Hold still, little ant

I was just sitting at our dining room table, innocently sorting puzzle pieces into plastic bowls, when I spotted an ant on one bowl. Hmm, looked like a new ant species to me. I hadn't seen such long antennae and a long stinger on an ant before. Cool! I whipped out my phone and started TRYING to get photos. But the little guy wouldn't hold still. However, with James' help and my macro lens, I finally got some and videos, too.

Turns out that my little friend is NOT an ant! It's some species of ichneumonid wasp (that's often wingless) in the genus Gelis. And that's an ovipositor (tubular structure used for laying eggs), not a stinger. Amazing!