This is the second time I’ve seen this behemoth. It looks like a “stretch-bee” and is maybe 3 times larger than a normal bumble bee.
Here are some pictures, the “little” wasps beside it are actually normal size (about 3/4 – 1 inch). This thing is noticeable. They are feeding on the sugar water dripping from our hummingbird feeder. We’ve since replaced the feeder with one that doesn’t drip…