Not sure what you're dealing with? Start with the size, the color, and where you spotted it — indoors near food and water usually points to roaches or ants, while wood shavings or hollow-sounding trim can mean termites or carpenter ants. Each pest below links to a full identification page with photos, habits, and what actually gets rid of it. If you're still not sure, or the pest is a wasp, hornet, or anything that stings, skip the guesswork — (919) 606-8686 — we'll identify it for free on your inspection visit.
Ants
10 guidesTrail-followers, scavengers, and structural nesters — from sugar ants to fire ants. The Triangle has an unusually diverse ant population, and species ID is the first step in choosing the right treatment.
Fire Ant
Solenopsis invicta
Aggressive reddish-orange ants with a painful stinging bite that builds dome-shaped mounds.
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Pharaoh Ant
Monomorium pharaonis
Tiny pale yellow ants that bud into new colonies when sprayed — never use repellent insecticides.
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Odorous House Ant
Tapinoma sessile
Brown ants that smell like rotten coconut when crushed; love sweets and form wide foraging trails.
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Little Black Ant
Monomorium minimum
Jet-black, smaller than most household ants; nests in masonry and wall cavities with multiple queens.
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Thief Ant
Solenopsis molesta
Tiny pale ants that nest beside other ant colonies and steal their brood; easy to confuse with pharaoh ants.
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Raspberry Crazy Ant
Nylanderia fulva
Erratic-running reddish-brown ants that displace native ants, form supercolonies, and short out electronics.
Identification only
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Pavement Ant
Tetramorium immigrans
Dark brown ants that pile soil at sidewalk cracks; forage indoors for grease, sweets, and meats.
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Acrobat Ant
Crematogaster spp.
Heart-shaped abdomen raised over the head when threatened; nests in moist wood and foam insulation.
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Harvester Ant
Pogonomyrmex spp.
Large red ants of the western US with one of the most painful insect stings known to science.
Identification only
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Argentine Ant
Linepithema humile
Light-brown invasive ants that form vast supercolonies and displace native species.
View guideCockroaches
3 guidesAllergen-spreading, fast-breeding kitchen and bathroom invaders. Durham's warm, humid summers keep roach populations active nearly year-round, especially near water and food sources.
German Cockroach
Blattella germanica
The #1 indoor roach — light brown with two dark stripes; triggers asthma, breeds explosively.
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American Cockroach
Periplaneta americana
Large reddish-brown roach (a.k.a. "palmetto bug") from sewers, drains, and commercial basements.
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Smokybrown Cockroach
Periplaneta fuliginosa
Glossy mahogany-brown roach common in southern climates; strong flier, attracted to lights.
View guideRodents
3 guidesMice that chew wires, contaminate food, and squeeze through dime-sized gaps. Fall's first cool nights reliably push Triangle rodents indoors looking for warmth and shelter.
House Mouse
Mus musculus
Small greyish-brown mouse that squeezes through quarter-inch gaps; chews wires, spreads disease.
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Norway Rat
Rattus norvegicus
Large brown burrowing rat found in urban Durham and Raleigh sewers, alleys, and around dumpsters.
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Roof Rat
Rattus rattus
Sleek climbing rat that nests in attics, palm trees, and dense vegetation — spreading inland from coastal NC.
View guideFlies & Flying Pests
4 guidesHouseflies, fruit flies, mosquitoes, cluster flies, cicadas — anything with wings and a buzz. Most breed in moisture or decaying organic matter that's easy to overlook.
House Fly
Musca domestica
Grey fly with four dark thoracic stripes; mechanical vector for salmonella, E. coli, and dysentery.
Identification only
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Fruit Fly
Drosophila melanogaster
Tiny tan-brown flies with red eyes that breed in overripe produce, fermenting liquids, and drains.
Identification only
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Cluster Fly
Pollenia rudis
Sluggish dark-grey flies that overwinter inside attics and walls in large clusters.
Identification only
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Cicada
Cicadidae family
Large stout-bodied insects with transparent veined wings; males produce the famous buzzing song.
Identification only
View guideStinging Insects
3 guidesYellow jackets, wasps, and hornets — painful, sometimes life-threatening. Correct species ID matters here more than almost any other pest category, since risk levels vary sharply.
Yellow Jacket
Vespula spp.
Aggressive yellow-and-black scavenger wasps; sharp bands, smooth body, painful repeated stings.
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Paper Wasp
Polistes spp.
Slender brown-yellow wasps with long dangling legs; build umbrella-shaped paper nests under eaves.
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Hornet (Bald-Faced)
Dolichovespula maculata
Black with ivory-white markings; build large grey papery aerial nests in trees and eaves.
View guideSpiders
5 guidesFrom harmless cellar spiders to medically significant widows and recluses. Most Triangle spider sightings are the harmless end of that spectrum, but a few genuinely warrant caution.
Black Widow
Latrodectus mactans
Glossy black female with red hourglass on underside; neurotoxic venom — seek medical care if bitten.
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Brown Recluse
Loxosceles reclusa
Uniform light-brown spider with dark violin shape on back; necrotic venom can cause open ulcers.
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Cellar Spider
Pholcus phalangioides
Pale tan body with extremely long thin legs; harmless and actually preys on other spiders.
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Common House Spider
Parasteatoda tepidariorum
Mottled tan-brown spider that builds tangled cobwebs in corners; harmless beneficial predator.
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Wolf Spider
Lycosidae family
Robust hairy brown-grey spider that hunts on the ground instead of building webs; not medically significant.
View guideBiting Pests
3 guidesBed bugs, ticks, fleas — pests that feed on blood and cause itching, welts, or disease. Early identification keeps a small problem from becoming a much bigger one.
Mosquito
Culicidae family
Slender biting flies that vector West Nile, Zika, and other diseases; breed in standing water.
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Bed Bug
Cimex lectularius
Flat reddish-brown blood feeders that hide in mattress seams. Castle offers inspection only, not treatment.
Inspection only
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Deer Tick
Ixodes scapularis
Tiny reddish-brown tick with black legs; primary Lyme disease vector in the eastern US.
View guideOccasional Invaders
7 guidesSilverfish, earwigs, stink bugs, centipedes — sneak in when weather changes. They're rarely destructive, but large numbers usually point to an exterior gap worth sealing.
Silverfish
Lepisma saccharinum
Metallic silver teardrop-shaped insects that eat paper, glue, and starches in damp dark spaces.
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Earwig
Forficula auricularia
Dark reddish-brown insects with rear pincers; nocturnal, harmless to humans, despite the old myth.
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Boxelder Bug
Boisea trivittata
Black with three red-orange thorax stripes; clusters on sunny walls in fall trying to overwinter inside.
Identification only
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Stink Bug (BMSB)
Halyomorpha halys
Shield-shaped mottled brown bug; major agricultural pest, indoor nuisance, releases pungent odor when crushed.
Identification only
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House Centipede
Scutigera coleoptrata
Fast yellow-grey predator with 15 pairs of long banded legs; preys on roaches and silverfish.
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Millipede
Diplopoda class
Cylindrical dark brown segmented arthropod with two pairs of legs per segment; harmless detritivore.
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House Cricket
Acheta domesticus
Light yellow-brown crickets that chirp at night; chew fabric and paper, attracted to warmth.
Identification only
View guideWood-Destroying
3 guidesSubterranean termites, carpenter ants, and borer beetles — silent structural damage. NC State Extension entomology guidance points to an annual inspection for homes in our region.
Carpenter Ant
Camponotus pennsylvanicus
Large black ants that excavate smooth galleries in moisture-damaged wood — a sign of structural issues.
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Subterranean Termite
Reticulitermes spp.
The #1 wood-destroying pest in the US — colonies of millions silently consume structural timber.
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Powderpost / Borer Beetle
Lyctus / Anobium spp.
Small reddish-brown beetles whose larvae tunnel through hardwood floors and structural timber for years.
View guideFabric & Pantry
3 guidesClothes moths and pantry moths that ruin garments and contaminate dry goods. Both are more common in Durham homes than most people expect, especially in closets and pantries.
Clothes Moth
Tineola bisselliella
Small straw-yellow moth whose larvae chew irregular holes in wool, cashmere, silk, and fur.
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Indian Meal Moth (Pantry Moth)
Plodia interpunctella
Small two-toned moth that contaminates flour, cereal, dried fruit, and pet food in pantries.
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Beetles (Coleoptera)
Coleoptera order
Largest insect order — huge variety; some are pantry pests, some lawn pests, some structural.
View guideFrom identification to next steps
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Castle Exterminators is family-owned and based in Durham. We've been identifying and treating Triangle pests since 2011. Get a free in-person inspection or just text us a clear photo.