﻿214 
  Transactions. 
  — 
  Zoology. 
  

  

  have 
  almost 
  all 
  seven-jointed 
  antennae 
  in 
  the 
  adult. 
  The 
  second 
  joint, 
  fig. 
  

   16c, 
  is 
  very 
  short, 
  the 
  third 
  the 
  longest, 
  the 
  fourth, 
  fifth 
  and 
  sixth 
  about 
  

   equal 
  in 
  length 
  ; 
  the 
  last 
  three 
  have 
  some 
  hairs. 
  The 
  feet, 
  fig. 
  16(3, 
  have 
  the 
  

   femur 
  thick 
  and 
  strong, 
  tibia 
  rather 
  longer 
  and 
  thick, 
  tarsus 
  still 
  longer 
  

   and 
  thin 
  ; 
  the 
  u^Dper 
  digitules 
  very 
  long, 
  the 
  lower 
  pair 
  narrow, 
  about 
  twice 
  

   as 
  long 
  as 
  the 
  claw. 
  The 
  edge 
  of 
  the 
  body 
  is 
  surrounded 
  with 
  a 
  row 
  of 
  

   small 
  spines, 
  of 
  which 
  each 
  alternate 
  spine 
  is 
  pointed 
  (fig. 
  IQd), 
  the 
  remainder 
  

   club-shaped. 
  The 
  abdominal 
  lobes 
  of 
  the 
  Lecanida. 
  are 
  present, 
  but 
  the 
  cleft 
  

   is 
  different 
  from 
  that 
  of 
  any 
  other 
  species. 
  The 
  abdomen, 
  as 
  shown 
  in 
  figs. 
  

   16i 
  and 
  IM, 
  ends 
  in 
  a 
  pair 
  of 
  narrow 
  curved 
  protuberances, 
  nearly 
  meeting 
  

   at 
  their 
  ends, 
  but 
  separated 
  above 
  by 
  a 
  broad 
  open 
  space 
  in 
  which 
  the 
  two 
  

   abdominal 
  lobes 
  are 
  seen 
  protruding. 
  The 
  row 
  of 
  alternate 
  spines 
  does 
  not 
  

   extend 
  round 
  this 
  space. 
  The 
  anal 
  ring 
  has 
  eight 
  long 
  hairs. 
  

  

  The 
  edge 
  of 
  the 
  body 
  shows 
  a 
  double 
  line, 
  like 
  a 
  ribbon, 
  in 
  which 
  are 
  set 
  

   the 
  alternate 
  spines. 
  Inside 
  this 
  is 
  a 
  row 
  of 
  spinnerets 
  with, 
  on 
  the 
  inner 
  

   side, 
  a 
  line 
  of 
  short 
  curves. 
  The 
  edge 
  itself 
  is 
  crenated. 
  

  

  The 
  female 
  in 
  the 
  stage 
  immediately 
  preceding 
  that 
  which 
  I 
  have 
  

   described, 
  and 
  before 
  covering 
  itself 
  with 
  the 
  test, 
  resembles 
  somewhat 
  the 
  

   female 
  of 
  Ctenocliiton, 
  as 
  given 
  in 
  plate 
  VII., 
  fig. 
  135. 
  The 
  outline 
  of 
  the 
  body 
  

   is 
  mu.ch 
  the 
  same, 
  with 
  the 
  four 
  spiracular 
  spines, 
  and 
  the 
  alternate 
  pointed 
  

   and 
  clubbed 
  spines 
  are 
  absent. 
  But, 
  on 
  close 
  examination, 
  it 
  cannot 
  be 
  

   mistaken 
  for 
  Ctenochito7i, 
  as 
  the 
  antennae 
  are 
  shorter 
  and 
  thicker, 
  and 
  the 
  

   abdominal 
  cleft 
  already 
  shows 
  signs 
  of 
  the 
  peculiar 
  shape 
  assumed 
  in 
  the 
  

   later 
  stage. 
  Moreover, 
  a 
  commencement 
  of 
  the 
  test 
  may 
  usually 
  be 
  detected, 
  

   and 
  this 
  is 
  quite 
  different 
  from 
  that 
  of 
  the 
  Ctenocliiton. 
  

  

  I 
  have 
  not 
  yet 
  found 
  the 
  male 
  of 
  this 
  interesting 
  species 
  which, 
  in 
  out- 
  

   ward 
  appearance, 
  has 
  some 
  similarity 
  to 
  Fairmairia 
  hipartita, 
  Signoret, 
  but 
  

   is 
  certainly 
  not 
  the 
  same. 
  ^ 
  

  

  I 
  OUGHT 
  now 
  to 
  proceed 
  to 
  the 
  description 
  of 
  the 
  thu'd 
  great 
  group 
  of 
  Scale 
  

   Insects, 
  the 
  Coccidse 
  proper. 
  But 
  I 
  must 
  first 
  give 
  an 
  account 
  of 
  a 
  genus 
  

   which 
  perhaps 
  should 
  have 
  come 
  into 
  my 
  last 
  paper, 
  but 
  which 
  I 
  had 
  not, 
  

   at 
  the 
  last 
  meeting 
  of 
  the 
  Institute, 
  made 
  out 
  sufficiently 
  for 
  description. 
  

  

  This 
  genus 
  is 
  somewhat 
  anomalous. 
  It 
  is 
  clearly 
  not 
  belonging 
  to 
  

   Lecanium, 
  nor 
  does 
  it 
  come 
  under 
  the 
  subdivision 
  Lecanio-diaspidse, 
  as 
  the 
  

   abdominal 
  lobes 
  are 
  wanting, 
  or 
  rather 
  different. 
  At 
  the 
  same 
  time 
  it 
  has 
  

   so 
  much 
  likeness 
  to 
  the 
  Lecanids 
  that 
  I 
  cannot 
  connect 
  it 
  with 
  any 
  other 
  

   group. 
  I 
  imagine, 
  then, 
  that 
  the 
  genus 
  is 
  new, 
  and 
  typical, 
  in 
  fact, 
  of 
  a 
  

   new 
  subdivision, 
  to 
  which 
  I 
  give 
  the 
  name 
  of 
  

  

  ASTEEOCHITON, 
  geU. 
  UOV. 
  

  

  The 
  genus 
  is 
  characterised 
  by 
  enclosure 
  in 
  a 
  test 
  which 
  is 
  so 
  intimately 
  

   attached 
  to 
  the 
  insect 
  that 
  it 
  cannot 
  be 
  removed 
  without 
  injury. 
  The 
  

  

  