Introduction: three hornets instead of two
For twenty years, the question put to professionals was always the same: "is it a European hornet or an Asian hornet?" Two species, two silhouettes, two protocols. Since 2021, the answer has become more complicated, and autumn 2026 is probably the first season in which the general public needs to take on board a third name: the Oriental hornet, Vespa orientalis.
First reliably reported in Marseille, it has since been observed at several locations in Bouches-du-Rhône, Var, Alpes-Maritimes, Hérault and Corsica, with isolated sightings reported much further north, as far as Île-de-France and the Lyon area — most often via freight transport. The Office français de la biodiversité, the Muséum national d'Histoire naturelle and the INPN (Inventaire national du patrimoine naturel) collate these observations, and regional beekeeping networks are spreading the alert.
This site has already covered wasp and hornet nests in late summer, stings in summer 2026 and the biology of the Asian hornet. The angle here is different and topical: learning to identify a species that wasn't part of the landscape five years ago, understanding what it changes — or doesn't — for a home, and knowing what to report, and to whom.
What exactly is Vespa orientalis?
A Mediterranean species, not a global novelty
Unlike the Asian hornet, accidentally introduced into Lot-et-Garonne from China in 2004, the Oriental hornet has not come from the other side of the planet. Its natural range covers the eastern Mediterranean basin, the Near East, North Africa and part of Central Asia. It is common in Greece, Turkey, Israel, Cyprus and southern Italy.
What has changed is its spread to the north-west, documented over the past fifteen years or so in Italy (Rome, then Tuscany, then Genoa) and now in Spain and France. The hypotheses put forward by entomologists combine the warming of Mediterranean winters, which improves the survival of founding queens, with passive transport via freight: an overwintering queen tucked into a pallet, a container or a batch of building materials can travel several hundred kilometres effortlessly.
What it looks like — the one thing to remember
The three species can be told apart easily with the naked eye, provided you look in the right place: the abdomen.
| Species | Worker size | Immediate distinguishing feature |
|---|---|---|
| European hornet (Vespa crabro) | 18-25 mm | Yellow abdomen striped with black, russet and black thorax |
| Asian hornet (Vespa velutina) | 17-25 mm | Very dark body, yellow legs, a single broad orange band at the tip of the abdomen |
| Oriental hornet (Vespa orientalis) | 18-30 mm | Uniformly reddish-brown body, broad bright yellow band on abdominal segments 3 and 4, yellow face |
The Oriental hornet gives the overall impression of a "very bulky russet wasp". Its mahogany-red colour is clear-cut, without the matte black of velutina or the lemon yellow of crabro. Another frequently cited detail: its face is largely yellow, which makes it recognisable head-on at close range — which, in practice, is not the recommended distance.
To settle a doubt without getting closer, a recent smartphone is rarely enough on its own: better practice is to photograph it with a macro lens for smartphone from 30-40 cm, or to take a shot of a dead specimen found on the ground. Reporting platforms require a sharp photo to validate an observation.
What it really changes for a home
The nest: discreet, often underground or in a cavity
This is the most important difference from the Asian hornet. A velutina nest is typically a large ball of paper visible high up, in a tree, a tall hedge or under eaves. The Oriental hornet's nest is most often hidden:
- in a cavity in the ground (an old burrow, a bank, the foot of a wall);
- in a hollow low wall, a roller-shutter box, a service void;
- in a compost bin, a stump, a pile of rubble;
- occasionally in a loft or a garage, through an opening of just a few centimetres.
The practical consequence: you don't see it, you stumble upon it. Usually while mowing a bank, clearing brush, moving a woodpile or putting a closed outbuilding back into use. This is exactly the accident-prone scenario described every year for underground wasp nests, with a population that can reach several hundred individuals by the end of the season.
Before any brush-clearing work in a Mediterranean area in autumn, spending 2 to 3 minutes observing the ground beforehand remains the most effective measure: a steady coming and going of insects towards the same point on the ground signals a nest. Prolonged clearing work near a suspicious bank should be done wearing a sting-proof beekeeper suit, not shorts and a T-shirt.
Behaviour: defensive rather than aggressive
The available data, notably work published by Israeli and Italian teams that have been monitoring the species for a long time, describe a hornet that is not very aggressive away from the nest but highly defensive close to it, with a reaction perimeter of a few metres and the ability to pursue over several dozen metres if the nest is disturbed by vibration (lawnmower, brushcutter, spade).
Its activity is strongly diurnal, with a marked peak during the hottest hours — typically Mediterranean behaviour. Like wasps, it is drawn to proteins (meat, fish, pet food left outdoors) early in the season and to sugars (ripe fruit, drinks, bins) later on. In autumn 2026, it is this second phase that dominates.
The venom: a hornet sting, no more and no less
This needs to be stated clearly, because confusion spreads fast: the Oriental hornet's venom is not described as more dangerous than that of other hornets. As with any hymenopteran sting, the risk comes down to three factors:
- Location: mouth, throat, eye → call 15 immediately.
- The number of stings: beyond around twenty in an adult, the venom load can cause a systemic toxic reaction.
- Individual allergy: this is the real danger. According to Ameli and the recommendations relayed by Vidal, anaphylactic reactions occur in sensitised individuals, sometimes as early as the second sting of their life, regardless of the species.
The warning signs are the same: hives spreading far from the sting site, swelling of the face or tongue, breathing difficulty, vomiting, faintness, a drop in blood pressure. In such cases, call 15 and do not hesitate to use the adrenaline auto-injector pen if the person has one.
For a simple sting: remove rings and watches if the hand is affected, briefly apply a source of heat (the venom is partly thermolabile), then apply cold, disinfect and monitor for 30 minutes. A sting first-aid kit containing an antiseptic, a venom-extractor pump, a soothing cream and an instant cold pack absolutely belongs in a car boot or a garden shed in Mediterranean areas.
