There's a great cicada photo here:
http://www.cincinnati.com/freetime/cicadas/
I have million of these buggers all around my house. If you disturb them they fly off from the trees or bushes leaving behind a very visible trail of what I would assume is "bug spooge". It's white dropplets of stuff that pretty much disappears.
Can't wait for the HERD OF LAWN MOWERS noise to die down.