European Hornet

Scientific Name: Vespa crabro

Order & Family: Hymenoptera: Vespidae

Size: 25–35 mm (approx. 1 to 1.4 inches) for queens; workers are smaller.

European Hornet

Natural Habitat

Woodlands, gardens, and near human structures where they build nests in hollow trees, wall voids, or attics.

Diet & Feeding

Large insects such as flies, bees, and other wasps; they also feed on tree sap, fallen fruit, and nectar.

Behavior Patterns

Unlike many wasps, they are active at night and are attracted to porch lights. They are social insects that build large paper nests and follow a seasonal life cycle led by a queen.

Risks & Benefits

They possess a painful sting and can be defensive if the nest is threatened, but they are generally less aggressive than yellowjackets. They benefit the ecosystem by preying on many agricultural pests.

Identified on: 4/24/2026