Yes, red wasps sting. They are paper wasps, and like all female paper wasps, they have a smooth stinger they can use repeatedly. That said, red wasps are not particularly aggressive. They typically only sting when they feel their nest is seriously threatened, either by jarring vibrations or by someone getting extremely close.
How Red Wasps Differ From Other Stinging Insects
The term “red wasp” usually refers to Polistes carolina or the closely related Polistes perplexus, the only two predominantly rust-colored paper wasps in the eastern United States. Their bodies are elongated and slender, nearly completely reddish-brown in females, with occasional small yellow markings on the legs, jaws, or face. Males tend to have more noticeable dark or sepia-colored markings on their legs and abdomen. Their wings measure roughly 15 to 20.5 mm, making them noticeably larger than yellowjackets but slimmer in build.
Unlike yellowjackets, which nest in underground cavities and are famously aggressive around food, red wasps build open, umbrella-shaped paper nests in sheltered spots: under roof soffits, porch ceilings, eaves, and sometimes inside hollow trees or structural voids. You can usually see the honeycomb-like cells of the nest exposed to the air, which makes identification straightforward.
How Painful a Red Wasp Sting Is
On the Schmidt Sting Pain Index, a scale developed by entomologist Justin Schmidt to rank insect stings from 1 to 4, paper wasps land at about 1.5. Schmidt described the sensation as “burning, throbbing and lonely. A single drop of superheated frying oil landed on your arm.” It’s sharper and more intense than a honeybee sting but well below the top of the scale occupied by bullet ants and tarantula hawks.
Red wasps have one advantage over honeybees: they rarely leave a stinger behind. A honeybee’s barbed stinger tears free from its body, killing the bee but continuing to pump venom. A red wasp’s smooth stinger stays attached, which means a single wasp can sting you multiple times if it feels threatened enough to keep going.
What a Sting Feels Like and Looks Like
You’ll feel an immediate sharp pain at the sting site. Within minutes, the area turns red and begins to swell, and itching usually follows. For most people, these symptoms are mild and resolve within 24 hours. A larger local reaction can produce swelling wider than about 4 inches (10 cm) around the sting, with redness and puffiness lasting several days. This is uncomfortable but not dangerous on its own.
Occasional complications include blisters at the sting site, skin infections if the area is scratched open, and in rare cases, a prolonged local reaction that lingers for weeks.
Treating a Red Wasp Sting at Home
If you spot a stinger in your skin (uncommon with paper wasps, but possible), remove it right away. Use a thin, flat edge like a credit card or butter knife. Lay it flat against your skin and scrape toward the stinger to pull it free. Don’t use tweezers, because squeezing the stinger can push more venom into the wound.
After that, basic first aid covers most stings:
- Cold: Apply ice wrapped in a towel or run cold water over the sting. This reduces swelling and numbs the area.
- Elevation: If the sting is on a hand, arm, foot, or leg, raise it above heart level to help bring swelling down.
- Antihistamines: An oral antihistamine like diphenhydramine can ease itching and mild swelling. Hydrocortisone cream or calamine lotion applied directly to the sting helps with surface irritation.
- Pain relievers: Over-the-counter options like acetaminophen, ibuprofen, or naproxen manage pain. Ibuprofen and naproxen also reduce inflammation.
Signs of a Serious Allergic Reaction
Most red wasp stings are a painful nuisance and nothing more. But a small percentage of people develop anaphylaxis, a systemic allergic reaction that can become life-threatening. Warning signs include swelling of the face, lips, or throat, difficulty breathing or swallowing, a rapid or weak pulse, dizziness, nausea, and hives spreading far from the sting site. These symptoms can develop within minutes. Anyone experiencing them needs emergency medical treatment immediately, and if an epinephrine auto-injector is available, it should be used without waiting.
If you’ve had a severe reaction to any wasp or bee sting in the past, you’re at higher risk of anaphylaxis from future stings. Carrying an epinephrine auto-injector and wearing a medical alert ID are standard precautions.
How to Avoid Getting Stung
Red wasps are defensive, not predatory toward humans. Nearly every sting happens because someone unknowingly disturbed a nest or got too close to one. A few practical habits cut your risk significantly.
Check sheltered spots around your home in spring, when queens start building new nests. Under eaves, porch ceilings, deck railings, and roof soffits are favorite locations. A nest caught early, when it’s still small and has only a few wasps, is much easier and safer to deal with than a mature colony. Keep outdoor food and drinks covered, since sugary liquids attract foraging wasps. Clean up spills promptly.
If you find an established nest and need to remove it, observe from at least 10 to 15 feet away to identify the wasps’ flight path, then stay out of it. Plan your approach for nighttime, when wasps are less active and most of the colony is on the nest. Wear thick, loose-fitting clothing with sleeves and pant legs tucked and sealed. If the wasps become defensive during removal, walk calmly and quickly away from the nest. Don’t swat at them, as fast arm movements signal a threat and provoke more stings.
If the nest is in a high-traffic area, near a doorway, or in a spot where children play, and you’re not comfortable removing it yourself, a pest control professional can handle it with less risk to everyone involved.