We will be rolling out several small fixes mid-day today (Jan 29.) We do not anticipate any disruptions or problems, but f you spot any unexpected issues after 12 noon (PST), please report them in the designated thread in the DG Site Updates forum.
It looks like a cicada when it first comes out of the ground. It will leave this shell behind and become a large winged green fly looking critter. They are harmless and buzz loudly in the heat of summer. You may find these shells attached to pots, posts, walls, etc as they climb till they can bust out of the shell.
The first photo is two shells after the Cicadas have flown.