Definition
Mason wasps are solitary wasps known for building nests out of mud or clay, similar to how masons use mortar to build structures. These nests are often constructed in pre-existing cavities, such as holes in walls or hollow stems. Mason wasps are not social; each female builds and provisions her own nest. They capture insects or spiders to feed their larvae. Mason wasps are generally black or dark-colored with pale markings. They're like the tiny architects of the insect world, carefully crafting homes for their young. They help control insect populations.