What Does a Termite Look Like? Termites vs Flying Ants

What does a termite look like?

The answer depends on which member of the colony you find. The eastern subterranean termite, the species most homeowners deal with, has three main forms, and Penn State Extension describes each one ^[1]:

• Workers are creamy white, soft-bodied and rarely seen. They do all the feeding, so they are the ones that damage wood.
• Soldiers are about 1/4 inch long, with an elongated yellowish head and large jaws. They guard breaks in the colony's tunnels.
• Swarmers (winged kings and queens) are dark brown or black, 3/8 to 1/2 inch long, with two pairs of translucent wings of equal length that break off after the swarm.

If you see a pale, soft, ant-sized insect inside damaged wood, it is far more likely to be a termite worker than an ant.

The eastern subterranean termite is the most common termite species in North America ^[2]. The EPA adds that native subterranean termites are the most common type in most of the U.S., while drywood termites and the invasive Formosan termite are less common ^[4]. Formosan swarmers are attracted to lights and fly at dusk, according to UC IPM ^[6].

Why you rarely see the colony itself: it lives underground. NC State reports that an eastern subterranean termite queen typically lays 5,000 to 10,000 eggs a year, that mature colonies average about 300,000 members and can reach several million, and that a colony can take up to a decade to produce its first swarmers ^[2]. Workers reach wood in a house by building mud tubes over soil and foundation walls, which keep them moist and protected. That is why the winged swarmers, which leave the colony to mate, are often the first termites a homeowner ever sees.

How can you tell termites from flying ants?

Look at the antennae, the waist and the wings. Kentucky entomologist Michael Potter sums up the termite side this way: "Termites have straight antennae, a uniformly thickened waist, and wings of equal size" ^[3]. Ants have elbowed antennae, a pinched waist and front wings that are longer than the hind wings.

Feature	Termite swarmer	Flying ant
Antennae	straight, beadlike	elbowed, bent like an L
Waist	broad, no pinch	narrow, pinched
Wings	4 wings of equal size	front wings larger than hind wings
Wing length	about twice the body length	about the body length

Wing length comparison from Penn State Extension ^[1]; antennae, waist and wing shape from NC State Extension and UC IPM ^[5]. Both insects drop their wings after a swarm, so a wingless insect still needs the antennae and waist check.

Carpenter ants cause the most confusion, because they also live in wood. Penn State notes that carpenter ant workers are shiny dark brown to black with elbowed antennae, while termite workers are creamy white with straight, beadlike antennae ^[8]. The damage looks different too. Carpenter ants push coarse, stringy wood shavings out of their nests, often mixed with insect parts, and their galleries are smooth and free of soil; carpenter ants dig in wood but do not eat it. Termite galleries follow the grain and are lined with dried soil. If you find ants, see how to get rid of ants.

How big are termites?

Termites are small. Workers and soldiers are about 1/4 inch long, and swarmers are 3/8 to 1/2 inch including their wings ^[1]. NC State measures eastern subterranean swarmers at roughly 8 to 10 mm from head to wingtip ^[2]. Carpenter ant workers, by comparison, run about 1/4 to 1/2 inch, and their winged reproductives reach about 3/4 inch, according to Penn State.

When do termites swarm, and what does a swarm indoors mean?

Swarming season depends on where you live. In Pennsylvania, swarms usually appear between February and June, most often in late winter or early spring ^[1]. In North Carolina, eastern subterranean termites usually swarm from late spring to late summer on warm days after rain, and can swarm earlier or later depending on the weather ^[2]. Swarmers are drawn to light, so indoors they gather at windows and doors.

Where the swarm comes from matters. The University of Kentucky says "Discovering winged termites indoors almost always indicates an infestation warranting treatment," while a swarm from a stump or woodpile in the yard does not automatically mean the house is infested; swarmers coming up next to the foundation or from an attached porch are a stronger warning ^[3].

Winged termites or piles of their shed wings inside your home are a reason to book a licensed professional inspection, not a reason to panic.

Penn State notes that shed wings are often the only sign of termites in a building ^[1]. Sweep up a few wings or bodies and keep them in a sealed bag or jar so an inspector can confirm what they are.

What other signs show termites are in your house?

Most people never see a termite worker, because they stay hidden. Kentucky calls termites "cryptic creatures" whose infestations "can go undetected for years," and lists these clues ^[3]:

• Mud tubes about as thick as a pencil on foundation walls, piers, sill plates or joists. Breaking one open may show small, creamy white workers, though an empty tube does not prove the colony is gone.
• Damaged wood hollowed out along the grain, with dried soil lining the galleries.
• Tiny holes in drywall or plaster with soil around the edges, or rippled wall coverings.

Penn State adds that wood touching soil or concrete floors is especially at risk, as are areas near furnaces, water heaters and hot water pipes ^[1]. The EPA suggests probing exposed wood for hollow spots with a flathead screwdriver ^[4].

Drywood termites, which live inside wood without soil contact, leave different clues: small kickout holes and hard fecal pellets with six sides and ridges along their length ^[7]. UC IPM describes them mainly in California, so subterranean signs are what most U.S. homeowners should watch for.

Other wood damage has other causes. Large round holes about 1/2 inch across in bare outdoor wood point to carpenter bees, not termites.

What should you do if you think you have termites?

Stay calm and get an expert to look. Kentucky notes that termites damage wood slowly, so taking time to choose a company usually does not cause much additional harm ^[3]. These steps help:

1. Keep a sample of swarmers or wings in a sealed bag, and take clear photos of any mud tubes or damaged wood so every inspector sees the same evidence.
2. Do not break open every mud tube or try to treat the area yourself; an inspector needs to see the activity.
3. Have a licensed pest management professional inspect the house. The EPA says firms offering termite services must be licensed by the state, and you can ask to see the license ^[4].
4. Get inspections and estimates from more than one company before signing.

Our guide on how to get rid of termites compares professional treatments and explains what a homeowner can safely do alone. For other insects, try the bug identifier tool or browse the identification guides.