Painted Swarm Boxes. Get ready for swarm season. We coated the tops with a 100% Silicone roofing material to keep the lids sealed tight. These have a cleat (see photo) to hold the lid in place and are great for catching and transferring swarms. $36 complete with dial entrance reducer. The bottoms are attached and we have added feet this year to get them up off the surface and keep them dryer. They also have a couple of screened vent holes in the back the help keep them cool.