Artwork from Super Metroid.

Metaree is a species found in the Metroid series, currently only appearing in Super Metroid for the SNES. They are insect-like creatures that wait on top of ceilings until an opponent of theirs comes along, where they'll then rapidly shoot from the top and dig underground. If they don't manage to hit their target, then the rocks that will shoot out of the ground may do the job.

Generally it's best to stay away from one of these and not attack it, seeing that they are mostly protected by their arms that they use to dig with, which covers both sides of their body. If you manage to attack it from underneath it, then that will likely kill it.