Cicada killers prey on annual cicadas (as in your picture), mostly in late summer. Periodical cicadas emerge in early summer and are dead by July. I don’t know if cicada killers would know what to do surrounded by millions of orange-eyed, keening space-alien critters. A big periodical cicada emergence has to be seen (and heard) to be believed.
Cicada killers prey on annual cicadas which emerge in July and August. The 17 yr will be long gone by then.
“The Cicada Killer hornets are eagerly waiting...”
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Brood X has them outsmarted. Before the Killers emerge from their underground burrows, BROOD X cicadas have accomplished their generation’s breeding and, having fulfilled the mission, quickly die off. The Killers are left with the annual cicadas to harvest as the food supply for their underground offspring.