After work, I went to my car and noticed what looked like a big pile of bird poop on the trunk. But it looked too symmetrical, so I took a closer look. I realised it was some kind of moth. I couldn't take a picture of it, but was able to find a likely candidate on Google Images. It was either a Beautiful Wood Nymph moth or a Pearly Wood Nymph moth. I'm not sure which as I didn't know the specific differentiating markings until later. Here is a pick from the Internet though to give you an idea:
-John[/url]