These are boxelder bugs. They live in eastern North America, from the Atlantic Ocean to the Great Plains. They eat sap from the leaves, flowers, and seeds of boxelder, maple, and oak trees. They have a really cool black and red pattern on them. They are true bugs, which means they are in the same order as the giant water bug and other true bugs.
This is a picture of the underside of one of the bugs:
My Grandma Miller caught these for me. She likes boxelder bugs because they had a lot of them at the house she grew up in, and she played with them when she was a kid. I’m going to put one of them in my bug collection.