﻿110 
  CHAS. 
  K. 
  BRAIN. 
  

  

  167. 
  Asterolecanium 
  variolosum, 
  Eatz. 
  (Plate 
  vii, 
  fig. 
  190 
  ; 
  Plate 
  viii, 
  fig. 
  193). 
  

   Asterolecanium 
  quercicola, 
  Sign, 
  et 
  Auctt. 
  (nee 
  Lecanium 
  quercicola, 
  Bouche). 
  

   Coccus 
  variolosus, 
  Ratz., 
  Tharander 
  Jahrbuch, 
  xx, 
  p. 
  187, 
  1870 
  (not 
  seen 
  ; 
  fide 
  

   Judeich 
  & 
  Nitsche). 
  

  

  Lecanium 
  quercus, 
  Altum 
  (nee 
  Linne), 
  Forstzoologie, 
  iii, 
  Insecten, 
  p. 
  365, 
  1881. 
  

   Coccus 
  variolosus, 
  " 
  Ratzeburg 
  MS.," 
  Hagen, 
  Can. 
  Ent. 
  xix, 
  p. 
  60, 
  1887 
  (no 
  

   description). 
  

  

  Planchonia 
  fimbriata 
  (Boyer) 
  Maskell, 
  Extract, 
  Trans. 
  N. 
  Z. 
  Inst., 
  1891, 
  p. 
  63. 
  

   Coccus 
  quercicola, 
  Sign., 
  Judeich 
  & 
  Nitsche, 
  Lehrb. 
  Mitth. 
  Forstins., 
  ii, 
  p. 
  1252, 
  1895. 
  

   Planchonia 
  quercicola 
  (Bouche) 
  Maskell, 
  Trans. 
  N. 
  Z. 
  Inst, 
  xxviii, 
  p. 
  396, 
  1895. 
  

   Asterodiaspis 
  variolosus, 
  Boas, 
  Dansk. 
  Forstzoologie, 
  p. 
  395, 
  1896. 
  

  

  Planchonia 
  (Asterolecanium) 
  quercicola 
  (Bouche) 
  Froggatt, 
  Dept. 
  Ag. 
  N.S.W. 
  

  

  No. 
  175, 
  p. 
  6, 
  1897. 
  

   Asterodiaspis 
  quercicola 
  (Bouche) 
  Newstead, 
  Coccidae 
  of 
  Brit. 
  Is. 
  (Ray 
  Soc.) 
  i, 
  pp. 
  

  

  1, 
  14, 
  34, 
  35, 
  36 
  and 
  39, 
  1900. 
  

   Asterolecanium 
  variolosum, 
  Newst., 
  Mon. 
  Brit. 
  Cocc. 
  ii, 
  p. 
  156, 
  1902. 
  

  

  Ova 
  pale 
  yellow 
  to 
  light 
  brownish 
  yellow 
  according 
  to 
  age 
  ; 
  about 
  190^ 
  long 
  and 
  

   115/1 
  broad. 
  

  

  Larva, 
  just 
  emerged, 
  pale 
  yellow, 
  with 
  legs 
  and 
  antennae 
  hyaline, 
  about 
  260/^ 
  long 
  

   and 
  145/< 
  broad. 
  Antennae 
  obscurely 
  six-jointed. 
  Caudal 
  lobes 
  small, 
  tuberculate, 
  

   each 
  with 
  one 
  long 
  seta, 
  averaging 
  about 
  the 
  same 
  length 
  as 
  the 
  antennae. 
  Eyes 
  

   prominent, 
  lemon-yellow. 
  

  

  In 
  the 
  half-grown 
  female 
  the 
  colour 
  of 
  the 
  insect 
  is 
  clearly 
  visible 
  through 
  the 
  thin 
  

   transparent 
  test. 
  It 
  is 
  then 
  0*7 
  mm. 
  long 
  and 
  0*55 
  mm. 
  broad, 
  caramel-brown, 
  with 
  

   a 
  distinct 
  white 
  fringe 
  and 
  distinct 
  transverse 
  ridges 
  on 
  the 
  dorsum 
  (fig. 
  190). 
  

  

  At 
  maturity 
  the 
  adult 
  $ 
  completely 
  fills 
  the 
  test, 
  which 
  has 
  become 
  stouter 
  and 
  

   yellower 
  but 
  is 
  still 
  transparent 
  enough 
  to 
  allow 
  the 
  greenish 
  brown 
  colour 
  of 
  the 
  

   adult 
  insect 
  to 
  show 
  through 
  plainly. 
  At 
  this 
  stage 
  the 
  tests 
  vary 
  in 
  size 
  from 
  1 
  "2 
  

   mm. 
  long 
  by 
  0*9 
  mm. 
  broad 
  and 
  0*26 
  mm. 
  high 
  to 
  1*5 
  mm. 
  long 
  by 
  1*3 
  mm. 
  broad 
  

   and 
  0'6 
  mm. 
  high. 
  As 
  the 
  eggs 
  are 
  matured 
  and 
  laid 
  the 
  body 
  of 
  the 
  female 
  shrinks 
  

   and 
  the 
  posterior 
  end 
  of 
  the 
  cyst 
  serves 
  as 
  an 
  ovisac. 
  At 
  this 
  stage 
  the 
  test 
  is 
  

   regularly 
  domed 
  and 
  practically 
  smooth, 
  while 
  the 
  fringe 
  has 
  usually 
  more 
  or 
  less 
  

   worn 
  away. 
  The 
  line 
  indicating 
  the 
  end 
  of 
  the 
  shrunken 
  body 
  is 
  often 
  very 
  distinct, 
  

   so 
  that 
  the 
  front 
  half 
  of 
  the 
  test 
  appears 
  deep 
  brown 
  and 
  the 
  hind 
  half 
  pale 
  yellow. 
  

  

  After 
  clearing, 
  staining 
  and 
  mounting, 
  the 
  adult 
  $ 
  is 
  almost 
  circular, 
  with 
  the 
  anal 
  

   extremity 
  slightly 
  narrowed. 
  The 
  anal 
  orifice 
  is 
  very 
  small 
  and 
  hairless, 
  with 
  two 
  

   small 
  spines, 
  one 
  on 
  either 
  side. 
  The 
  caudal 
  lobes 
  are 
  obsolete, 
  but 
  the 
  two 
  long 
  setae 
  

   persist 
  as 
  shown 
  in 
  fig. 
  193. 
  The 
  figure-8 
  glands 
  are 
  small, 
  in 
  a 
  single 
  series 
  all 
  round 
  

   the 
  body. 
  The 
  antennae 
  are 
  rudimentary, 
  with 
  one 
  long 
  and 
  one 
  short 
  spiny 
  hair 
  

   <fig. 
  193a). 
  

  

  Habitat 
  : 
  On 
  Quercus 
  sp., 
  Cape 
  Peninsula, 
  Elsenburg 
  (C. 
  P.), 
  Johannesburg, 
  Irene, 
  

   Pretoria 
  and 
  Vereeniging 
  (TvL). 
  

  

  Collection 
  No. 
  : 
  18. 
  

  

  