This refers to the prey, only. I suspect it's Trypoxylon, but it's not an ideal view.
Observation occurred in a remnant loess hill prairie.
For the predator, see: https://www.inaturalist.org/observations/154052175
Dismal Swamp State Park
Wasp patrolling the brick wall inspecting holes & crannies.
Trypoxylon, genere-Arthropoda-Hexapoda-Insecta-Pterygota-Hymenoptera_Apocrita-Aculeata-Apoidea-Crabronidae_Crabroninae-Trypoxylini-Trypoxylon
Trypoxylon, genere-Arthropoda-Hexapoda-Insecta-Pterygota-Hymenoptera_Apocrita-Aculeata-Apoidea-Crabronidae_Crabroninae-Trypoxylini-Trypoxylon