European Hornet

Actual Size: ½ to 1.4”

Characteristics: Large, brownish colored with dull orange stripes and pale face.

Legs: 6

Antennae: Yes

Habitat: Nest in followed out trees, barns, hollow walls in buildings, attics, and even abandoned beehives.


  • They are the only “true hornet” in the United States
  • Unlike most stinging insects, these hornets are active at night
  • They live in nests with up to 500 other members

European Hornets in Knoxville TN

European hornets also known as brown or giant hornets, get their common name from being introduced to the eastern United States from Europe in the mid-1800s. These hornets are found in 30 states, from the eastern U.S. as far west as Louisiana and the Dakotas, and are seen in residential areas right here in Tennessee. European hornets are much larger than yellowjackets, and unlike most stinging insects, can be active at night. Adults, possibly seeking prey, come to light in the evening and can be a source of great concern for homeowners.

European Hornet Nests

Like many other stinging insects, European hornets are social wasps that normally build their nests in hollow trees, but will also utilize wall voids and attics of houses. Their nests will rarely appear freely suspended like the football-shaped bald-faced hornet nests. European hornet nests are generally located 6 feet or more above ground, and will occasionally be constructed on the sides of homes. In some instances, a portion of the gray, papery nest extends outside the cavity or void. An average hornet nest will have 200 to 400 workers by late summer and they can become aggressive if they feel threatened. Because their nests are often built on the side of buildings, they can become dangerous in residential areas.

European Hornet Habits & Dangers

Although they are large in size and appear frightening to some, European hornets will not sting unless threatened and tend to leave people alone. That said, this hornet is capable of stinging multiple times, and those that may be allergic to their venom should seek medical attention when stung. European hornets can cause issues for homeowners by nesting in barns, hollow trees in yards, wall voids, or attics. When food becomes scarce in late summer, they look for sugary foods and may destroy fruit trees. These hornets are attracted to porch lights at night and will sometimes bang up against windows, causing many a distressed homeowner.

If you notice a European hornet nest forming in, near, or on your property, contact your local wasp removal company for help.