Common European Yellowjacket

<em>Vespula vulgaris</em>, the common European yellowjacket, is a social wasp in the family Vespidae, classified as Least Concern by the IUCN Red List. The species is widely distributed across Asia, Europe, North America, Oceania, and South America, occurring in virtually all terrestrial and freshwater biome types. <em>Vespula vulgaris</em> is one of the most recognizable and abundant social wasps in the Northern Hemisphere, forming annual colonies in underground nests, wall cavities, and other sheltered sites. Colonies are founded in spring by a mated queen and can grow to contain thousands of workers by late summer. Workers are aggressive defenders of the nest and will sting repeatedly when threatened. The species is omnivorous, preying on a wide range of insects and other invertebrates to provision larvae with protein, while adults feed on carbohydrates from nectar, fruit, and human food sources. As both predators and scavengers, common yellowjackets perform important ecosystem services in regulating insect populations and recycling organic material. Their predatory behavior makes them beneficial in agricultural settings, though their aggressiveness near human habitation and food can make them a pest species. Introduced populations in New Zealand and Australia have had significant negative impacts on native invertebrate communities. Biological traits of this species remain poorly documented in the scientific literature.