although the female of the species will sting if threatened, per Thomas Pest Services. These wasps being dubbed "cicada ...

Eastern cicada killers (Specius speciosus ... while the immature stages feed on annual cicadas provided to them by the female wasp. Males have especially aggressive territorial behavior, but ...

You might be mentally prepared for Illinois' massive cicada emergence coming up. But there's one part of the insect's arrival that you may have not considered: the surfacing of the Cicada Killer Wasp.