What bug is this?
Not sure what you're dealing with? Answer a few quick questions, where you saw it, what it looks like, its size, whether it has wings, and any signs it left, and this free tool narrows it to the most likely household pest, tells you the feature to confirm it, and what to do next. It's a guide, not a lab diagnosis.
Where did you see it, or what's the main sign?
Pick the closest match — this is usually the biggest clue.
Quick pest ID reference
Common household pests at a glance, the interactive tool above does the real narrowing.
| Pest | Where you'll see it | Quick tell |
|---|---|---|
| Cockroach | Kitchens, bathrooms, at night | Flat oval body, long antennae, scatters from light |
| Ant | Trails along walls and counters | Small, elbowed antennae, pinched waist |
| Termite | Wood, foundations, windows | Straight-waisted swarmers, mud tubes, hollow wood |
| Bed Bug | Mattress seams, headboards | Reddish-brown flat oval; bites in a line |
| Flea & Tick | Ankles, carpet, pet bedding | Tiny, dark, jumps; itchy ankle bites |
| Rodent | Attic, walls, along baseboards | Droppings, gnaw marks, night scratching |
| Wildlife | Attic, roofline, crawl space | Larger animal; noises above the ceiling |
| Spider | Corners, basements, garages | Eight legs, two body parts, webs |
| Wasp & Hornet | Eaves, ground nests | Narrow waist, stinger, papery nest |
| Mosquito | Yards, near standing water | Whining flyer; puffy bites at dawn/dusk |
Pest identification: frequently asked questions
How can I identify a bug in my house?
Note four things: where you saw it or the signs it left, what it looks like (legs, body, color), its size, and whether it has wings. Those clues narrow most household pests to one or two candidates. Our free identifier walks you through it and points to the feature that confirms it.
What is this tiny black bug in my kitchen?
Tiny bugs trailing along kitchen counters are most often ants, while a flat, fast-moving insect that scatters when the light comes on is usually a cockroach. Check for a trail and elbowed antennae (ants) versus a flat oval body and long antennae (roaches).
How do I tell a bed bug from a flea?
Location is the biggest clue. Bed bug bites appear in lines or clusters on skin exposed while sleeping, and the bugs hide in mattress seams. Flea bites cluster low around the ankles and lower legs and almost always trace to a pet in the home.
Is it a termite or a flying ant?
Look at the waist and wings. A flying ant has a pinched, narrow waist, bent antennae, and wings of unequal length. A termite swarmer has a straight, thick waist, straight antennae, and four equal-length wings that break off easily. Termite swarmers indoors warrant a prompt inspection.
What bug bites me at night?
Bites noticed in the morning, in a line on the arms, shoulders, or neck, point to bed bugs. Itchy bites grouped around the ankles suggest fleas. Random puffy welts on exposed skin are usually mosquitoes. The pattern and location tell them apart.
Should I identify the pest myself or call a professional?
Narrowing it down yourself helps you act faster and know what to ask. But a licensed inspector can confirm the exact pest on site, which matters most for termites, bed bugs, rodents, and any spider you suspect is a recluse or widow. This tool is a guide, not a diagnosis.
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