202 Transactions.—Zoology. 
The puparium is yellowish-brown or dirty white, flat, roughly pear- 
shaped, thin in texture. The discarded pellicle of the first stage occupies 
the broad end of the pear; that of the second nearly fills the puparium. 
This second pellicle is different in shape from those of other species. 
Instead of being oval in shape with a regularly curved outline, it is nearly 
identical with the form of the adult female. Its cephalic and thoracic 
portions are very large, oval, and smooth; at the point corresponding to 
the metathorax are two prominent lobes, triangular, with rounded angles, 
the apex of each turned slightly outwards. The outline then descends with 
three or four other smaller lobes to the extremity of the abdomen. Plate 
VI., fig. 10b, shows the appearance of this pellicle. 
The adult female would appear to be, in its earlier state, as large as the 
second pellicle, that is, filling the puparium or nearlyso. In the specimens 
which I obtained the female had begun in every instance to lay her eggs, 
and was gradually shrivelling up. Her appearance is shown in plate VL, 
fig.10a. It will be seen that the lobes visible in the pellicle are here absent, 
but I am not sure whether this is not the effect of the shrivelling of the 
body. 
The cephalic region is still proportionately very large. The abdomen is 
conical, the sides broken to within a short distance of the extremity by 
sharp serrations, between which are triangular scaly hairs. There are no 
groups of spinnerets, and only a few scattered single ones. 
The puparium of the male is long, narrow, whitish, and with the 
appearance of a semi-cylinder lying upon a plane base. The perfect insect, 
in general appearance, resembles the male of Diaspis boisduvalii; but the 
abdomen is not nearly so long, and the tubular sheath of the abdominal 
spike is much smaller, being nearly globular. The antenne are much the 
same as in D. boisduvalii. The thoracic band occupies about half the width. 
This species appears to be very subject to fungoid growth. In dealing 
with the succeeding families of Lecanide and Coccide, we shall find that 
very many of their species are subject to fungus; but in the Diaspide, so 
far as I have been able to observe, this is not the case. Diaspis gigas, how- 
ever, on the branch of Atherosperma, which I received, was in several 
instances entirely overgrown by a fungus which appeared to me to belong 
to the Physomycetous Order and family Antennariei. In one instance this 
growth, which was clearly attached to the puparium, extended nearly an 
inch in every direction round it. 
4. Diaspis —— 
©) Plate VI., fig. 10e. 
On the same tree, Atherosperma, I found a Diaspis which may perhaps 
be an abnormal form of the last species, perhaps distinct. The puparium 
