Yellow jacket is the common name in North America for predatory wasps. All females are capable of stinging. Yellow jackets are sometimes mistakenly called "bees", given that they are similar in size and appearance and both sting, but yellow jackets are actually wasps.
Hornets are similar in appearance to their close relatives yellow jackets. Some species can reach up to 2.2 in. in length. They are distinguished from other wasps by the relatively large top margin of the head and by the rounded segment of the abdomen just behind the waist. Like other social wasps, hornets build communal nests by chewing wood to make a papery pulp.
Baldfaced hornets are distinguished from other yellow jackets by their white and black coloring.
Mud Daubers are solitary wasps that construct small nests of mud in or around homes, sheds, and barns. After completing the mud nest the female captures several insects or spiders to provision the cells. Prey are stung and paralyzed before being placed in the nest as food for the larvae.
Mud Dauber nests are attached to crevices, cracks and corners. Each nest contains one egg. Usually, they clump several nests together and plaster more mud over them.