Entomologists, what kind of hornet/wasp was this?

I saw this thing on the pavement the other day. She is big (a bit longer than an inch I would say), so I assumed some kind of hornet, but all the photos of hornets on the internet have more yellow abdoments.

Any thoughts?

I have seen a lot of them buzzing around a tree outside my window at work.

Yellowjacket or hornet, yep. Not sure exactly what species.

There’s a lot more species of hornets than that.

You don’t say where you are, but here’s a key to eastern hornets of the genus Vespulawith illustrations.

Cicada Killer? https://en.wikipedia.org/wiki/Sphecius_speciosus

That looks like a pretty good match to me.

Looks specious to me.

<d&r>:D

That’s a great picture.

Occasionally I get one of those pretty blue mud daubers lazily flying around the house. I don’t mind them since they’re not aggressive. Can usually either catch it or get it to go back out a window or door.