Nearly as abundant as the Eastern Tiger Swallowtails on that summer weekend back home.
Great Black Wasp
They were everywhere.
By far, the most numerous of the butterflies trying to drink the yard dry on this late July afternoon.
These guys and several of their mimics were practically rioting in my mother's back yard.
I don't know how long I chased this guy around the butterfly bush before I got even this less than stellar shot. But I think its enough to call it diffinis.
Tentatively IDed as Microthopala vittata on BugGuide but I'm not certain. This individual certainly wasn't on goldenrod.
I'm horrible with skippers. Any idea on a species?