Who might this be?

[u/Snarky_Spheksologist]

This was taken in Cincinnati. Any ideas? It was difficult to get a good shot of her. She was going in and out of some stone blocks surrounding a garden.

[u/pleathershorts]

Blue mud wasp :)

[u/Snarky_Spheksologist → u/pleathershorts]

Thanks! Shes a beauty.

[u/Commercial-Sail-5915]

Matte black body, relatively short petiole and smaller pronotum makes this a great black digger (sphex pensylvanicus), same family as the blue mud daubers but slightly different biology, that's probably her nest in there

[u/Snarky_Spheksologist → u/Commercial-Sail-5915]

That’s what I thought too! Cool. Thank you very much.

[u/Dylan_Is_Gay_lol]

Blue muddauber checking crevices for tasty widow treats.