Brood X (10 in Roman numerals) describes a "brood" of periodical cicadas, within the genus Magicicada, that emerges from the ground once every seventeen (17) years in parts of the U.S. to scream, mate, and die within a few weeks. They look mostly black with some orange highlights and have beady, red eyes. Not all places seem to get them, but in mature forests they are able to congregate in numbers high enough that they don't all get eaten.
The last time that Brood X emerged was during 2021. They also emerged in 2004, and the next time they will emerge will be in 2038.
by WhoDatFreshBoi June 21, 2021