﻿178 
  ROBERT 
  NEWSTEAD. 
  

  

  segmentation 
  distinct. 
  Venter 
  hollow, 
  but 
  filled 
  with 
  loose 
  white 
  flocculent 
  material. 
  

  

  in 
  which 
  the 
  eggs 
  are 
  laid 
  and 
  the 
  larvae 
  subsequently 
  hatch. 
  Vaginal 
  orifice 
  

  

  transversely 
  linear, 
  and 
  without 
  a 
  secretionary 
  operculum 
  or 
  an 
  invaginated 
  mar- 
  

  

  supium. 
  The 
  integument 
  of 
  the 
  dorsum, 
  after 
  long 
  maceration 
  in 
  KOH, 
  becomes 
  

  

  pale 
  brown 
  in 
  colour 
  ; 
  but 
  partly 
  retains 
  its 
  hard 
  and 
  somewhat 
  brittle 
  nature. 
  

  

  Antennae 
  with 
  10-11 
  segments 
  ; 
  4th 
  segment 
  the 
  shortest, 
  but 
  its 
  articulation 
  

  

  with 
  the 
  5th 
  is 
  often 
  incomplete, 
  though 
  the 
  constriction 
  between 
  these 
  segments 
  

  

  is 
  well 
  marked 
  and 
  relatively 
  deep. 
  Eyes 
  in 
  the 
  form 
  of 
  a 
  truncated 
  cone. 
  

  

  Legs 
  rather 
  sparsely 
  hirsute, 
  but 
  normal 
  in 
  shape. 
  Compound 
  gland-pores 
  

  

  of 
  the 
  dorsal 
  pits 
  relatively 
  large, 
  rather 
  narrowly 
  ovate, 
  and 
  collectively 
  forming 
  

  

  a 
  rather 
  coarse 
  and 
  irregular 
  reticulation. 
  Dorsal 
  gland-pores 
  of 
  the 
  usual 
  

  

  multilocular 
  type 
  ; 
  they 
  are 
  fairly 
  numerous 
  and 
  more 
  or 
  less 
  evenly 
  distributed 
  ; 
  

  

  those 
  on 
  the 
  marginal 
  tubercles 
  are 
  surrounded 
  by 
  a 
  radial 
  and 
  somewhat 
  petaloid 
  

  

  pattern, 
  due 
  apparently 
  to 
  the 
  thickening 
  of 
  the 
  integument. 
  Ventral 
  gland-pores 
  

  

  similar 
  to 
  those 
  of 
  the 
  dorsum, 
  but 
  slightly 
  larger 
  and 
  with 
  an 
  ovate 
  central 
  pore 
  ; 
  

  

  they 
  are 
  thickly 
  packed 
  together 
  at 
  the 
  margins 
  and 
  also 
  on 
  the 
  marginal 
  tubercles. 
  

  

  Anus 
  surrounded 
  by 
  a 
  broad 
  concentric 
  band 
  of 
  dark 
  chitin, 
  which 
  is 
  thickly 
  studded 
  

  

  with 
  simple, 
  more 
  or 
  less 
  circular 
  gland-pores. 
  Fine 
  slender 
  hairs 
  are 
  scattered 
  over 
  

  

  both 
  sides 
  of 
  the 
  body 
  ; 
  marginal 
  hairs 
  also 
  slender, 
  but 
  longer 
  than 
  those 
  on 
  other 
  

  

  parts 
  of 
  the 
  body. 
  Length, 
  inclusive 
  of 
  the 
  finger-like 
  process 
  on 
  the 
  cephalic 
  margin, 
  

  

  6-9 
  mm. 
  

  

  Larva. 
  This 
  is 
  of 
  the 
  usual 
  form. 
  Five 
  of 
  the 
  long 
  hairs 
  on 
  the 
  terminal 
  segment 
  

   of 
  the 
  antennae 
  equalling 
  the 
  length 
  of 
  the 
  body. 
  Sides 
  of 
  the 
  abdomen 
  with 
  

   numerous 
  long 
  fine 
  hairs 
  ; 
  anal 
  hairs 
  or 
  bristles 
  apparently 
  in 
  three 
  pairs, 
  of 
  which 
  

   the 
  central 
  pair 
  are 
  much 
  the 
  more 
  slender 
  and 
  shorter 
  ; 
  outer 
  pairs 
  (2nd 
  and 
  3rd) 
  

   relatively 
  stout 
  and 
  longer 
  than 
  the 
  body. 
  

  

  Uganda 
  : 
  Damba 
  Isl., 
  Sesse 
  Islands, 
  Lake 
  Victoria 
  ; 
  on 
  Baikea 
  eminii, 
  8.x. 
  1912 
  

   (C. 
  C. 
  Gowdey). 
  

  

  Pseudococcus 
  inquilinus, 
  sp. 
  nov. 
  

  

  Female, 
  adult. 
  External 
  covering 
  and 
  lateral 
  appendages 
  destroyed 
  by 
  the 
  

   medium 
  in 
  which 
  the 
  specimens 
  were 
  preserved. 
  Form, 
  when 
  denuded, 
  similar 
  

   to 
  that 
  of 
  P. 
  longispinus, 
  Targ. 
  With 
  16-17 
  pairs 
  of 
  cerarii 
  ; 
  anal 
  pair 
  with 
  two, 
  

   the 
  others 
  with 
  from 
  4 
  to 
  7 
  sharply 
  conical 
  spines. 
  Lateral 
  cerarii 
  (fig. 
  3, 
  c) 
  with 
  

   2-3 
  auxiliary 
  setae 
  and 
  numerous, 
  obtusely 
  triangular 
  pores 
  rather 
  closely 
  grouped 
  

   together 
  near 
  the 
  cerarii, 
  but 
  scattered 
  and 
  merging 
  into 
  the 
  body-pores 
  beyond. 
  

   Anal 
  lobe 
  cerarii 
  (fig. 
  3, 
  a) 
  surrounded 
  by 
  a 
  small 
  circular 
  chitinised 
  area 
  ; 
  ventral 
  

   surface 
  of 
  each 
  lobe 
  (fig. 
  3, 
  b) 
  with 
  a 
  broad 
  and 
  somewhat 
  rectangular 
  chitinised 
  

   area. 
  Anal 
  ring 
  well 
  formed 
  ; 
  setae 
  (fig. 
  3, 
  e) 
  a 
  very 
  little 
  shorter 
  than 
  the 
  anal 
  

   lobe 
  setae. 
  Dorsal 
  body 
  setae 
  (fig. 
  3, 
  d) 
  numerous, 
  slenderly 
  spinose, 
  with, 
  in 
  

   many 
  instances, 
  flagellate 
  tips. 
  Obtusely 
  triangular 
  pores 
  very 
  numerous, 
  inter- 
  

   mingled 
  with 
  larger 
  simple 
  pores 
  ; 
  and 
  on 
  the 
  last 
  few 
  segments 
  of 
  the 
  abdomen 
  a 
  

   few 
  multilocular 
  pores 
  ; 
  tubular 
  ducts 
  very 
  short 
  and 
  scanty 
  (?) 
  the 
  rims 
  ( 
  of 
  which 
  

   are 
  chitinised. 
  Dorsal 
  osteoles 
  large, 
  in 
  two 
  pairs. 
  Legs 
  relatively 
  stout. 
  

  

  The 
  young 
  adult 
  female 
  resembles 
  the 
  old 
  adult, 
  but 
  has 
  the 
  gland-pores 
  more 
  

   closely 
  packed 
  together. 
  

  

  