Please excuse the funkiness of the first couple of seconds. I don’t know what caused that.

I don’t know what species this is, but it’s pretty much the perfect slo-mo subject: flapping furiously but the center-of-mass is not moving very much, and didn’t fly away at my approach. I missed an even better shot while I was unslinging my camera; two of these butterflies were doing some sort of aerial ballet — either a mating ritual or fighting (or maybe both), but separated just as I got set to shoot.

Taken at Conway Robinson Memorial State Forest in Virginia.