Family Vespidae is a large family of wasps that includes over 5,000 species worldwide. The wasps in this family are known for their distinctive appearance and behavior, which often involves building complex nests and hunting prey for their larvae. Some common synonyms for Family Vespidae include social wasps, paper wasps, hornets, yellow jackets, and aerial yellow jackets. These names reflect the family's social behavior and the paper-like material they use to construct their nests. While many people have negative associations with wasps, they play an important role in ecosystems by controlling pest populations and serving as pollinators.