188 THE. AUSTRALIAN NATURALIST. 
NOTES ON INSECTS. 
By L. GaAuuarp. 
Tur Brown Passion Fruir Frog Hoppsr— 
Scotropora AUSTRALE. 
This small brown mottled winged ‘insect is provided with 
a pair of clippers on the anal segment like the Cicada, with 
which it is able to nip up both the bark and the woody tissue 
of the tendrils of the passion vine to such a depth as to en- 
able it to deposit its eggs right along the internal cavity. On 
examining the tendrils the rough incissions can be traced on 
the outside, and on splitting them down with a knife the tiny 
white oblong eggs can be seen neatly arranged along the central: 
cavity at intervals of about 1-30 of an inch. In one tendril 
I counted 72 eggs. The larvae, which hatch from these eggs, 
are tiny little brown creatures with a little tuft of white down 
on the anal segment. They feed on the sap of the plant which 
they obtain by means of a sucker with which they pierce the 
bark. They develop by a series of moults like an ordinary 
plant bug. 4 
Tur Green Passion Ving Frog Hopper, SipHanra Acuta. 
Although it belongs to a different genus, resembles Scolo- 
popa a good deal in shape, and in its nature and habits, but in 
its mode of egg laying it differs very widely. In this case the 
eggs are laid in a round patch on the leaves of the food plant. 
Only a few eggs are laid in the first row.. Each succeeding row 
is headed on to the others, and the numbers are increased 
until the centre is reached. After this they recede so that, 
when the work is completed we have a rather dirty looking, 
round, dark-brown patch somewhat resembling, in the distance, 
a patch of black soot, and in consequence they are often over- 
looked by the casual observer. Hach of these patches contains 
about four dozen eggs. Although both of these insects like 
passion vines, and can always be found amongst them when they 
are about, they do not confine themselves to them, and are 
often found on other plants, both in the orchard and the bush. 
ON THE TEMPORARY PROVISION OFTEN MADE BY THE RESTING 
LARVAE OF NEUROPTEROUS INSECTS AFTER THEIR ORIGINAL 
CocoONS HAVE BEEN DAMAGED. 
The hollow silken hammocks. in this exhibit show the tem- 
porary provision made by a resting larva of one of the Neuro- 
pterous Porismus strigatus, after-its original cocoon had been - 
a 
