes 
  as 
  much 
  as 
  ^ 
  inch 
  long. 
  The 
  abdominal 
  

   lobes 
  are 
  not, 
  in 
  the 
  Hve 
  animal, 
  so 
  apparent 
  as 
  in 
  the 
  young 
  ; 
  but 
  when 
  

   mounted 
  for 
  the 
  microscope 
  they 
  are 
  plainly 
  seen 
  to 
  be 
  without 
  the 
  two 
  

   long 
  hah's 
  characterising 
  the 
  young 
  insect 
  ; 
  as 
  shown 
  in 
  plate 
  VI., 
  fig. 
  llh. 
  

   The 
  anal 
  ring 
  is 
  surrounded 
  by 
  six 
  long 
  hairs. 
  The 
  lobes 
  are 
  triangular, 
  

   with 
  rounded 
  angles, 
  or 
  heart-shaped. 
  

  

  The 
  antennffi, 
  which 
  do 
  not, 
  as 
  in 
  the 
  Diaspid^, 
  disappear 
  with 
  age, 
  

   have 
  seven 
  joints 
  ; 
  fig. 
  12i. 
  The 
  first 
  and 
  second 
  joints 
  are 
  the 
  thickest; 
  

  

  