﻿THE 
  COCCIDAE 
  OF 
  SOUTH 
  AFRICA. 
  103 
  

  

  beyond 
  the 
  level 
  of 
  the 
  tips 
  of 
  the 
  median 
  lobes 
  ; 
  the 
  margin 
  just 
  beyond 
  the 
  second 
  

   lobe 
  bears 
  two 
  large 
  dorsal 
  glands, 
  like 
  those 
  of 
  the 
  series 
  on 
  the 
  next 
  segments 
  

   anteriorly; 
  there 
  are 
  only 
  four 
  dorsal 
  glands 
  in 
  the 
  short 
  rows 
  nearest 
  the 
  anal 
  orifice. 
  

   The 
  middle 
  of 
  the 
  body 
  is 
  red-brown, 
  and 
  strongly 
  chitinised. 
  Circumgenital 
  glands 
  

   in 
  eight 
  groups 
  ; 
  the 
  posterior 
  laterals 
  19, 
  middle 
  laterals 
  (cephalolaterals 
  of 
  other 
  

   genera) 
  11, 
  median 
  5, 
  in 
  a 
  transverse 
  row, 
  and 
  the 
  anterior 
  groups 
  characteristic 
  of 
  

   Poliaspis 
  form 
  a 
  transverse 
  series 
  broken 
  into 
  three 
  linear 
  groups 
  of 
  three 
  or 
  four, 
  

   which 
  are 
  widely 
  separated. 
  

  

  " 
  (J 
  scale 
  tricarinate. 
  

  

  " 
  On 
  Carissa 
  (? 
  C. 
  grandiflora, 
  D.C.) 
  plant, 
  which 
  belongs 
  to 
  the 
  Apocynaceae, 
  

   Durban, 
  Natal 
  (Fuller). 
  In 
  these 
  species 
  and 
  P. 
  cycadis 
  the 
  anterior 
  group 
  of 
  glands 
  

   are 
  in 
  transverse 
  lines 
  ; 
  in 
  P. 
  media, 
  and 
  the 
  species 
  described 
  by 
  Fuller 
  from 
  

   Australia, 
  the 
  groups 
  are 
  circular." 
  

  

  Habitat 
  : 
  On 
  Carissa 
  grandiflora 
  (amatingula), 
  Durban 
  ; 
  collected 
  by 
  C. 
  Fuller 
  

   (part 
  of 
  original 
  material). 
  On 
  " 
  umkavoti 
  ' 
  : 
  (Chaetachme 
  aristata), 
  Durban 
  ; 
  

   collected 
  by 
  C. 
  Fuller, 
  October 
  1914. 
  

  

  Collection 
  Nos. 
  : 
  181 
  and 
  167. 
  

  

  160. 
  Chionaspis 
  (Pinnaspis) 
  cyanogena 
  (Ckll.) 
  (Plate 
  vi, 
  fig. 
  180). 
  

  

  Hemichionaspis 
  cyanogena, 
  Ckll., 
  The 
  Entom. 
  xxxiv, 
  p. 
  226, 
  1901 
  ; 
  Fernald, 
  

   Catalogue, 
  p. 
  240, 
  1903. 
  

  

  Scale 
  of 
  adult 
  $ 
  about 
  2 
  mm. 
  long, 
  narrow, 
  moderately 
  convex, 
  white, 
  but 
  appear- 
  

   ing 
  slightly 
  greyish 
  in 
  massed 
  specimens. 
  Exuviae 
  pale 
  yellow 
  to 
  orange 
  ; 
  second 
  

   exuviae 
  covered 
  by 
  a 
  thin 
  secretionary 
  layer 
  which 
  is 
  easily 
  flaked 
  off 
  and 
  therefore 
  

   often 
  missing. 
  

  

  Puparium 
  of 
  £ 
  white, 
  non-carinate, 
  or 
  with 
  a 
  distinct 
  median 
  ridge. 
  Exuviae 
  pale 
  

   yellowish. 
  

  

  The 
  body 
  of 
  the 
  $ 
  is 
  elongate, 
  often 
  rather 
  narrow 
  in 
  front 
  and 
  suddenly 
  broadening 
  

   to 
  about 
  the 
  middle 
  and 
  suddenly 
  narrowing 
  again 
  to 
  the 
  pointed 
  pygidium. 
  The 
  

   margins 
  of 
  the 
  free 
  abdominal 
  segments 
  are 
  not 
  conspicuously 
  produced, 
  but 
  are 
  

   supplied 
  with 
  numerous 
  gland-openings 
  and 
  a 
  few 
  short, 
  pointed 
  projections. 
  The 
  

   pygidium 
  has 
  the 
  median 
  lobes 
  moderately 
  produced, 
  their 
  inner 
  margins 
  straight 
  and 
  

   in 
  close 
  contact, 
  their 
  outer 
  extremities 
  sloping 
  gently 
  backward 
  and 
  twice 
  notched, 
  

   forming 
  three 
  sub-equal 
  rounded 
  crenulations. 
  The 
  median 
  lobes 
  and 
  the 
  posterior 
  

   median 
  part 
  of 
  the 
  pygidial 
  area 
  are 
  yellow, 
  and 
  the 
  yellowish 
  coloured 
  spots 
  on 
  the 
  

   margin 
  may 
  indicate 
  three 
  other 
  pairs 
  of 
  rudimentary 
  lobes. 
  At 
  these 
  points 
  gland- 
  

   openings 
  are 
  apparent, 
  and 
  small 
  rounded 
  projections 
  may 
  be 
  seen 
  on 
  the 
  margin 
  ; 
  

   the 
  plates 
  are 
  a 
  little 
  longer 
  than 
  the 
  median 
  lobes 
  and 
  are 
  distributed 
  as 
  shown 
  in 
  

   fig. 
  180. 
  Antennal 
  tubercles 
  ± 
  globular, 
  with 
  one 
  curved 
  flagellum. 
  Circumgenital 
  

   glands 
  in 
  5 
  large 
  groups 
  : 
  

  

  12—18 
  

   15—19 
  15—19 
  

   13—17 
  13—17 
  

  

  Habitat: 
  On 
  Alternanthera 
  sessilis, 
  R. 
  Br., 
  Durban; 
  collected 
  by 
  C. 
  Fuller. 
  On 
  

   Alternantliera 
  sessilis, 
  E-. 
  Br., 
  Scottsburg, 
  and 
  on 
  native 
  weed, 
  Natal 
  coast; 
  collected 
  

   by 
  C. 
  Fuller, 
  July 
  1915. 
  

  

  Collection 
  Nos. 
  : 
  177 
  and 
  177a. 
  

  

  