﻿210 
  Transactions. 
  — 
  Zoology. 
  

  

  ^ 
  incli. 
  A 
  rather 
  broad 
  edge 
  rims 
  round 
  the 
  body, 
  on 
  the 
  interior 
  of 
  which 
  

   are 
  seen 
  the 
  numerous 
  circular 
  openings 
  of 
  the 
  spinnerets. 
  The 
  antennae 
  

   and 
  feet 
  do 
  not 
  seem 
  to 
  have 
  changed. 
  There 
  is 
  a 
  small 
  quantity 
  of 
  white 
  

   cottony 
  fibre 
  visible 
  on 
  the 
  under 
  side, 
  but 
  the 
  general 
  appearance 
  is 
  rather 
  

   leathery. 
  

  

  The 
  test, 
  detached 
  from 
  the 
  insect, 
  is 
  seen 
  to 
  have 
  become 
  thicker 
  and 
  

   more 
  solid 
  than 
  on 
  the 
  young 
  female. 
  It 
  has 
  now 
  the 
  appearance 
  not 
  of 
  a 
  

   translucent 
  film 
  but 
  of 
  a 
  thin 
  cake 
  of 
  cloudy 
  wax. 
  It 
  is 
  . 
  still 
  extremely 
  

   brittle, 
  but 
  it 
  does 
  not 
  dissolve 
  when 
  immersed 
  in 
  Canada 
  balsam. 
  The 
  

   whole 
  of 
  the 
  central 
  space, 
  as 
  shown 
  in 
  fig, 
  13e, 
  is 
  seen 
  to 
  be 
  divided 
  into 
  

   segments, 
  u'regular 
  in 
  shape, 
  of 
  which 
  the 
  row 
  along 
  the 
  middle 
  may 
  be 
  

   said 
  to 
  be 
  roughly 
  hexagonal, 
  having 
  next 
  to 
  it 
  on 
  each 
  side 
  a 
  row 
  of 
  

   elongated 
  pentagons 
  with 
  apices 
  turned 
  outwards 
  and 
  then 
  a 
  third 
  row 
  of 
  

   pentagons 
  with 
  their 
  bases 
  outwards, 
  Vvdth 
  a 
  few 
  triangular 
  segments 
  fiUing 
  

   up 
  the 
  spaces. 
  The 
  divisions 
  between 
  the 
  segments 
  are 
  somewhat 
  thickened, 
  

   and 
  along 
  each 
  runs 
  a 
  hue 
  of 
  very 
  small 
  oval 
  marks, 
  possibly 
  spinneret 
  

   orifices. 
  I 
  have 
  not, 
  in 
  this 
  species, 
  observed 
  any 
  symmetrical 
  markings 
  

   on 
  the 
  interior 
  segments, 
  a 
  feature 
  which, 
  I 
  think, 
  distinguishes 
  the 
  next 
  

   species 
  on 
  my 
  list. 
  

  

  The 
  apices 
  of 
  the 
  first 
  row 
  of 
  pentagons 
  reach 
  nearly 
  to 
  the 
  edge 
  of 
  the 
  

   solid 
  part 
  of 
  the 
  test. 
  The 
  bases 
  of 
  the 
  second 
  row 
  form 
  the 
  edge 
  itself, 
  and 
  

   are 
  in 
  juxtaposition 
  to 
  the 
  segments 
  of 
  the 
  fringe, 
  which 
  are 
  much 
  the 
  same 
  

   as 
  in 
  the 
  earlier 
  stage. 
  In 
  this 
  outer 
  row 
  of 
  pentagons, 
  however, 
  and 
  in 
  the 
  

   fringe 
  are 
  observable 
  certain 
  peculiar 
  markings, 
  shown 
  in 
  figs. 
  Ide 
  and 
  13/. 
  

   I 
  am 
  not 
  aware 
  of 
  the 
  use 
  of 
  these, 
  which 
  appear 
  to 
  be 
  produced 
  by 
  rows 
  of 
  

   perforations 
  containing 
  air. 
  The 
  effect 
  of 
  them 
  is 
  not 
  without 
  beauty. 
  

  

  In 
  autumn 
  the 
  female 
  is 
  seen 
  in 
  her 
  last 
  stage. 
  Having 
  produced 
  all 
  her 
  

   young 
  she 
  becomes 
  shrivelled 
  up 
  at 
  the 
  cephalic 
  end 
  of 
  the 
  test 
  in 
  a 
  shape- 
  

   less 
  mass, 
  in 
  which 
  the 
  legs, 
  antennae 
  and 
  abdominal 
  lobes 
  can 
  be 
  dis- 
  

   tinguished 
  with 
  difficulty. 
  

  

  The 
  male 
  of 
  this 
  species 
  is 
  by 
  no 
  means 
  uncommon. 
  In 
  the 
  spring 
  a 
  

   large 
  proportion 
  of 
  males 
  will 
  be 
  found 
  under 
  tests 
  similar 
  to 
  those 
  of 
  the 
  

   female. 
  The 
  insect 
  is 
  shown 
  in 
  plate 
  VII., 
  fig. 
  14rt. 
  

  

  The 
  head 
  is 
  somewhat 
  rounder 
  than 
  those 
  of 
  the 
  Diaspids. 
  The 
  eyes 
  

   are 
  small 
  and 
  granular, 
  and 
  there 
  are 
  four 
  pairs 
  of 
  them. 
  The 
  antennse, 
  

   fig. 
  14rt', 
  are 
  placed 
  at 
  the 
  anterior 
  part; 
  they 
  are 
  long, 
  having 
  nine 
  joints, 
  

   of 
  which 
  the 
  first 
  is 
  very 
  short 
  and 
  thick, 
  the 
  second 
  thin 
  and 
  rather 
  longer, 
  

   the 
  three 
  next 
  each 
  about 
  twice 
  as 
  long 
  as 
  the 
  second, 
  the 
  remainder 
  equal 
  

   to 
  the 
  second 
  and 
  to 
  each 
  other. 
  Every 
  joint 
  has 
  numerous 
  hairs. 
  

  

  The 
  coxae 
  are 
  thick, 
  the 
  femora 
  longer 
  and 
  more 
  slender, 
  the 
  tibisD 
  still 
  

   loBger 
  and 
  thinner, 
  broadening 
  a 
  Httle 
  to 
  the 
  tarsus 
  which 
  is 
  not 
  quite 
  half 
  

  

  