They are fairly large wasps, shiny black with pale hind tarsi.
Genocide Organ | pipe organ | Hammond organ | MUD | Toledo Mud Hens | Pump organ | Organ transplantation | Mud | Wanamaker Organ | Pipe organ | pipe | Allen Organ Company | Water pipe | United Network for Organ Sharing | New Earth Mud | Mud (band) | Hammond Organ | The Organ | sex organ | Reed pipe | pipe (material) | Organ Transplantation | Organ stop | Organ donation | Organ console | North Tonawanda Barrel Organ Factory | Mud shrimp (disambiguation) | Mud shrimp | mud | Martin Pipe |