Have observed this wasp stinging and dragging crickets into her nest. She flies very low and skips on the ground.
She’s a dark bluish black, but not metallic. Her head is square with large eyes. Her abdomen has white stripes but they’re only visible at certain angles? Or dependent on her position?

I don’t know her exact size, but I submitted a request to ID her in the past. One photo shows her with the cricket, for size reference.
Thanks :)