﻿102 
  CHAS. 
  K. 
  BRAIN. 
  

  

  158. 
  Chionaspis 
  (Dinaspis) 
  disfincta 
  (Leonardi) 
  (Plate 
  v, 
  fig. 
  170). 
  

   Dinaspis 
  distincta, 
  Leonardi, 
  Bol. 
  Sc. 
  R. 
  Agr. 
  Portici, 
  p. 
  213, 
  fig. 
  33, 
  1914. 
  

   Chionaspis 
  distorta, 
  Newst., 
  Bull. 
  Ent. 
  Res. 
  vii, 
  p. 
  377, 
  1917. 
  

  

  Scale 
  of 
  adult 
  $ 
  about 
  2 
  -2 
  mm. 
  long, 
  moderately 
  broad, 
  convex 
  and 
  roughened, 
  

   dull 
  white 
  or 
  greyish 
  white 
  in 
  colour, 
  with 
  exuviae 
  dark 
  orange-brown; 
  second 
  

   exuviae 
  covered. 
  

  

  Puparium 
  of 
  $ 
  robust, 
  buff-coloured 
  and 
  non-carinate, 
  with 
  yellowish 
  or 
  orange 
  

   exuviae. 
  Very 
  few 
  <J 
  specimens 
  are 
  present 
  in 
  the 
  large 
  amount 
  of 
  material 
  before 
  me 
  

   and 
  in 
  a 
  number 
  of 
  cases 
  the 
  $ 
  puparium 
  does 
  not 
  he 
  close 
  to 
  the 
  stem 
  in 
  the 
  usual 
  

   manner, 
  but 
  seems 
  to 
  be 
  attached 
  at 
  the 
  anterior 
  end 
  and 
  projects 
  outward 
  between 
  

   several 
  female 
  scales. 
  

   Adult 
  5 
  viviparous 
  ; 
  elongate, 
  narrow 
  in 
  front, 
  gradually 
  broadening 
  to 
  behind 
  

   the 
  middle, 
  to 
  which 
  point 
  the 
  body 
  is 
  highly 
  chitinised 
  ; 
  posterior 
  to 
  this 
  it 
  is 
  thin, 
  

   hyaline. 
  There 
  are 
  three 
  pairs 
  of 
  lobes, 
  which 
  are 
  more 
  heavily 
  chitinised 
  than 
  the 
  

   remainder 
  of 
  the 
  pygidium 
  : 
  L 
  x 
  broad, 
  inner 
  margins 
  converging 
  at 
  the 
  base, 
  faintly 
  

   trilobed 
  or 
  broadly 
  crenulate 
  ; 
  median 
  lobe 
  small, 
  L 
  2 
  and 
  L 
  3 
  small, 
  dz 
  triangular. 
  

   Antennae 
  with 
  one 
  long 
  flagellum 
  and 
  four 
  short 
  stout 
  spurs. 
  Circumgenital 
  glands 
  0. 
  

  

  Habitat 
  : 
  On 
  stems 
  of 
  Protea 
  liirta, 
  Pretoria 
  ; 
  collected 
  by 
  the 
  writer, 
  October 
  1914. 
  

   Professor 
  Newstead's 
  reference 
  " 
  Windersboom, 
  Transvaal," 
  should 
  be 
  Wonderboom, 
  

   Pretoria. 
  

  

  Collection 
  No. 
  : 
  163. 
  

  

  159. 
  Chionaspis 
  (Poliaspis) 
  carissae 
  (Ckll.) 
  (Plate 
  v, 
  fig. 
  164). 
  

  

  Poliaspis 
  carissae, 
  Ckll., 
  The 
  Entom. 
  xxxv, 
  p. 
  112, 
  1902 
  ; 
  Fernald, 
  Catalogue, 
  

  

  p. 
  243, 
  1903. 
  

   Scale 
  of 
  adult 
  $ 
  about 
  1-8 
  to 
  2 
  mm. 
  long, 
  usually 
  straight, 
  widest 
  shortly 
  behind 
  

   the 
  second 
  exuviae 
  and 
  somewhat 
  abruptly 
  narrowed 
  and 
  attenuated 
  posteriorly 
  ; 
  

   white, 
  glossy, 
  with 
  brown 
  exuviae. 
  

   Puparium 
  of 
  (J 
  white, 
  very 
  long, 
  distinctly 
  tri-carinate 
  ; 
  exuviae 
  almost 
  colourless. 
  

   Specimens 
  on 
  " 
  umkavoti 
  " 
  at 
  Durban 
  had 
  the 
  $ 
  scales 
  faintly 
  marked 
  by 
  trans- 
  

   verse 
  ridges 
  and 
  the 
  <J 
  puparia 
  with 
  a 
  pronounced 
  median 
  ridge. 
  

  

  The 
  body 
  of 
  the 
  adult 
  5 
  is 
  long, 
  narrow 
  in 
  front, 
  then 
  almost 
  parallel-sided 
  to 
  the 
  

   free 
  abdominal 
  segments, 
  with 
  the 
  posterior 
  margin 
  regularly 
  and 
  broadly 
  rounded. 
  

   The 
  median 
  portion 
  of 
  the 
  body 
  is 
  highly 
  chitinised 
  and 
  appears 
  brownish-yellow 
  in 
  

   mounted 
  specimens. 
  The 
  anterior 
  end 
  is 
  paler 
  in 
  colour, 
  and 
  the 
  free 
  abdominal 
  

   segments 
  and 
  the 
  pygidium 
  are 
  almost 
  colourless. 
  Circumgenital 
  glands 
  in 
  8 
  groups 
  : 
  

  

  3_ 
  4 
  3_4 
  3— 
  4 
  

  

  11—17 
  2—4 
  11—17 
  

   17-27 
  17—27 
  

  

  Remarks. 
  Professor 
  CockerelPs 
  original 
  description 
  is 
  as 
  follows 
  :— 
  

   " 
  $ 
  scale 
  similar 
  to 
  that 
  of 
  P. 
  cy 
  cadis, 
  but 
  perhaps 
  narrower. 
  Second 
  skin 
  paler, 
  

   as 
  in 
  cy 
  cadis. 
  

  

  " 
  $ 
  similar 
  to 
  P. 
  cy 
  cadis, 
  but 
  the 
  strongly 
  serrulate 
  reddish-brown 
  median 
  lobes 
  are 
  

   wide 
  apart, 
  the 
  interval 
  being 
  nearly 
  as 
  great 
  as 
  the 
  breadth 
  of 
  a 
  lobe 
  ; 
  the 
  second 
  lobe 
  

   consists 
  of 
  two 
  lobules, 
  of 
  which 
  the 
  inner 
  is 
  the 
  larger, 
  and 
  its 
  tip 
  projects 
  a 
  little 
  

  

  