Red wasps are one of the most common stinging insects you’ll encounter around homes in Arkansas. They belong to the paper wasp genus Polistes, and the two species most often called “red wasps” in the state are Polistes carolina and Polistes rubiginosus. Both are reddish-brown with darker wings, typically about an inch long, and they build the familiar open-celled paper nests you find under eaves, porch ceilings, and deck railings.
How to Identify Red Wasps
Red wasps are easy to distinguish from most other stinging insects in Arkansas. Their bodies are a deep reddish-brown, sometimes closer to rust or mahogany, and their wings are dark, often appearing nearly black. They have the classic paper wasp silhouette: a narrow waist, long legs that dangle during flight, and a slender body that’s noticeably less stocky than a yellowjacket or hornet. Adults measure roughly ¾ to 1 inch in length.
The nests are the other giveaway. Red wasps build open, umbrella-shaped nests made of chewed wood fiber mixed with saliva, creating a papery gray or brown material. The hexagonal cells are visible from below, and you can often see larvae inside. Nests are usually small compared to a yellowjacket colony, housing anywhere from a dozen to a few hundred wasps at peak season. You’ll find them attached to sheltered horizontal surfaces: the underside of eaves, porch roofs, window frames, mailboxes, playground equipment, and the inside of open sheds or barns.
Yearly Colony Cycle in Arkansas
Red wasps follow a predictable four-phase cycle that maps neatly onto Arkansas seasons. In early spring, typically March through April as temperatures warm, young mated females (called foundresses) emerge from overwintering spots like attics, wall voids, or bark crevices. Each foundress starts building a new nest, either alone or sometimes cooperating with other females. This founding phase is when you first notice small, quarter-sized nests appearing around your home.
Once the first batch of eggs hatches and matures into worker females, the colony enters its worker phase. These workers take over foraging, nest expansion, and larval care, freeing the foundress to focus on egg-laying. Through late spring and summer the nest grows steadily. By midsummer the colony enters its reproductive phase, producing new queens and males that leave the nest to mate. After these reproductives disperse, the original colony declines. Workers die off through fall, and only the newly mated queens survive to overwinter and restart the cycle.
This means nest activity in Arkansas peaks from June through September. By late October or November, most colonies are abandoned. The empty nests won’t be reused the following year, though new foundresses sometimes build right next to an old one.
Are Red Wasps Aggressive?
Red wasps sting to defend themselves and their nest, but they’re less aggressive than yellowjackets or hornets. They won’t chase you across a yard or swarm in large numbers. When they do sting, usually only one or a few wasps respond at a time. The most common trigger is getting too close to a nest, especially if you accidentally bump or vibrate the surface it’s attached to. Mowing near a low nest, reaching into a mailbox, or painting under an eave are classic scenarios.
Unlike bees, red wasps don’t leave a stinger behind, which means a single wasp can sting you more than once. Sting incidents across North America peak in August and September, when colonies are at their largest and reproductive wasps are more active and mobile.
What a Red Wasp Sting Feels Like
On the Schmidt Sting Pain Index, a scale developed by entomologist Justin Schmidt to rate insect stings, paper wasps score a 1.5 out of 4. Schmidt described the sensation as “burning, throbbing and lonely. A single drop of superheated frying oil landed on your arm.” That’s moderate pain, sharper than a honeybee sting but well below something like a bullet ant or tarantula hawk.
For most people, the pain fades within 15 to 30 minutes, though localized swelling, redness, and itching can last a day or two. In roughly 10% of cases, a large local reaction develops where swelling spreads farther from the sting site and lingers longer. This is uncomfortable but not dangerous on its own. Systemic allergic reactions, where the body responds beyond the sting area, happen in about 3% of adults and up to 1% of children.
Treating a Red Wasp Sting
Because wasps don’t leave a stinger, there’s nothing to remove. Wash the sting site with soap and warm water, then apply a cold pack to reduce swelling and pain. Over-the-counter pain relievers and oral antihistamines can help with lingering discomfort and itching. If swelling at the site persists beyond a couple of days, an antihistamine regimen may help, but it’s worth getting medical advice at that point.
Watch for signs of anaphylaxis, which can develop within minutes to an hour of a sting. Warning signs include difficulty breathing or wheezing, a swollen tongue or throat tightness, difficulty speaking or a hoarse voice, persistent dizziness or collapse, and hives or swelling of the face, lips, or eyes. In babies and young children, look for paleness, floppiness, or unresponsiveness. Any of these symptoms require emergency medical attention. If someone is stung multiple times in one incident (more than 10 stings for adults, more than 5 for children), that also warrants a trip to the emergency room regardless of allergic history.
Keeping Red Wasps Away From Your Home
Prevention works better than removal once nests are established and populated. In early spring, check the spots where nests typically appear: under eaves, along porch ceilings, behind shutters, inside open garages, and around light fixtures. Small founding-stage nests with just one or two wasps can be knocked down with a long stick or sprayed at dusk when the foundress is on the nest and less active.
Sealing entry points into attics, soffits, and wall voids reduces overwintering sites and makes your home less attractive to foundresses in the first place. Keeping outdoor trash cans sealed and cleaning up fallen fruit from trees also cuts down on foraging visits, since red wasps are drawn to both protein sources (caterpillars and other insects) and sugary foods.
For larger, established nests in summer, treating at dusk or dawn when most wasps are on the nest and less active is the safest approach. Aerosol wasp sprays designed for paper wasps allow you to stand 10 to 15 feet away. If a nest is in a hard-to-reach location or you’ve had allergic reactions to stings in the past, professional pest control is the safer option. The University of Arkansas System Division of Agriculture publishes MP144, a regularly updated guide to insecticide recommendations for household pests in the state, available free online through the UA Extension website.
The Upside of Red Wasps
Red wasps are genuinely useful in a garden or yard. They’re predators that feed caterpillars, beetle larvae, and other soft-bodied insects to their developing young. A single colony can consume a significant number of garden pests over a summer. They also visit flowers and contribute to pollination, though they’re far less efficient at it than bees. If a nest is in a low-traffic area of your property, like a high eave or the back corner of a shed, leaving it alone through the season and removing it after the colony dies off in fall is a reasonable strategy that lets you benefit from the pest control without the sting risk.