﻿196 
  

  

  ROBERT 
  NEWSTEAD. 
  

  

  lanceolate 
  sclerite 
  (fig. 
  17, 
  d). 
  Margin 
  (fig. 
  17, 
  e) 
  with 
  nine 
  pairs 
  of 
  well 
  defined 
  para- 
  

   physes 
  and 
  a 
  few 
  rather 
  indistinct 
  ones 
  beyond 
  them 
  ; 
  those 
  arising 
  from 
  the 
  distal 
  

   lateral 
  portions 
  of 
  the 
  lobes 
  with 
  the 
  sides 
  almost 
  parallel 
  and 
  the 
  ends 
  more 
  or 
  less 
  

   suddenly 
  truncate. 
  Lobes 
  in 
  four 
  pairs; 
  the 
  2nd, 
  3rd 
  and 
  4th 
  pairs 
  dentate. 
  

   Length, 
  1-1*1 
  mm. 
  

  

  Male 
  Puparium. 
  Broadly 
  ovate, 
  with 
  the 
  ends 
  equally 
  rounded 
  ; 
  colour 
  dark 
  

   brown 
  or 
  blackish, 
  but 
  covered 
  with 
  the 
  epidermal 
  layer 
  of 
  the 
  bark 
  ; 
  larval 
  exuviae 
  

   black 
  and 
  more 
  or 
  less 
  exposed; 
  under 
  surface 
  dark 
  brown 
  or 
  piceous, 
  the 
  central 
  

   area 
  partly 
  covered 
  with 
  a 
  white 
  mealy 
  secretion. 
  Length, 
  0*5-0*6 
  mm. 
  

  

  Larva. 
  Broadly 
  ovate. 
  Antennae 
  of 
  five 
  segments, 
  of 
  which 
  the 
  5th 
  is 
  much 
  the 
  

   longest 
  and 
  distinctly 
  ringed. 
  Pygidium 
  (fig. 
  17,/) 
  with 
  two 
  pairs 
  of 
  finely 
  dentate 
  

   lobes 
  ; 
  the 
  median 
  pair 
  much 
  the 
  larger 
  and 
  converging 
  towards 
  the 
  middle 
  line. 
  

  

  British 
  Guiana 
  : 
  Enmore 
  Forest, 
  East 
  Coast, 
  Demerara, 
  on 
  Avicennia 
  nitida, 
  

   ix.1918 
  (67. 
  E. 
  Bodkin 
  and 
  H. 
  Harrison). 
  

  

  Aspidiotus 
  (Chrysomphalus) 
  umhoniferus, 
  sp. 
  now 
  

  

  Female 
  Puparium. 
  More 
  or 
  less 
  circular 
  to 
  broadly 
  pyriform 
  ; 
  flat, 
  thin, 
  and 
  

   somewhat 
  transparent 
  ; 
  pale 
  reddish-brown 
  to 
  pale 
  chocolate-brown. 
  Exuviae 
  

  

  Fig. 
  18. 
  Aspidiotus 
  (Chrysomphalus) 
  umhoniferus, 
  Newst., 
  

   sp. 
  n., 
  a, 
  larval 
  and 
  nymphal 
  pellicles 
  ; 
  b, 
  adult 
  $ 
  after 
  

   treatment 
  in 
  KOH 
  ; 
  c, 
  unrestorcd 
  $; 
  d, 
  antenna 
  of 
  $; 
  

  

  e, 
  pygidium 
  of 
  $. 
  

  

  central 
  or 
  subcentral 
  ; 
  the 
  first 
  nipple-like 
  and 
  black 
  when 
  denuded 
  ; 
  the 
  second, 
  

   sooty 
  brown. 
  Ventral 
  pellicle 
  very 
  delicate 
  and 
  composed 
  generally 
  of 
  concentric 
  

   rings. 
  Diameter, 
  1*6-2 
  mm. 
  

  

  Male 
  Puparium. 
  Elongate 
  ovate, 
  slightly 
  narrowed 
  posteriorly. 
  Colour 
  similar 
  

   to 
  that 
  of 
  the 
  female. 
  Length, 
  1 
  mm. 
  

  

  Female 
  (fig. 
  18, 
  b, 
  c). 
  Very 
  broadly 
  pyriform 
  ; 
  width 
  of 
  cephalothorax 
  slightly 
  

   greater 
  than 
  the 
  entire 
  length 
  of 
  the 
  body 
  ; 
  metathorax 
  with 
  a 
  relatively 
  large, 
  

   blunt, 
  marginal 
  tubercle, 
  which, 
  together 
  with 
  the 
  margin 
  below 
  it, 
  is 
  strongly 
  

  

  