﻿124 
  CHAS. 
  K. 
  BRAIN. 
  

  

  Caudal 
  filaments 
  (2) 
  long, 
  from 
  1J 
  to 
  1 
  J 
  times 
  the 
  length 
  of 
  the 
  body. 
  These 
  are 
  

   dense 
  white, 
  slender, 
  and 
  in 
  life 
  widely 
  divergent. 
  The 
  antennae 
  are 
  10-jointed, 
  

   the 
  joints, 
  when 
  freshly 
  mounted, 
  measuring 
  approximately 
  :— 
  (1) 
  30, 
  (2) 
  58, 
  (3) 
  100, 
  

   (4) 
  92, 
  (5) 
  85, 
  (6) 
  68, 
  (7) 
  58, 
  (8) 
  68, 
  (9) 
  50, 
  (10) 
  65//. 
  

  

  Habitat 
  : 
  On 
  orange, 
  Qumba, 
  C. 
  P. 
  On 
  pomegranate, 
  Ladysmith, 
  Natal. 
  Also 
  

   on 
  native 
  trees 
  at 
  East 
  London 
  and 
  Grahamstown, 
  C. 
  P., 
  Natal 
  and 
  Transvaal. 
  

  

  Collection 
  Nos. 
  : 
  71, 
  75, 
  325. 
  

  

  184. 
  Tachardia 
  minor, 
  sp. 
  n. 
  (Plate 
  xii, 
  fig. 
  227). 
  

  

  $ 
  test 
  1*5 
  to 
  2 
  mm. 
  in 
  diameter, 
  rich 
  castaneous 
  brown, 
  with 
  the 
  larval 
  cast 
  

   conspicuous. 
  Viewed 
  from 
  above 
  the 
  test 
  is 
  broad 
  heart-shaped 
  ; 
  edges 
  of 
  caudal 
  

   orifice 
  slightly 
  elevated 
  ; 
  spiracular 
  openings 
  obsolete. 
  In 
  the 
  material 
  examined 
  the 
  

   $ 
  tests 
  always 
  appeared 
  singly 
  on 
  the 
  twig?, 
  never 
  massed 
  as 
  in 
  T. 
  actinella. 
  

  

  ^ 
  puparium 
  about 
  1 
  mm. 
  long, 
  varying 
  in 
  colour 
  from 
  pale 
  yellowish 
  brown 
  to 
  deep 
  

   castaneous 
  ; 
  dorsal 
  area 
  strongly 
  ridged. 
  

  

  When 
  cleared 
  and 
  mounted 
  the 
  adult 
  $ 
  is 
  almost 
  circular 
  and 
  very 
  transparent 
  ; 
  

   the 
  mouth-parts 
  are 
  comparatively 
  large, 
  averaging 
  about 
  170// 
  long 
  by 
  82// 
  at 
  their 
  

   greatest 
  width. 
  On 
  each 
  side, 
  extending 
  backward 
  from 
  the 
  middle 
  of 
  the 
  mouth- 
  

   parts, 
  is 
  a 
  series 
  of 
  three 
  small 
  conical 
  spines, 
  which 
  appear 
  as 
  though 
  they 
  might 
  

   indicate 
  the 
  extreme 
  rudiments 
  of 
  legs. 
  The 
  antennae 
  average 
  60// 
  in 
  length 
  and 
  are 
  

   obscurely 
  3 
  or 
  4- 
  jointed. 
  Lac 
  plates 
  varying 
  from 
  57 
  to 
  68// 
  in 
  length 
  ; 
  about 
  48// 
  

   broad 
  ; 
  with 
  few 
  glands, 
  the 
  number 
  varying 
  from 
  14 
  to 
  28 
  in 
  specimens 
  examined. 
  

   Spine 
  about 
  68ju 
  long 
  and 
  54// 
  across 
  the 
  base, 
  distinctly 
  funnel-shaped, 
  narrowing 
  at 
  

   about 
  half 
  its 
  length. 
  Chitinous 
  anal 
  plate 
  almost 
  semi-circular, 
  with 
  the 
  basal 
  

   portion 
  rugose 
  and 
  its 
  apex 
  four 
  lobed. 
  Anterior 
  spiracle 
  with 
  16 
  simple 
  glands. 
  

  

  Habitat 
  : 
  On 
  rhenosterbosch 
  (Elytropappus 
  rhinocerotis, 
  Less.) 
  ; 
  collected 
  by 
  C. 
  P. 
  

   v. 
  d. 
  Merwe, 
  Montague, 
  C. 
  P., 
  November 
  1914. 
  

  

  Collection 
  No. 
  : 
  25. 
  

  

  185. 
  Tachardia 
  karroo, 
  sp. 
  n. 
  (Plate 
  xii, 
  fig. 
  230). 
  

  

  5 
  test 
  2 
  "5 
  to 
  3 
  '5 
  mm. 
  in 
  diameter, 
  sometimes 
  single, 
  but 
  usually 
  massed 
  together 
  

   on 
  the 
  thicker 
  stems 
  of 
  the 
  plant. 
  Somewhat 
  similar 
  to 
  T. 
  minor 
  but 
  more 
  spherical, 
  

   larger 
  and 
  paler 
  in 
  colour. 
  In 
  a 
  number 
  of 
  cases 
  the 
  test 
  is 
  semitransparent, 
  deep 
  

   amber-yellow, 
  with 
  three 
  distinct 
  pale 
  lines 
  radiating 
  from 
  the 
  median 
  dorsal 
  ridge 
  to 
  

   the 
  margins 
  in 
  the 
  form 
  of 
  a 
  broad 
  Y. 
  

  

  (J 
  puparium 
  comparatively 
  short, 
  deep 
  chestnut-biown. 
  

  

  When 
  cleared 
  and 
  mounted 
  the 
  following 
  characters 
  may 
  be 
  determined 
  : 
  — 
  -The 
  

   antennae 
  are 
  obscurely 
  3- 
  jointed, 
  about 
  105// 
  long 
  and 
  27/* 
  wide 
  at 
  the 
  base. 
  The 
  

   apical 
  joint 
  has 
  at 
  its 
  tip 
  3 
  or 
  4 
  short 
  spines. 
  The 
  anterior 
  spiracle 
  has 
  a 
  few 
  (2 
  or 
  3) 
  

   simple 
  glands. 
  Lac 
  plates 
  about 
  120// 
  long 
  by 
  110// 
  broad, 
  with 
  62 
  to 
  84 
  gland 
  

   openings. 
  Spine 
  about 
  90// 
  long 
  and 
  78/i 
  across 
  the 
  base 
  ; 
  deep 
  funnel-shaped, 
  

   narrowing 
  about 
  one-third 
  to 
  one-fourth 
  its 
  length 
  from 
  the 
  tip. 
  Anal 
  plate 
  broader 
  

   than 
  long 
  ; 
  basal 
  portion 
  coarsely 
  wrinkled, 
  apical 
  part 
  with 
  4 
  small 
  pointed 
  lobes. 
  

  

  Habitat 
  : 
  On 
  rhenosterbosch 
  (Elytropappus 
  rhinocerotis, 
  Less.) 
  in 
  association 
  

   with 
  T. 
  minor 
  ; 
  collected 
  by 
  C. 
  P. 
  v. 
  d. 
  Merwe, 
  Montague, 
  C. 
  P., 
  November 
  1914. 
  

  

  Collection 
  No. 
  : 
  324. 
  

  

  