﻿260 
  A. 
  RUTHERFORD. 
  

  

  It 
  seems 
  sufficiently 
  distinct 
  to 
  warrant 
  its 
  being 
  considered 
  a 
  separate 
  species. 
  

   The 
  number 
  of 
  circumgenital 
  glands 
  is 
  much 
  in 
  excess 
  of 
  anything 
  I 
  have 
  seen 
  

   recorded 
  for 
  A. 
  pentagona, 
  for 
  which 
  Green 
  gives 
  (12-25) 
  (30-46) 
  (28-38) 
  ; 
  the 
  plates, 
  

   too, 
  are 
  more 
  numerous. 
  

  

  The 
  insect 
  is 
  preyed 
  on 
  by 
  a 
  small, 
  light-brown 
  Coccinellid 
  with 
  a 
  Pseudococcus- 
  

   like 
  larva, 
  and 
  less 
  so 
  by 
  Chilochorus 
  circumdatus, 
  and 
  is 
  parasitised 
  by 
  a 
  small, 
  

   black 
  Chalcid. 
  

  

  Aulacaspis 
  myristicae, 
  sp. 
  nov. 
  

  

  Secretion 
  of 
  female 
  scale 
  coarse, 
  white 
  or 
  brown 
  — 
  the 
  latter 
  colour 
  being 
  due 
  to 
  

   a 
  covering 
  of 
  hairs 
  of 
  the 
  plant 
  — 
  -oval 
  in 
  outline 
  and 
  enclosing 
  the 
  second 
  exuvium 
  ; 
  

   exuviae 
  reddish-brown. 
  Adult 
  female 
  pear-shaped 
  ; 
  the 
  median 
  lobes 
  set 
  in 
  a 
  

   slight 
  notch, 
  short, 
  narrowed 
  at 
  base, 
  expanded 
  disto-laterally 
  and 
  broadly 
  rounded 
  

   at 
  apex. 
  The 
  second 
  lobe 
  is 
  duplex 
  ; 
  the 
  lateral 
  half 
  is 
  conspicuous 
  and 
  distinctly 
  

   rounded 
  at 
  apex 
  and 
  is 
  of 
  much 
  the 
  same 
  shape 
  as 
  the 
  mesal 
  half. 
  In 
  Diaspis 
  

   barberi, 
  Gr., 
  which 
  this 
  insect 
  somewhat 
  resembles, 
  the 
  outer 
  lobe 
  of 
  the 
  first 
  lateral 
  

   lobe 
  is 
  said 
  to 
  be 
  " 
  very 
  small, 
  conical 
  " 
  (Mem. 
  Dept. 
  Agr. 
  Ind., 
  ii, 
  no. 
  2). 
  Laterad 
  

   of 
  the 
  second 
  lobe 
  is 
  a 
  very 
  prominent 
  gland-pore 
  and 
  laterad 
  of 
  this 
  a 
  faintly 
  

   chitinised, 
  bi-lobed 
  projection, 
  each 
  part 
  serrated 
  on 
  the 
  margin. 
  Where 
  the 
  two 
  

   rows 
  of 
  dorsal 
  pores 
  meet 
  the 
  margin 
  the 
  pygidium 
  bears 
  conspicuous 
  projections. 
  

   There 
  is 
  a 
  group 
  of 
  19 
  or 
  20 
  parastigmatic 
  glands 
  associated 
  with 
  the 
  anterior 
  

   spiracles 
  ; 
  the 
  posterior 
  spiracles 
  are 
  without 
  such 
  glands. 
  There 
  are 
  no 
  dorsal 
  

   pores 
  immediately 
  laterad 
  of 
  the 
  circumgenital 
  pores. 
  (Such 
  pores 
  are 
  figured 
  as 
  

   present 
  in 
  D. 
  barberi, 
  Gr., 
  and 
  D. 
  fagraeae, 
  Gr.). 
  The 
  abdominal 
  segments 
  in 
  front 
  

   of 
  the 
  pygidium 
  bear 
  numerous 
  dorsal 
  pores. 
  The 
  circumgenital 
  pores 
  are 
  in 
  five 
  

   grape-like 
  groups. 
  Four 
  individuals 
  showed 
  pores 
  as 
  follows 
  : 
  — 
  17 
  (37 
  and 
  34) 
  (36 
  

   and 
  56, 
  these 
  56 
  somewhat 
  scattered) 
  ; 
  14 
  (32 
  and 
  28) 
  (30 
  and 
  32) 
  ; 
  17 
  (32 
  and 
  34) 
  

   (26 
  and 
  30) 
  ; 
  15 
  (32 
  and 
  34) 
  (32 
  and 
  34). 
  There 
  are 
  two 
  plate-like 
  projections 
  

   associated 
  with 
  the 
  pore 
  laterad 
  of 
  the 
  median 
  lobes 
  ; 
  other 
  plates 
  1, 
  2-3, 
  4-8, 
  9-11. 
  

  

  On 
  midrib 
  of 
  leaf 
  of 
  Myristica 
  laurifolia 
  (Wild 
  Nutmeg), 
  15. 
  vii. 
  1913. 
  

  

  This 
  insect 
  resembles 
  somewhat 
  D. 
  fagraeae, 
  Gr., 
  but 
  the 
  plates 
  in 
  the 
  fourth 
  space 
  

   are 
  more 
  numerous, 
  the 
  circumgenital 
  pores 
  are 
  more 
  numerous, 
  D. 
  fagraeae 
  

   having 
  (8-10) 
  (15-18) 
  (20-30), 
  and 
  the 
  median 
  lobes 
  are 
  of 
  a 
  different 
  shape. 
  

  

  As 
  compared 
  with 
  D. 
  barberi, 
  Gr., 
  the 
  median 
  lobes 
  are 
  not 
  expanded 
  distally 
  

   on 
  both 
  sides, 
  but 
  only 
  laterally, 
  they 
  are 
  not 
  slightly 
  incised, 
  and 
  the 
  circumgenital 
  

   pores 
  and 
  the 
  plates 
  are 
  more 
  numerous, 
  D. 
  barberi 
  having 
  pores 
  as 
  follows 
  : 
  — 
  (6-9) 
  

   (18-23) 
  (19-23). 
  

  

  Pseudaonidia 
  oreodoxae, 
  sp. 
  nov. 
  

  

  The 
  scale 
  is 
  partly 
  concealed 
  underneath 
  the 
  bark 
  of 
  the 
  tree. 
  The 
  secretion 
  is 
  

   dark-brown, 
  the 
  exuviae 
  orange 
  ; 
  leaves 
  a 
  white 
  ventral 
  scale. 
  

  

  Adult 
  female 
  dark 
  purple, 
  flat 
  on 
  the 
  venter, 
  convex 
  dorsally. 
  There 
  are 
  two 
  

   smooth 
  shining 
  areas 
  at 
  the 
  base 
  of 
  the 
  abdomen 
  on 
  the 
  venter, 
  one 
  on 
  each 
  side. 
  

   There 
  is 
  a 
  slight 
  constriction 
  one 
  segment 
  caudad 
  and 
  another 
  five 
  segments 
  caudad 
  

   of 
  the 
  main 
  constriction. 
  The 
  median 
  lobes 
  are 
  the 
  largest 
  and 
  are 
  usually 
  broadly 
  

   rounded 
  ; 
  they 
  may 
  be 
  slightly 
  notched 
  on 
  the 
  mesal 
  and 
  lateral 
  sides. 
  The 
  second 
  

  

  