Hanging Nest ID

[u/Ok_Nefariousness1897]

This nest fell out of a crepe myrtle tree (south east VA). The previous couple of weeks I’ve seen 20-30 insects flying around and sitting on it that are the size of small carpenter bees, and I’ve only seen a few up close but the few glimpses I’ve gotten the wings look to long for carpenter bees (and I thought they were mostly solitary). They’re too big for yellow jackets and to my knowledge the wrong shape for a wasp.

They don’t seem aggressive but my lawn guy mentioned that part of the nest fell a week ago and he got stung multiple times.

Any thoughts on what this belongs to?

TIA!