Small translucent wings collected on a windowsill, on a floor near a door, or on a spider web almost always come from termite swarmers — reproductive termites that shed their wings after emerging. In Virginia this happens from March through June, on warm days after rain. It matters because swarmers are produced only by colonies mature enough to reproduce, which generally means several years of establishment.
Finding the wings is not the beginning of the problem. It is the first visible sign of one that has been running for a while.
This is general information. Identification from a description is never certain. Keep the wings and have a licensed inspector look at them.
Termite or flying ant: the four tells
Both swarm, both shed wings, and both turn up on windowsills in spring. The difference decides whether this is urgent.
| Termite swarmer | Flying ant | |
|---|---|---|
| Wings | four wings of equal length, longer than the body | front wings noticeably longer than hind wings |
| Waist | broad and straight, no pinch | sharply pinched |
| Antennae | straight, slightly beaded | elbowed, bent at an angle |
| Shed wings | detach easily, found in matched piles | less commonly found shed |
The most reliable single check: if you find loose wings all the same size and shape, in a small pile, that is termites. Ant wings come in two sizes.
Wings alone are enough to identify. You do not need to catch the insect.
Why they appear indoors specifically
Swarmers are drawn to light, which is why they collect at windows and doors.
Swarmers emerging inside the structure — from a wall, a ceiling, a window frame, a floor crack — means the colony is in or under the building. This is the finding that matters most.
Swarmers outside on a warm spring day may have flown in from elsewhere. Neighbouring properties, tree stumps, and landscaping timbers all host colonies. It is a reason to look, not by itself a reason to panic.
If you were not present when they emerged, the wings alone will not tell you which happened. An inspector looking at the location often can.
What a swarm actually indicates
A colony produces reproductives once it is mature. In practical terms that means the colony has been established for several years — it did not arrive this spring.
The eastern subterranean termite is the species you are most likely dealing with in Virginia. Colonies live underground and reach wood above ground through mud tubes that preserve the humidity they need. A mature colony can number in the millions and consumes wood continuously, not seasonally.
What that changes for you: the question is not whether to act but how much has already happened where you cannot see.
Species notes for Virginia
Eastern subterranean termite — the common one, swarming March through June, on warm days after rain.
Drywood termites — occasionally in southeastern coastal parts of the state. They do not require soil contact, and their signs differ: pellets rather than mud tubes.
Formosan termites are not established in Virginia as of 2026, with the nearest established zones around Wilmington, North Carolina. Several Virginia pest company pages list them among species local homeowners face. If someone tells you your Virginia home has Formosan termites, ask what supports that identification.
What to do today
Keep the wings. Put a few in a sealed bag or between two pieces of clear tape. This is the single most useful thing you can hand an inspector.
Photograph where you found them, before cleaning, with something for scale.
Note the location precisely. Which window, which room, which floor, and whether they appeared near an interior wall or an exterior one.
Check for the other signs while you are looking: mud tubes on foundation walls, wood that sounds hollow when tapped, paint that bubbles or ripples, doors and windows that have become stiff.
Do not spray. Over-the-counter treatment on visible swarmers accomplishes nothing against a colony that lives elsewhere, and it destroys evidence.
Do not clean up until you have photographed and sampled.
What this means for you specifically
The same pile of wings carries a different consequence depending on your situation.
If you own and live in the home
Damage accumulates whether or not you are looking. Nothing about a swarm requires action within hours, but it does require action.
Your action: book a licensed inspection with someone certified for wood-destroying pests — category 7b under 2VAC5-685-70 — and keep the wings for them.
If you are selling under contract
You now have a deadline that is not yours.
The standard Northern Virginia contract obligates the seller to furnish a wood-destroying insect report dated no more than 90 days before settlement, and to pay for treatment and for repair of damage the report identifies, with written evidence before settlement.
Your action: order the inspection immediately. Treatment is a one-day job; structural repair depends on a contractor's calendar, and that is what threatens settlement dates. The contract clause →
If you are buying
If the seller's report came back clean but you are seeing wings, read the obstructions section of that report. A clean finding covers only what the inspector could reach.
Your action: raise it with your agent now, while the contract still gives you position. Reading the report → · If live activity is found →
If you rent
The landlord's obligation runs through the duty to keep the premises fit and habitable under Va. Code § 55.1-1220. Your duty under § 55.1-1227 is to notify promptly — and delay shifts added cost onto you.
Your action: notify the landlord in writing today, dated, keeping a copy and photographs. Step by step →
Before you call: what costs what
An inspection and a treatment are two separate services with separate prices, and conflating them is the most common way people end up surprised by a bill.
| Typical Virginia range | What it produces | |
|---|---|---|
| Wood-destroying insect inspection and report | $65–$200 | the NPMA-33 form |
| General pest inspection | often free where the company expects to quote treatment | a verbal or written assessment |
| Termite treatment | $500–$2,000; more where damage is extensive | a treatment record |
| Structural repair | quoted by a contractor, frequently the largest of the three | an invoice, not a pest control document |
What is usually free: a quote for treatment, once a company has seen the problem.
What is usually not: the inspection report used in a real estate transaction, and any visit that produces a document rather than a price.
Ask which applies before you book. A company quoting one figure covering both inspection and treatment is not quoting what a sales contract or a lender requires.
Common misunderstandings
"They're outside, so the house is fine." Possibly. Swarmers emerging from inside a wall are the finding that matters, and wings alone do not distinguish the two.
"I only saw a few." Swarmer numbers indoors are limited by how many find their way to a window. It is not a measure of colony size.
"I sprayed them, so it's handled." The swarmers are the visible fraction. The colony is elsewhere.
"It's spring, this is normal." Seasonal, yes. Normal for your house, no — it means a mature colony within flight range, and possibly inside.
"Flying ants look the same." Equal-length wings, straight antennae, no waist pinch. Three checks, done in seconds.
"A clean inspection last year means I'm fine." A report covers visible evidence in accessible areas on one date.
What to ask the inspector
- Can you tell from the location whether these emerged inside the structure?
- Which species is this, and what supports that identification?
- What is the extent of the damage, and what could you not access?
- Liquid treatment or baiting for this situation, and why?
- What is the total cost of treatment, quoted separately from the inspection?
- Do you also complete the NPMA-33 report if I need one for a transaction?
- Under what name is your Virginia pesticide business license held?
The first question is the one that changes everything, and it is worth asking before the visit so the inspector knows to look.
What to have ready
Property address and year built, foundation type — crawl space, basement, or slab — where you found the wings and on which floor, the date, whether you saw them emerge, whether there is prior treatment history, and your settlement date if you are under contract.
Frequently asked questions
When do termites swarm in Virginia? March through June, on warm days after rain, for eastern subterranean termites.
Can I identify them from a photograph? Often yes, if the wings are in focus and something gives scale. Keeping the actual wings is better.
How much does an inspection cost? Roughly $65 to $200 in Virginia depending on region and property size. Treatment is separate and priced separately.
How fast does damage happen? Continuously rather than in bursts. A mature colony consumes wood year-round, which is why years of establishment matter more than a single spring.
Should I get a second opinion? If a treatment quote seems disproportionate to the evidence, a second inspection costs a fraction of the treatment.
Verify before you pay anyone
VDACS maintains a public pesticide search at pesticidesearch.vdacs.virginia.gov and publishes an updated list of licensed pesticide businesses weekly. Wood-destroying pest control is category 7b under 2VAC5-685-70.
Ask which name the license is held under — trade names often differ from the licensed entity. How to check →