Usually, when one first meets a Cicada Killer, their first impression is one of intimidation. They look like giant pulsating Yellow Jackets and by the time your brain processes the fact that you’ve seen one, they are usually already strafing circles around you like a military helicopter waiting for launch orders. These would be the males of the species by the way. I should also mention that the males have no stingers and this is really just them checking you out to see if you are either a suitable female or another male who needs to get the hell out of his territory. They won’t actually attack you (though my wife at first thought differently based on her run-ins with them).