I saw a new species of note last month. There was no way to miss this large moth, probably the largest I've ever seen, on the side of the school where I walk the dog.
This is a Polyphemus Moth, a member of the giant silk moth family. We are at the upper limit of its range, here on the west coast. Consulting this website, it appears they are fairly common in the US.
It's unfortunate that I didn't see its wings opened, as I would've seen beautiful purple eyespots on its 6-inch wingspan.