Paper wasps are also known as umbrella wasps due to the unique design of their nests. Paper wasps usually measure 3/4 to 1 inch in length, are narrow-waisted, and have smoky black wings. Paper wasps are generally reddish-brown with yellow markings on their head and thorax and yellow rings around their abdomen. They are voracious predators of several residential and agricultural pests. Paper wasp colonies are most valuable close to vegetable gardens, where they provide control of herbivorous caterpillars. There are twenty-two species of paper wasps in North America.
Paper Wasp Nests; The gray, papery nests of paper wasps are built using wood fibers and contain open combs with cells for brood rearing and a petiole that anchors the nest. Paper wasps secrete a chemical ant repellent, which they spread around the base of the anchor stalk to prevent ants from feeding on the wasp eggs or larvae. The paper wasp nest resembles an upside-down umbrella and is commonly found in sheltered areas, such as the eaves of a Long Island home.