Darkoshi

Columbia, South Carolina (very near to the Congaree park mentioned in that article). Besides looking like the picture, when I catch one of them (using a clear plastic container), they usually jump and make a loud snapping sound, so it makes sense for them to be called "click" beetles. Sometimes they'll make the sound before I notice them. It's a scary sound (at least in conjunction with a loose bug ricocheting from the walls), so that makes me want to catch them and get them out right away.