Four-toothed Mason Wasp ?? - Cerceris fumipennis -
Tallahassee, Leon County, Florida, USA June 22, 2019 Size: 18mm
Subterranean, multiple burrows with 1/2-inch daylights, no soil mounds, bare, open soil composed of stiff sandy clay. Located in a "colony" much like prairie dogs. Counted roughly a dozen burrows within a four foot diameter.