Black and Yellow Potter Wasp? - Cerceris bicornuta

Moved

Moved from Cerceris.

… John S. Ascher, 29 March, 2017 - 5:57am

Male - Cerceris bicornuta

Bob, please note that the notch on the yellow stripe, on the abdominal T2, can have a variable width in this species (the most) and the overall colors of this genus (mostly the black & red) are also slightly variable.
Here are a few reference images that you may want to compare with your male wasp's images. Cerceris bicornuta:
mating pair:

male (dorsal):

I suggest that you verify my info and then move the images or ask Dr. Ascher to take another look at him, because he was correct to question this one, as usual. Good Luck!

… Bob Biagi, 25 August, 2015 - 1:39pm

Moved

Moved from Yellowjackets, Paper Wasps, and Hornets; Potter, Mason and Pollen Wasps.

… John S. Ascher, 5 August, 2012 - 11:24am

Cerceris rufopicta (Crabronidae) - female

One of the "Weevil Wasps". An Apoid Wasp, not a Vespid.

… Richard Vernier, 3 August, 2012 - 1:40pm

I question the species ID

What is your basis for this?

… John S. Ascher, 5 August, 2012 - 11:25am

Thanks!

… Bob Webster, 3 August, 2012 - 5:47pm

Cerceris sp. (Crabronidae) - female

One of the "Weevil Wasps".

… Richard Vernier, 3 August, 2012 - 1:36pm