RELATED: Cicadas 2021 Map: Brood X starts to emerge in DC, Maryland and VirginiaThe bugs only begin to emerge in large numbers when the ground temperature reaches 64 degrees.The cicadas will mostly come out at dusk to try to avoid everything that wants to eat them, squiggling out of holes in the ground.
They’ll try to climb up trees or anything vertical. Once off the ground, they shed their skins and try to survive that vulnerable stage before they become dinner to a host of critters including ants, birds, dogs and cats.They come out in large numbers to ensure survival.