Tiger mosquito: how to recognise it and protect your home

The tiger mosquito is recognisable by three signs: sharply contrasted black and white stripes on its body and legs, a tiny size (noticeably smaller than a common mosquito) and a habit of biting in broad daylight. It is now established across much of France and southern Europe. The good news is that protecting your home takes no chemicals at all: a physical barrier at the windows and doors, plus getting rid of the small pockets of water around your house, is enough to restore the peace.

If you are reading this, you have probably already met that little striped mosquito that bites your ankles in the middle of the afternoon, out on the terrace. That makes sense: it does not behave like the evening mosquito we were all used to. Here is how to identify it without any doubt, what you need to know about the risks, and how to keep your home out of reach.

Recognising the tiger mosquito at a glance

Black and white stripes, clean and sharp

This is the most reliable clue. The tiger mosquito is deep black, striped with pure white, with no hint of grey or brown. Its legs are ringed with white, as though it were wearing little socks, and a fine white line runs down the middle of its back. A common mosquito, by contrast, is beige or light brown, dull and uniform. If you can see real black and white contrast, you have your answer.

A surprisingly small mosquito

Contrary to what its reputation suggests, it is smaller than an ordinary mosquito, barely the size of a grain of rice. People often take it for a midge, right up to the moment it bites. The practical consequence: on a fly screen, the fineness of the weave matters just as much as the strength of the fixing.

It bites in daylight, low down and in silence

The common mosquito wakes you at night with its whine. The tiger mosquito is active during the day, with two peaks: late morning and, above all, late afternoon. It flies low, around ankle and calf height, and stays very discreet to the ear. It is persistent too: wave it away and it comes back. Hence those three bumps on the same leg after nothing more than drinks in the garden.

It was born very close to your home

The tiger mosquito is a terrible traveller: it spends its life within a few dozen metres of the spot where it hatched. The one biting you has not come from some distant marsh, it emerged at your house or at your neighbour's. Acting on your own garden therefore genuinely changes the situation.

Why it settles in so well

The tiger mosquito reached France through the south-east about twenty years ago, carried passively by goods and vehicles. It did not conquer the country by flying: it hitchhiked, step by step, along the major routes. Since then it has pushed north and west, and it is now established across a large part of the country, including areas a long way from the Mediterranean. The same story has played out in Italy and Spain, and it keeps creeping further north.

Three things explain that success. Long, hot summers and early springs, which stretch out its active season. A pronounced taste for our towns and gardens: this is a domestic mosquito, not a marshland one. And above all, a ridiculously small amount of water is enough for it to breed: a saucer under a plant pot, a forgotten bucket with a little rainwater in it, a blocked gutter, and the job is done.

Its eggs, what is more, are remarkably tough. Stuck to the wall of a container, they survive for months in the dry and wait for the first rain to hatch. That is why emptying a container is not always enough: you also need to scrub the sides. For the rest, we go into the real attraction factors in our article on what attracts mosquitoes.

The real risks, without adding panic

In the vast majority of cases, a tiger mosquito bite means a bump that itches badly for two or three days, nothing more. It is neither an emergency nor a reason to give up on your terrace.

That said, this mosquito is what is known as a potential vector: in rare cases it can transmit dengue, chikungunya or zika. The mechanism is fairly reassuring. A tiger mosquito is not born carrying a virus: to transmit anything, it first has to bite someone who is already infected, back from a part of the world where the virus circulates, and then bite someone else. That is why cases of local transmission remain rare in mainland France and southern Europe: occasional, localised and closely monitored by the health authorities.

The useful reflex: if, in the days after being bitten, you develop a fever, unusual tiredness, joint or muscle pain or a skin rash, see your doctor and mention the bites and any recent travel, yours or a relative's. National health agencies describe these symptoms reliably. In every other case, the real question is simply peace of mind: not being bitten at home any more.

Protecting your home without a gram of chemicals

At Moskera, we will never recommend an insecticide spray or a plug-in diffuser. For a very practical reason: whatever you spray into a room, you then breathe, and so do your children and your pets, and the next day the problem is still there. The only protection that works continuously, with no smell and nothing to inhale, is a physical barrier.

At windows and doors, the fineness of the weave is everything

Because the tiger mosquito is small, a rough mesh is useless: it gets through. Our panels are woven from E-glass fibreglass at 18x16 threads per inch, tight enough to stop it and open enough to let air and light through (mesh rated M2 for fire). For a bedroom or a kitchen, a magnetic window fly screen settles the matter for the whole season. For access to the garden, the door version closes itself behind you thanks to its magnets, which avoids the classic doorway left open for ten seconds.

Fitted without drilling, in ten minutes

Everything fixes in place with a magnetic adhesive strip or hook-and-loop tape, without drilling, without tools, in about ten minutes. A real advantage if you are renting, or if you prefer to take everything down out of season. Depending on care, a fly screen lasts between 8 and 20 years. Standard sizes ship within 24 to 48 hours, with 10% off from 2 items and 20% off from 4. You can compare the models in our collection of magnetic fly screens.

Closing your windows is not enough

Plenty of people live with everything shut and still get bitten. Mosquitoes take advantage of a door open for a few seconds, an air vent or the gap under a door. We have devoted a whole article to that frustrating puzzle: why do I have mosquitoes in my home even when the windows are closed. It is also why we stand behind our 30-day zero-bite guarantee, or your money back, on our standard models.

If no standard size fits (a window that is out of square, a round porthole, a wide sliding patio door), our made-to-measure configurator works from your exact dimensions, curved and triangular shapes included.

Getting rid of breeding sites, the step that changes everything

The fly screen protects you, but emptying the water brings the population down. Together, the two turn an unusable terrace back into a pleasant evening. Remember that the mosquito biting you was born a few metres away: your garden and your balcony are your most effective levers.

Water hides in more places than you would think:

• saucers under plant pots and window boxes, indoors as well as out;
• buckets, watering cans, wheelbarrows, children's toys, ashtrays, stored tyres;
• blocked gutters and rainwater drains;
• loose covers over firewood, the barbecue or the pool, where water forms pockets;
• the dog's or cat's water bowl left outside, the saucer by the kennel;
• uncovered rainwater butts, vases, fountains that have been switched off.

The ideal rhythm is weekly: empty, scrub the sides to dislodge the eggs, and turn anything you are not using upside down. A rainwater butt can be covered with a fine mesh held in place by an elastic band. And do mention it to your neighbours: since the flight range is so short, a single forgotten pocket of water on the other side of the fence keeps the whole street supplied.

Bitten anyway: the right steps

A tiger mosquito bite often itches more than the others and swells more. Wash the area with soap and water, apply something cold (an ice cube wrapped in a cloth) and above all avoid scratching, because it is scratching that causes infections. If the swelling spreads, if the skin is red and hot or if you have a fever, see a doctor. We go through all the right steps and the mistakes to avoid in what to do if you get a mosquito bite.

Reporting a tiger mosquito near you

In France there is an official citizen reporting portal, run by the national health and safety agency Anses: signalement-moustique.anses.fr. You upload a photo of the insect and your location, the identification is checked by specialists, and it feeds into national surveillance. It takes a few minutes, and it is genuinely valuable if you live in an area where the species has not been recorded yet. Elsewhere, check whether your local health authority runs a similar scheme.

Frequently asked questions