﻿224 
  Transactions. 
  — 
  Zoology. 
  

  

  not 
  able 
  to 
  consider 
  these- 
  lateral 
  appendages 
  as 
  wings 
  ; 
  first, 
  because 
  they 
  

   start 
  from 
  the 
  head 
  itself 
  and 
  not 
  from 
  the 
  thorax; 
  secondly, 
  because 
  

   tracheae 
  may 
  be 
  seen 
  ramifying 
  from 
  the 
  thoracic 
  spiracles 
  through 
  them 
  ; 
  

   thirdly, 
  because 
  iu 
  the 
  discarded 
  tests 
  which, 
  in 
  November, 
  can 
  be 
  found 
  

   pretty 
  numerous, 
  these 
  appendages 
  are 
  very 
  clearly 
  portions 
  of 
  the 
  test 
  

   itself; 
  fourthly, 
  because 
  the 
  fringe 
  runs 
  round 
  their 
  edges 
  in 
  the 
  same 
  way 
  

   as 
  on 
  the 
  rest. 
  

  

  The 
  second 
  peculiarity 
  is 
  in 
  the 
  different 
  size 
  of 
  the 
  thoracic 
  and 
  

   abdominal 
  regions 
  and 
  the 
  clear 
  line 
  of 
  demarcation 
  between 
  them. 
  In 
  the 
  

   other 
  species 
  of 
  Coccid^ 
  it 
  is 
  difficult, 
  if 
  not 
  impossible, 
  to 
  tell 
  where 
  the 
  

   thoracic 
  portion 
  of 
  the 
  female 
  ends 
  and 
  the 
  abdominal 
  portion 
  begins. 
  

   In 
  Fowellia 
  the 
  division 
  is 
  as 
  distinct 
  as 
  in 
  the 
  males 
  of 
  the 
  other 
  genera. 
  

  

  A 
  third 
  peculiarity 
  is 
  in 
  the 
  feet, 
  which 
  I 
  shall 
  describe 
  presently. 
  

  

  The 
  eggs 
  of 
  this 
  species 
  are 
  bright 
  yellow, 
  tapering 
  to 
  a 
  point 
  at 
  one 
  

   end 
  ; 
  the 
  point 
  appears 
  to 
  be 
  somewhat 
  hooked 
  ; 
  fig. 
  22a. 
  They 
  are 
  seen 
  

   attached 
  in 
  clusters 
  to 
  twigs 
  of 
  Discaria 
  and 
  Pittosporum. 
  

  

  The 
  young 
  insect 
  is 
  extremely 
  minute, 
  not 
  so 
  large 
  as 
  the 
  dot 
  over 
  the 
  

   letter 
  i 
  in 
  small 
  type. 
  Its 
  colour 
  is 
  brown; 
  the 
  winglike 
  appendages 
  are 
  

   not 
  distinguishable. 
  The 
  abdomen, 
  which 
  is 
  similar 
  in 
  outline 
  to 
  that 
  of 
  

   the 
  adult, 
  is 
  marked 
  by 
  six 
  transverse 
  dark 
  bands 
  and 
  a 
  dark 
  patch 
  at 
  the 
  

   extremity, 
  fig. 
  22c. 
  From 
  each 
  band, 
  at 
  the 
  edge, 
  sprmg 
  long 
  transparent 
  

   tubes, 
  in 
  form 
  of 
  fringe, 
  but 
  they 
  are 
  not 
  set 
  so 
  closely 
  together 
  as 
  in 
  the 
  

   later 
  stages. 
  The 
  antennse, 
  I 
  think, 
  have 
  only 
  four 
  joints, 
  of 
  which 
  the 
  

   third 
  is 
  the 
  longest; 
  the 
  fourth 
  joint 
  has 
  two 
  long 
  hairs. 
  The 
  legs 
  are 
  

   short 
  and 
  very 
  thick 
  ; 
  I 
  saw 
  no 
  coxa 
  ; 
  the 
  foot 
  resembles 
  that 
  of 
  the 
  adult. 
  

  

  In 
  the 
  next 
  stage 
  the 
  general 
  form 
  is 
  not 
  altered. 
  The 
  bands 
  of 
  the 
  

   abdomen 
  have 
  become 
  fainter, 
  and 
  the 
  tubes 
  of 
  the 
  fringe 
  are 
  set 
  closer 
  

   together. 
  

  

  Still 
  later, 
  the 
  insect 
  appears 
  as 
  in 
  fig. 
  226. 
  This 
  is 
  the 
  last 
  stage 
  which 
  

   I 
  have 
  been 
  able 
  to 
  observe. 
  The 
  four 
  wing-like 
  r^ppendages 
  are 
  now 
  

   clearly 
  defined, 
  but, 
  as 
  shown 
  in 
  the 
  figure, 
  five 
  trachea 
  ramify 
  from 
  the 
  

   body 
  through 
  them, 
  and 
  they 
  cannot 
  be 
  considered 
  as 
  wings. 
  The 
  head, 
  

   thorax 
  and 
  abdomen 
  are 
  distinct. 
  The 
  head, 
  transverse, 
  is 
  oval; 
  the 
  eyes 
  

   are 
  large, 
  faceted, 
  red 
  in 
  colour. 
  The 
  mentum, 
  tri-articulate, 
  ends 
  in 
  brown 
  

   toothlike 
  processes. 
  The 
  antenna 
  have 
  six 
  joints 
  ; 
  the 
  first 
  and 
  second 
  

   very 
  broad 
  and 
  short, 
  the 
  third 
  narrower 
  and 
  longer, 
  the 
  fourth 
  and 
  fifth 
  

   still 
  narrower 
  and 
  shorter 
  than 
  the 
  third, 
  the 
  sixth 
  very 
  long, 
  somewhat 
  

   fusiform, 
  with 
  two 
  small 
  spikes 
  at 
  the 
  tip 
  and 
  just 
  above 
  the 
  spikes 
  a 
  long 
  

   hair.* 
  See 
  fig. 
  22d. 
  The 
  legs 
  are 
  thick 
  and 
  long, 
  set 
  equi-distant 
  on 
  the 
  

   thoracic 
  region 
  ; 
  the 
  coxa 
  and 
  femur 
  very 
  thick, 
  the 
  tibia 
  and 
  tarsus 
  some- 
  

  

  * 
  This 
  long 
  hair 
  is 
  not 
  distinguishable 
  in 
  all 
  specimens. 
  

  

  