﻿Maskell. 
  — 
  On 
  some 
  Coccidse 
  in 
  New 
  Zealand. 
  201 
  

  

  single 
  nervure, 
  are 
  oval, 
  and 
  extend 
  far 
  beyond 
  the 
  extremity 
  of 
  the 
  

   abdomen. 
  The 
  abdominal 
  spike, 
  which 
  has 
  a 
  tubular 
  sheath 
  of 
  larger 
  size 
  

   and 
  length 
  than 
  in 
  Asjncliotus, 
  is 
  double 
  and 
  long, 
  but 
  does 
  not 
  reach 
  the 
  

   tip 
  of 
  the 
  wiugs. 
  

  

  The 
  legs 
  are 
  hairy 
  ; 
  femora 
  and 
  tibife 
  about 
  the 
  same 
  length, 
  but 
  the 
  

   former 
  thicker 
  than 
  the 
  latter 
  ; 
  tarsi 
  thick 
  and 
  spindle-shaped, 
  ending 
  in 
  

   the 
  usual 
  single 
  claw. 
  The 
  great 
  distance 
  between 
  the 
  first 
  and 
  second 
  

   pair 
  of 
  legs 
  gives 
  the 
  insect 
  a 
  pecuhar 
  appearance. 
  

  

  2. 
  Diaspis 
  roses, 
  San 
  dberg. 
  

  

  Plate 
  VI., 
  fig. 
  9c. 
  

  

  This 
  also 
  is 
  European. 
  It 
  occurs 
  here 
  on 
  rose 
  trees 
  at 
  Governor's 
  Bay, 
  

  

  in 
  Mr. 
  Potts's 
  garden. 
  The 
  puparium 
  is 
  flat 
  and 
  white, 
  and 
  the 
  discarded 
  

  

  pellicles 
  on 
  one 
  side. 
  The 
  adult 
  female 
  is 
  of 
  a 
  deep 
  red 
  colour, 
  elongated 
  

  

  in 
  form, 
  distinguishable 
  from 
  all 
  other 
  species 
  by 
  the 
  size 
  of 
  the 
  cephalic 
  

  

  region 
  and 
  the 
  deep 
  corrugations 
  of 
  the 
  body. 
  Its 
  appearance 
  is 
  more 
  

  

  striking 
  than 
  that 
  of 
  any 
  other 
  species 
  of 
  the 
  Diaspid^e, 
  and 
  the 
  contrast 
  

  

  of 
  the 
  blood-red 
  head 
  and 
  thorax 
  with 
  the 
  bright 
  yellow 
  abdominal 
  region 
  

  

  is 
  curious. 
  

  

  The 
  cephahc 
  region, 
  mushroom-shaped, 
  is 
  quite 
  smooth. 
  There 
  is 
  no 
  

  

  appearance 
  of 
  rudimentary 
  antenna. 
  The 
  body 
  has 
  four 
  large 
  corruga- 
  

   tions, 
  nearly 
  equal 
  in 
  size, 
  and 
  on 
  the 
  last 
  two 
  are 
  a 
  few 
  spiny 
  hairs. 
  The 
  

   abdomen, 
  broken 
  by 
  serrations, 
  ends 
  in 
  two 
  lobes 
  with 
  a 
  depression 
  between 
  

   them. 
  The 
  pygidium 
  has 
  five 
  groups 
  of 
  spinnerets, 
  but 
  the 
  side 
  groups 
  are 
  

   almost 
  continuous. 
  The 
  upper 
  group 
  has 
  about 
  20 
  openings, 
  the 
  side 
  ones 
  

   50 
  or 
  60 
  ; 
  there 
  are 
  no 
  single 
  spinnerets 
  but 
  on 
  each 
  side 
  3 
  or 
  4 
  rows 
  of 
  

   large 
  oval 
  openings 
  forming 
  arches. 
  

  

  The 
  young 
  insect 
  is 
  brown, 
  oval, 
  with 
  the 
  head 
  a 
  little 
  flattened 
  

   anteriorly 
  ; 
  the 
  legs 
  and 
  antenna 
  and 
  abdominal 
  hairs 
  as 
  in 
  other 
  species. 
  

  

  The 
  cocoon 
  of 
  the 
  male 
  is 
  white, 
  cylindrical. 
  I 
  have 
  not 
  yet 
  a 
  specimen 
  

   of 
  the 
  perfect 
  insect. 
  

  

  3. 
  Diaspis 
  gigas, 
  sp. 
  nov. 
  

  

  Plate 
  VI., 
  fig. 
  10. 
  

   I 
  found 
  this 
  species 
  on 
  Atherosperuia 
  nova-zealanclice, 
  a 
  North 
  Island 
  tree, 
  

   of 
  which 
  Mr. 
  Armstrong 
  gave 
  me 
  a 
  branch 
  some 
  months 
  ago. 
  I 
  believe 
  it 
  

   best, 
  as 
  a 
  rule, 
  to 
  use 
  the 
  name 
  of 
  the 
  tree 
  on 
  which 
  a 
  scale-insect 
  lives 
  as 
  

   its 
  specific 
  name, 
  but 
  as 
  I 
  have 
  already 
  used 
  this 
  particular 
  name 
  in 
  the 
  

   case 
  of 
  an 
  AspicUotus, 
  I 
  prefer, 
  in 
  order 
  to 
  avoid 
  confusion, 
  to 
  call 
  the 
  

   present 
  species 
  by 
  a 
  descriptive 
  title. 
  I 
  have 
  lately 
  found 
  it 
  in 
  abundance 
  

   on 
  a 
  species 
  of 
  Astelia, 
  in 
  Eiccarton 
  Bush. 
  It 
  is 
  the 
  largest 
  of 
  the 
  Diaspidse 
  

   which 
  has 
  yet 
  come 
  under 
  my 
  notice 
  ; 
  the 
  puparium 
  of 
  the 
  female 
  is 
  some- 
  

   times 
  more 
  than 
  ^ 
  inch 
  long 
  and 
  j-g- 
  inch 
  wide 
  ; 
  the 
  female 
  reaches 
  -^-^ 
  inch 
  

   in 
  lengthi 
  

  

  