It usually happens on the first genuinely warm, humid day after a spring rain: a cloud of winged insects pouring out of the ground by the porch, or worse — appearing inside, clustered on a window sill trying to get out. In Georgia, that's swarm season, and what you do in the first 24 hours matters more than most homeowners realize.
When swarm season happens in Georgia
Eastern subterranean termites — the species doing almost all the damage in the Atlanta metro — typically swarm in Georgia from March through May, most often on warm daytime hours following rain. A mature colony (usually several years old) releases hundreds or thousands of winged reproductives, called swarmers or alates, whose only job is to fly a short distance, pair up, shed their wings, and start new colonies.
Swarmers are clumsy fliers and most die within hours. The swarm itself is harmless — swarmers don't bite, sting, or eat wood. What the swarm tells you is the important part: somewhere very nearby, a large, mature colony has been quietly feeding for years.
Termite or flying ant? The 30-second check
Spring also brings winged ants, and the two get confused constantly. Grab one (or a clear photo) and check three things:
- Waist: termites have a thick, straight-sided body; ants have a pinched, hourglass waist.
- Antennae: termite antennae are straight, like a string of beads; ant antennae are bent at an elbow.
- Wings: termites carry four equal-length wings, much longer than the body; ants' front wings are visibly longer than the rear pair.
Not sure? Drop a few in a zip-top bag. Identification is part of the free termite inspection — we'd rather tell you it's just ants than have you guess wrong in the other direction.
What an indoor swarm means
Location is diagnosis. A swarm out in the yard — from a stump, a woodpile, an old fence post — means termites live near you, which in Georgia is a given. A swarm inside your home, or piles of shed wings on sills and floors, is different: swarmers emerge close to their colony and are terrible at getting through walls, so an indoor swarm strongly suggests the colony is in or directly under the structure.
One more Georgia note: if you ever see a large swarm at night around porch lights in late spring, mention it when you call — Formosan termites, a more aggressive species found in parts of Georgia, are night swarmers, and that distinction changes the conversation.
What to do (and not do) in the first 24 hours
- Don't spray. Killing swarmers changes nothing — they were going to die anyway, and the colony that produced them is untouched. Spraying just destroys the evidence that helps an inspector.
- Collect samples. A few insects or shed wings in a bag, plus a phone photo of where they emerged.
- Note the exact spot. “Coming out of the baseboard by the water heater” is gold for an inspection.
- Book an inspection. Not because the house will fall down this month — it won't — but because the colony behind an indoor swarm has typically been feeding for years, and every additional season is more silent damage that insurance won't cover.
The calm bottom line
A swarm is not an emergency; it's a deadline. It's the one time each year a hidden colony announces itself, and homeowners who act on it catch problems while they're still treatable for hundreds instead of repairable for thousands. If you're anywhere in our Metro Atlanta service area, the inspection that settles it is free — and if it turns out to be flying ants, we'll happily tell you so and point you to the right fix.