Identification Guide · By a B.S. Entomologist
Carpenter Ants vs. Termites:
How to Tell the Difference
Two Pests. Two Different Problems. One Phone Call.
Written by Thomas Pray, B.S. Entomology — 40+ years identifying wood-destroying insects on the NH Seacoast.
Thomas Pray, B.S. Entomology · 40 Years Experience
Phone: (207) 451-9451
Guaranteed Carpenter Ant Elimination.
You don't pay if they don't go away.
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The Short Answer
Carpenter ants excavate. Termites eat.
Both insects damage wood. They do it in completely different ways — and confusing one for the other is the most expensive mistake a homeowner can make. Treating a termite problem like an ant problem (or vice versa) wastes money and leaves the real colony untouched while the damage compounds.
On the New Hampshire Seacoast, the answer is almost always carpenter ants. Coastal humidity, old-growth framing in century-old homes, and tree canopy from the Piscataqua to the Lamprey make this region one of the densest carpenter ant zones in New England. Subterranean termites exist here, but they're far less common.
Side-By-Side
The Identification Table
Print this. Walk your property. Then call Thomas if anything matches.
| Trait | Carpenter Ant | Termite |
|---|---|---|
| Waist | Pinched, narrow — clearly segmented | Straight, thick — no visible pinch |
| Antennae | Bent (elbowed) | Straight, bead-like |
| Wings (swarmers) | Two pairs, front larger than back | Two pairs, all equal length |
| Color | Most often jet black; some red-black | Creamy white workers; dark brown swarmers |
| Size | Large — 1/4" to 1/2" | Workers ~1/8"; swarmers ~3/8" |
| What they do to wood | Excavate galleries — do not eat wood | Consume wood as food |
| Gallery appearance | Smooth, clean, sanded-looking tunnels | Rough, packed with mud and fecal pellets |
| Telltale evidence | Frass (sawdust + insect parts) below kick-out holes | Pencil-thick mud tubes on foundations; blistered paint |
| Where you'll find them in NH | Very common — Seacoast humidity + older wood | Uncommon but possible — subterranean species |
| Active season | Spring through late summer; peak May–July | Year-round; swarms in spring |
The Damage Signature
Excavation vs. Consumption
Carpenter ant galleries look like the inside of a sanded canoe — clean, smooth, almost polished. Ants chew through wood to make room for the colony; they don't digest it. The waste falls out of small kick-out holes as frass: a fine, gritty sawdust often mixed with bug parts and insulation fragments. Frass piles under window sills, door frames, or basement beams are the single most reliable sign.
Termite galleries look the opposite — rough, irregular, and packed with mud, soil, and fecal pellets. Subterranean termites build pencil-thick mud tubes climbing from soil up over foundations, sills, and piers. Tap suspect wood: termite-damaged wood sounds hollow and feels soft; carpenter ant-damaged wood often still feels solid until you break into a gallery.
The Precision Difference
Why generic treatment sprays fail
Most pest control companies treat carpenter ants like they treat everything else: a broadcast perimeter spray, an indoor baseboard application, repeat next quarter. That kills the foragers you see — not the queen, not the satellite nests, not the parent colony. The visible ants disappear for a few weeks, then the colony rebuilds.
Ecotech's Precision Pest Control works differently. As an entomologist, Thomas locates the actual nesting site, identifies the satellite colonies feeding it, and treats the exterior at the source. No indoor treatments. No quarterly merry-go-round. The colony collapses, and the guarantee backs it up: you don't pay if they don't go away.
Identification Questions
Carpenter Ant vs. Termite FAQs
- Look at the waist and antennae. Carpenter ants have a pinched waist and bent (elbowed) antennae. Termites have a straight, thick waist and straight antennae. Winged carpenter ants also have two pairs of wings of different sizes; termite swarmers have four wings of equal length.
Don't Let Carpenter Ants Destroy Your Home.
One call solves it. Guaranteed.
Thomas Pray, B.S. Entomology · Owner · 40 Years Experience
