Black and yellow hornet, 1 in. long, with distinctive patterns on head, thorax, and abdomen.
Also called Blackjacket and several other names. These American and Canadian hornets have an interesting competitive social hierarchy made up of sterile males, worker females, and a queen. They're omnivorous, and they can squirt venom into the eyes of attackers. Luckily this one was docile and didn't squirt me!