252 
SUPPLEMENTARY NOTES ON THE COCCID or Cryton. 
By H. Ernest Green, I. E.S., Government ENTOMOLOGIST, 
WITH PLATES A—G. 
(Continued from page 76 of this Volume.) 
AONIDIA PERPLEXA,n. sp. (PI. E, figs. 19, 20.) 
Female puparium (fig, 19) oval, flat. Secretionary area greenish-grey, 
semi-transparent, completely covering the pellicles except over a circular spot 
in the centre of the first, where the surface of the pellicle is exposed. The 
first pellicle is really almost colourless and transparent ; but appears black, 
the colour of the second pellicle showing through it, Second pellicle black, 
the colour partially concealed by the thin layer of greyish secretion which 
extends as a moderately broad border beyond it, Extremity of second pel- 
licle with six prominent wedge-shaped lobes and some stout squames between 
them, Size of second pellicle 1:20 by 075mm, Length of complete pupa- 
rium 1°75 mm. Breadth 1°25 mm, 
Male puparinm greyish, semi-transparent, Pellicle very pale yellow : a cir- 
cular spot in the centre exposed, Length 150 mm, Breadth 1 mm. 
Aduit female broadly rounded in front, with two minute indentations on 
the anterior margin, immediately in front of the rostrum, Antenne, each 
consisting of a tubercle with one longish and one very short hair, placed a 
little within the margin. Rostrum large and conspicuous. Spiracles without 
parastigmatic glands. Margin of abdominal segments not fringed, but with 
one or two longish spines, Pygidium (fig. 20) rounded, with a conspicuous 
truncate median prominence bearing three small spines. Two conical promi- 
nences at intervals on each side, each with one longish and two very small 
spines. Immediately lateral of the several prominences are the six lobes 
which are rather inconspicuous on account of their pale colour and trans- 
parency. Without careful adjustment of the light the true lobes may be 
overlooked and the five prominences mistaken for them, Hach lobe is short 
bat very broad, sloping downwards from the side of the adjacent prominence 
to the margin : the free edge minutely serrate, Analand genital apertures 
situate about the centre of the pygidium, on the dorsal and ventral surfaces, 
respectively. Length 075 mm, Breadth 0°75 mm. 
Adult male not observed. 
Habitat :—On the under surface of leaves of Messua ferrea, in the Botanic 
Gardens, Peradeniya. Placed singly by the side of the midrib. 
This insect occurs on the same leaves as the preceding one, ( A. mesue ) ; 
put the two species, are confined to the opposite surfaces of the leaves, 
Their structural characters are quite distinct. 
AoNIDIA PLANCHONIOIDES, n. sp. (PI. E, figs. 21, 22, 23.) 
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