﻿175 
  

  

  OBSERVATIONS 
  ON 
  SCALE-INSECTS 
  (COCCIDAE).— 
  VI. 
  

   By 
  Robert 
  Newstead, 
  F.R.S., 
  

   The 
  School 
  of 
  Tropical 
  Medicine, 
  the 
  University, 
  Liverpool. 
  

  

  (Plate 
  XVI.) 
  

  

  Giypeococcus, 
  gen. 
  now 
  

  

  Female. 
  Dorsum 
  nude 
  and 
  densely 
  chitinised. 
  Marsupium 
  occupying 
  practically 
  

   the 
  whole 
  of 
  the 
  interior. 
  Venter 
  (sternites) 
  remaining 
  attached 
  to 
  the 
  food-plant. 
  

   Legs 
  and 
  antennae 
  present. 
  Cephalic 
  margin 
  with 
  a 
  strongly 
  developed 
  clypeus,, 
  

   lying 
  prone 
  over 
  the 
  mentum. 
  Abdominal 
  stigmata 
  present. 
  

  

  Larva 
  of 
  the 
  I 
  eery 
  a 
  type, 
  and 
  with 
  several 
  pairs 
  of 
  abdominal 
  stigmata. 
  

  

  Type, 
  C. 
  hempeli, 
  Ckll. 
  

  

  Giypeococcus 
  hempeli, 
  Ckll. 
  

  

  Icerya 
  (Crypticerya) 
  hempeli, 
  Ckll., 
  Can. 
  Ent. 
  xxxi, 
  p. 
  43 
  (1899). 
  

  

  Crypticerya 
  hempeli, 
  Hemp., 
  Rev. 
  Mus. 
  Paul, 
  iv, 
  p. 
  376 
  (1900). 
  

  

  Female 
  adult 
  (PL 
  xvi, 
  fig. 
  1). 
  Sphaeroid 
  and 
  hollow 
  at 
  gestation, 
  the 
  marsupium 
  

   filling 
  practically 
  the 
  whole 
  of 
  the 
  interior. 
  Integument 
  densely 
  chitinised, 
  faintly 
  

   ribbed 
  and 
  polished 
  ; 
  very 
  dark 
  plum-coloured,"with 
  a 
  delicate 
  " 
  bloom-like 
  " 
  secretion, 
  

   the 
  segmentation 
  of 
  the 
  dorsum 
  indicated 
  by 
  faint 
  blackish 
  interrupted 
  lines. 
  Venter 
  

  

  Fig. 
  1. 
  Giypeococcus 
  hempeli, 
  Ckll., 
  $ 
  ; 
  a, 
  the 
  relative 
  position 
  of 
  the 
  various 
  

   appendages 
  on 
  the 
  anterior 
  portion 
  of 
  the 
  venter 
  : 
  an, 
  antenna 
  ; 
  cl, 
  clypeus 
  ; 
  

   m.sh, 
  membranous 
  sheath 
  enclosing 
  the 
  buccal 
  filaments 
  ; 
  b, 
  antenna 
  of 
  larva 
  ; 
  

   c, 
  tarsus 
  of 
  larva 
  ; 
  d, 
  gland-pores 
  and 
  hairs 
  on 
  venter 
  of 
  $ 
  ; 
  e, 
  dorsal 
  spines 
  of 
  

  

  larva 
  ; 
  /, 
  gland- 
  pores 
  of 
  larva. 
  

  

  membranous, 
  resting 
  on 
  a 
  thin 
  layer 
  of 
  hard 
  resin-like 
  secretion, 
  segmentation 
  distinct^ 
  

  

  Mentum 
  biarticulate, 
  the 
  " 
  filaments 
  " 
  enclosed 
  in 
  a 
  membranous 
  sheath 
  (m.sh. 
  in 
  

  

  (C605) 
  a 
  

  

  