﻿THE 
  COCCIDAE 
  OF 
  SOUTH 
  AFEICA. 
  99 
  

  

  153. 
  Chionaspis 
  (Phenacapsis) 
  lounsburyi, 
  Cooley 
  (Plate 
  v, 
  fig. 
  169). 
  

  

  Chionaspis 
  lounsburyi, 
  Cooley, 
  Can. 
  Ent. 
  xx, 
  p. 
  87, 
  1898. 
  

  

  Phenacaspis 
  lounsburyi, 
  Fernald, 
  Catalogue, 
  p. 
  238, 
  1903. 
  

  

  Adult 
  $ 
  scale 
  about 
  3 
  mm. 
  long, 
  white, 
  glossy 
  and 
  pearly, 
  sides 
  almost 
  parallel 
  

   when 
  at 
  the 
  margin 
  of 
  a 
  leaf, 
  but 
  usually 
  broadened 
  behind 
  the 
  middle 
  when 
  on 
  the 
  

   blade 
  ; 
  evenly 
  rounded 
  behind, 
  often 
  with 
  faint 
  transverse 
  ridges. 
  Ventral 
  scale 
  

   absent 
  or 
  represented 
  only 
  by 
  the 
  incurved 
  margins 
  of 
  the 
  dorsal 
  scale 
  and 
  an 
  

   extremely 
  delicate 
  layer 
  which 
  remains 
  on 
  the 
  leaf. 
  Exuviae 
  orange-yellow 
  or 
  orange- 
  

   brown 
  ; 
  first 
  exuviae 
  paler, 
  second 
  covered 
  by 
  a 
  pearly 
  white 
  layer 
  of 
  

   secretion. 
  

  

  <$ 
  puparium 
  about 
  1 
  mm. 
  long, 
  similar 
  to 
  that 
  of 
  <j> 
  but 
  smaller, 
  non-carinated. 
  

  

  Body 
  of 
  the 
  adult 
  $ 
  elongate, 
  all 
  colourless 
  and 
  hyaline, 
  except 
  the 
  mouth-parts 
  

   and 
  lobes 
  which 
  are 
  faintly 
  yellow. 
  The 
  free 
  abdominal 
  segments 
  are 
  not 
  produced; 
  

   at 
  the 
  margin, 
  but 
  are 
  slightly 
  rounded. 
  

  

  L 
  x 
  low, 
  broad, 
  and 
  very 
  widely 
  divergent, 
  usually 
  appearing 
  as 
  though 
  they 
  pro- 
  

   jected 
  from 
  behind 
  the 
  thickened 
  median 
  area 
  of 
  the 
  pygidium. 
  L. 
  2 
  composed 
  of 
  two 
  

   small 
  lobules 
  which 
  are 
  distinctly 
  separated 
  ; 
  the 
  inner 
  lobule 
  is 
  the 
  larger. 
  Lobes 
  

   distinctly 
  striate. 
  Plates 
  simple, 
  thin. 
  

  

  The 
  antennae 
  are 
  placed 
  a 
  long 
  way 
  back 
  near 
  the 
  mouth-parts 
  and 
  consist 
  of 
  minute 
  

   tubercles 
  each 
  with 
  one 
  long 
  thin 
  curved 
  hair. 
  Parastigmatic 
  glands 
  present, 
  usually 
  

   3 
  to 
  5 
  at 
  anterior 
  spiracles. 
  Circumgenital 
  glands 
  in 
  5 
  groups 
  : 
  

  

  4—7 
  

   11—15 
  11—15 
  

   20—26 
  20—26 
  

  

  Habitat 
  : 
  On 
  Rhus 
  thunbergi, 
  Ceres, 
  C.P. 
  ; 
  collected 
  by 
  C. 
  P. 
  Lounsbury, 
  , 
  1896. 
  

   On 
  a 
  native 
  Proteaceous 
  plant, 
  Wolseley, 
  C.P. 
  ; 
  collected 
  by 
  C. 
  P. 
  Lounsbury. 
  June 
  

   1915. 
  

  

  Collection 
  Nos. 
  : 
  166, 
  170. 
  

  

  153a. 
  Chionaspis 
  (Phenacaspis) 
  lounsburyi 
  ekebergiae, 
  var. 
  n. 
  (Plate 
  v, 
  fig. 
  168). 
  

  

  5 
  scale 
  similar 
  to 
  that 
  of 
  C. 
  lounsburyi, 
  but 
  readily 
  distinguished 
  by 
  the 
  following 
  

   characters 
  : 
  — 
  

  

  Parastigmatic 
  glands 
  present, 
  5 
  or 
  6 
  glands 
  in 
  a 
  close 
  crescent. 
  Pygidial 
  margin 
  

   as 
  figured 
  (fig. 
  168). 
  Circumgenital 
  glands 
  more 
  numerous, 
  e.g., 
  

  

  6—9 
  

   11—20 
  11-20 
  

   29—46 
  29—46 
  

  

  Plates 
  more 
  distinct 
  and 
  last 
  row 
  of 
  dorsal 
  glands 
  more 
  numerous 
  than 
  in 
  

   C. 
  lounsburyi, 
  usually 
  9 
  : 
  4. 
  

  

  Habitat 
  : 
  On 
  Ekebergia 
  sp. 
  5 
  Durban 
  ; 
  collected 
  by 
  C. 
  Fuller, 
  July 
  1915. 
  

  

  Collection 
  No. 
  : 
  B. 
  186. 
  

  

  