I was taking my mother to CostCo one Saturday morning when this monster came barrelling out of the sky! I thought it was a huge wasp at first, but figured out that it was a beetle, and followed it as it bounced to a landing on the windshield of a nearby SUV. I'm not sure what startled the lady driver more, the beetle or me, as she retreated inside. I scooted the creature into a spring-water bottle, took it home, photographed it, and set it loose a few miles down Ellerbee Creek from the CostCo. As near as I can figure, from Dillon and Dillon and from the Audubon guide (Milne and Milne), this is Dytiscus verticalis.