Yellowjackets (Vespula spp., Dolichovespula spp.) are so named for their distinctive yellow and black markings. They are relatively hairless, with wings that are often a translucent golden-tan color. Yellowjackets are house fly-sized, ranging from 12-25 mm.

They are common worldwide, and are particularly abundant in the southeastern United States. Yellowjackets are carnivorous, primarily feeding on other insects like flies and bees, but also on fruits, picnic fare, carrion, and the nectar of some flowers.