I have swarms of an unidentified bug hanging on the underside of my tree branches. The bug, or at least the carcus, looks like a tiny golden brown armadillo. Can you tell me what this could possibly be? Illinois area.
Bugs on Trees
Certified GKH Gardening Expert
It might be bagworms:
Or possibly cicadas:
Your area is not due for them until next year, but pockets of "early birds" can exist.