Moved from Beewolves.

Moved from Aculeata - Bees, Ants, and other Stinging Wasps.
Next time you can move it yourself after somebody knowledgeable has IDed it. It is satisfying to you and save the editors some time. If you don't know how we can help you or: Tag it, go to the right page (Images, not Info)in the guide and click on move tagged image.

Both of you, Eric and Richard, have loads more experience than I, so 'chapeau' (hats off to you). However, looking at the transverse tergal depressions I recall Eucerceris ; at least Gorytes , now in Bembicinae, doesn't have those. Enlarging the image, it looks like the abdomen might be punctate as in Philanthinae, with which Eucerceris sits taxonomically.

This is a species in the genus Philanthus (family Crabronidae). I know because of experience, and the obviously rough sculpturing of the abdominal integument.

Because, while fairly constant in Tiphiids, its shape is very variable among Crabronids (which were included in Sphecids until very recently, hence the categrory "traditional Sphecids" in BG).
Based on slenderness of legs, which contrasts with hairy, knoty legs of most Tiphiids, I would guess this one Wasp is a Crabronid from the Gorytini tribe.