Black & Yellow Fly? Bee? Wasp?

[alandy]

Quite distinctive and should be easy to ID, but cant find it in my books.
Any help please.

[ladyhawk]

Potter or Mason wasp could be Odynerus sp. but not a hundred per cent

[Anzu]

I was thinking Ancistrocerus species because of the yellow on the thorax, but I'm not an expert so I am hoping an expert will pop on to tell us for sure.

[oxycera]

Certainly has the look of Ancistrocerus, or something closely related.

[Anzu]

Then possibly Ancistrocerus parietum because of the triangular black mark on the 1st abdominal segment? Although it could just as well be one of the rarer species, so I would just leave it at Ancistrocerus species.

[oxycera]

Off the top of my head I couldn't rule out something like Symmorphus, but in any case you can't id Ancistrocerus species from photographs, unfortunately.

[JRsbugs]

Symmorphus gracilis looks a very good bet! Both sites are ones I would trust..

Symmorphus gracilis - Lehmwespe 01c 7mm.jpg

Iconographie des Vespidae du Monde

Janet

[alandy]

Thanks Janet, I looked at the two web sites, and it seems like a pretty good match to me.

[oxycera]

Not conclusive though.

[Matt Smith]

Looking at the image I'd say Symmorphus sp. - you can see the "indentation" on the top of Tergite 1