It'll then be Brood XI. They're Roman numeralled.
I didn't know what to expect from the much-ballyhooed monster swarm when I got here. Turned out that they're inoffensive, and not nearly so many as I was expecting with all of the dire predictions.
I do seem to see a lot of really flabby birds these days, though...
Unfortunately that article refers to "Brood X" as being the name of a particular species of cicada. As it turns out Brood X consists of at least 3 different species, each with a different eye color and vibratory frequency and pattern. Some do the morning, some are Noonish, and others the afternoon.
17 years from now the descendants of Brood X will be up and about and they will also be called Brood X.
We can hear.