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Earwig vs. Silverfish: Which One Is in My House?
Earwig or silverfish? A side-by-side on looks, behavior, the damage they do, and how to get rid of each.
The quick tell: silverfish are silvery-grey, wingless, teardrop-shaped, and have three long tail bristles and no pincers; earwigs are reddish-brown, longer, and have unmistakable curved pincers at the rear. Silverfish eat paper and starch in damp indoor spots; earwigs eat plants and live mostly outdoors. Neither is dangerous to people.
Earwig vs. silverfish at a glance
| Feature | Silverfish | Earwig |
|---|---|---|
| Color | Silvery-grey, metallic | Reddish-brown to dark brown |
| Size | ¼–¾ inch | ½–1 inch |
| Back end | Three long tail bristles | Two curved pincers (forceps) |
| Wings | None | Most have wings, rarely fly |
| Where | Indoors — damp, dark (bathrooms, garages) | Mostly outdoors; indoors in summer heat |
| Eats | Paper, starch, glue, fabric | Plants, seedlings, decaying matter, insects |
| Active | Night | Night |
| Danger to people | None (no bite) | None (harmless pinch only) |
| Main nuisance | Damages paper, books, fabric | Chews garden plants; invades in numbers |
How to tell them apart in 5 seconds
Look at the tail end. Three thin bristles fanning out means silverfish. Two curved pincers like tongs means earwig. Color is the backup tell: a silvery, metallic sheen means silverfish, while reddish-brown means earwig. Silverfish also have that distinctive teardrop shape and fish-like shimmy when they move; earwigs are longer and more beetle-like.
Why people confuse them
Both are fast, brownish (silverfish can look tan in low light), nocturnal, moisture-loving bugs that turn up in the same bathrooms, garages, and entryways — so a quick glimpse at night is easy to misread. The pincers are the dead giveaway once you get a good look.
What each one means for your home
Finding silverfish indoors usually points to a humidity and stored-paper problem inside the house — they're living and breeding right where you found them. Finding earwigs usually means a large population outdoors that's migrating in; they don't breed inside. That difference changes how you treat each one.
How to get rid of silverfish
Silverfish control is an indoor, moisture-and-food job: drop the humidity, store paper and pantry goods in sealed containers, declutter cardboard, trap, and treat cracks and crevices. See our full guide on how to get rid of silverfish, or have us treat the harborage directly.
Silverfish control in Fresno →How to get rid of earwigs
Earwig control is an outside-in job: cut back damp mulch and cover, dry the perimeter, trap in the garden, seal entry points, and treat the exterior perimeter so the outdoor population stops crossing in. See our full guide on how to get rid of earwigs, or have us treat the source.
Earwig control in Fresno →Earwig vs. silverfish FAQ
Is it a silverfish or an earwig?
Check the back end: three long tail bristles and a silver, metallic sheen means silverfish; two curved pincers and a reddish-brown body means earwig. Earwigs are also noticeably longer.
Do both have pincers?
No — only earwigs have the rear pincers (forceps). Silverfish have three thin tail bristles instead, and no pincers at all.
Which is more harmful, earwigs or silverfish?
Neither harms people. Silverfish damage paper, books, and fabric indoors; earwigs damage garden plants and invade in numbers. The worse one depends on whether your problem is your belongings or your yard.
Do silverfish and earwigs live in the same places?
They overlap in damp indoor spots like bathrooms and garages, which is why they're confused. But silverfish live and breed indoors, while earwigs mainly live outdoors and wander in.
Why do I have both?
Both love moisture, so a humid home with a damp, mulched yard can attract silverfish inside and earwigs from outside at the same time. Reducing moisture indoors and out helps with both.
Not sure which bug you've got? We'll identify and treat it.
Total Pest Control handles both silverfish and earwigs across Fresno and the Central Valley. Call or request a no-cost inspection.