July 11, 2018 - Seeing this jellyfish more and more; So I looked it up.

Un ejemplar de 'Pelagia noctiluca' (Wikimedia / Hans Hillewaert)
Pelagia noctiluca. I've been seeing a dozen or so of these in la Linea de Concepción, Spain since I arrived on the 7th. But what's amazing is I would have been in Malaga, Spain during this time but my host canceled so I came here. And in Malaga this past weekend they cleaned up 9 us tons of these jellyfish off the beach. Dodged a bullet there I'd say.