﻿SOME 
  CEYLON 
  COCCIDAE. 
  265 
  

  

  pores 
  are 
  in 
  pairs 
  and 
  open 
  in 
  an 
  extension 
  of 
  the 
  pygidial 
  margin 
  ; 
  they 
  are 
  

   elongate 
  oval 
  in 
  shape. 
  Circumgenital 
  pores 
  present. 
  Pygidium 
  with 
  two 
  pairs 
  of 
  

   lobes. 
  The 
  median 
  lobes 
  are 
  separate, 
  but 
  close 
  to 
  each 
  other, 
  somewhat 
  triangular 
  

   in 
  shape, 
  but 
  with 
  the 
  apex 
  nearer 
  to 
  the 
  mesal 
  side. 
  The 
  mesal 
  and 
  lateral 
  sides 
  

   form 
  an 
  unbroken 
  curve 
  with 
  the 
  apex. 
  The 
  lateral 
  side 
  slopes 
  towards 
  the 
  

   pygidium, 
  turning 
  sharply 
  cephalad 
  near 
  the 
  base 
  ; 
  their 
  margin 
  is 
  not 
  notched. 
  

   Laterad 
  of 
  the 
  median 
  lobes 
  : 
  — 
  a 
  seta 
  ; 
  a 
  plate 
  ; 
  a 
  triangular 
  gland-pore 
  projection, 
  

   reaching 
  as 
  far 
  caudad 
  as 
  does 
  the 
  second 
  lobe 
  ; 
  second 
  pair 
  of 
  lobes, 
  the 
  mesal 
  

   half 
  of 
  which 
  is 
  almost 
  as 
  large 
  as 
  the 
  median 
  lobe 
  and 
  of 
  much 
  the 
  same 
  shape, 
  

   the 
  lateral 
  half 
  being 
  about 
  half 
  as 
  broad, 
  much 
  shorter 
  and 
  rectangular 
  in 
  shape 
  ; 
  

   a 
  seta 
  ; 
  two 
  long 
  plates 
  ; 
  two 
  gland 
  pores 
  ; 
  one 
  seta 
  ; 
  two 
  plates 
  ; 
  two 
  gland 
  

   pores 
  ; 
  one 
  seta 
  ; 
  two 
  plates 
  ; 
  one 
  gland 
  pore. 
  

  

  On 
  twigs 
  of 
  Mesua 
  ferrea. 
  

  

  What 
  may 
  be 
  the 
  male 
  scale 
  of 
  this 
  insect 
  occurs 
  on 
  the 
  under 
  surface 
  of 
  the 
  leaves 
  

   close 
  to 
  the 
  midrib. 
  The 
  exuvium 
  is 
  yellowish 
  at 
  the 
  pygidial 
  end, 
  the 
  rest 
  of 
  the 
  

   scale 
  being 
  greyish- 
  white 
  and 
  uncarinated. 
  The 
  lobes 
  of 
  the 
  exuvium 
  are 
  large, 
  

   triangular, 
  rounded 
  at 
  apex 
  and 
  projecting 
  into 
  the 
  pygidium. 
  Laterad 
  of 
  each 
  lobe 
  

   are 
  two 
  setae 
  and 
  a 
  long 
  plate, 
  broad 
  at 
  its 
  base 
  and 
  tapering 
  rapidly 
  towards 
  the 
  

   apex. 
  Antenna 
  with 
  six 
  segments. 
  

  

  Aonidia 
  ferreae, 
  sp. 
  now 
  

  

  Female 
  scale 
  very 
  black, 
  shining. 
  The 
  first 
  exuvium 
  is 
  situated 
  usually 
  just 
  

   within 
  the 
  margin, 
  sometimes 
  more 
  centrally, 
  and 
  is 
  black 
  with 
  the 
  apex 
  yellowish 
  ; 
  

   it 
  is 
  raised 
  in 
  the 
  centre 
  and 
  striated. 
  The 
  rest 
  of 
  the 
  scale 
  consists 
  of 
  the 
  second 
  

   exuvium. 
  The 
  venter 
  of 
  the 
  scale 
  is 
  white, 
  and 
  when 
  the 
  scale 
  is 
  removed 
  a 
  white 
  

   deposit 
  of 
  wax 
  is 
  left 
  on 
  the 
  twig. 
  

  

  It 
  is 
  a 
  very 
  difficult 
  matter 
  to 
  obtain 
  the 
  adult 
  female, 
  owing 
  to 
  the 
  fact 
  that 
  

   it 
  is 
  quite 
  enclosed. 
  The 
  pygidium 
  is 
  hyaline, 
  without 
  lobes 
  and 
  provided 
  with 
  a 
  

   fringe 
  of 
  about 
  24 
  long 
  pectinae. 
  The 
  anus 
  is 
  situated 
  about 
  three 
  times 
  its 
  own 
  

   length 
  from 
  the 
  margin 
  of 
  the 
  pygidium. 
  There 
  are 
  no 
  circumgenital 
  pores. 
  The 
  

   anus 
  and 
  vagina 
  are 
  superimposed. 
  The 
  female 
  contains 
  young 
  with 
  legs, 
  lobes 
  

   and 
  mouth-parts 
  well 
  developed. 
  The 
  apex 
  of 
  the 
  second 
  exuvium 
  bears 
  three 
  

   pairs 
  of 
  lobes, 
  each 
  longer 
  than 
  broad. 
  The 
  median 
  pair 
  is 
  widest 
  at 
  the 
  middle 
  

   length. 
  The 
  median 
  and 
  second 
  lobes 
  have 
  each 
  a 
  notch 
  on 
  the 
  lateral 
  side, 
  the 
  

   third 
  has 
  two 
  notches 
  or 
  is 
  minutely 
  toothed 
  ; 
  the 
  median 
  lobes 
  may 
  have 
  a 
  slight 
  

   notch 
  on 
  the 
  mesal 
  side 
  as 
  well. 
  There 
  are 
  two 
  pectinae 
  between 
  the 
  median 
  lobes, 
  

   two 
  between 
  median 
  and 
  second 
  lobes, 
  and 
  three 
  between 
  the 
  second 
  and 
  third 
  

   lobes 
  ; 
  the 
  apices 
  of 
  the 
  pectinae 
  are 
  on 
  a 
  level 
  with 
  the 
  apices 
  of 
  the 
  lobes 
  and 
  are 
  

   frayed 
  at 
  the 
  apex. 
  Laterad 
  of 
  the 
  third 
  lobes 
  are 
  three 
  pectinae 
  followed 
  by 
  an 
  

   acute 
  lobe-like 
  projection. 
  The 
  interlobular 
  incisions 
  are 
  deep. 
  

  

  On 
  twigs 
  of 
  Mesua 
  ferrea. 
  

  

  Neolecanium 
  cinnamomi, 
  sp. 
  now 
  

  

  Old 
  scales 
  dark 
  brown 
  in 
  colour, 
  younger 
  scales 
  greyish- 
  brown 
  and 
  very 
  incon- 
  

   spicuous 
  against 
  the 
  bark 
  of 
  the 
  branches 
  on 
  which 
  they 
  occur. 
  The 
  younger 
  scale 
  

   has 
  a 
  slight 
  whitish 
  mid-dorsal 
  longitudinal 
  ridge, 
  and 
  a 
  submarginal 
  wavy 
  white 
  

  

  