The nest or the mass of bubbles made from a rather viscous liquid is very important for the froghopper so that it may escape from predators and drought maybe, and i think it's a really effective way and maybe that's the reason why it's so common.
It sucks the xylem sap to produce these bubbles and the bug stays comfortably in this mass i really don't know if it aestivates or anything and i also found out that it's a pest but I've never seen any damage done by this bug.
Believe it or not i've never seen this bug hop either!
I don't know if the species we have is endemic.
There's so much i don't know about this bug.
A few pics:
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