Silverfish vs Gray Silverfish

Side-by-side species comparison

Attribute Silverfish Gray Silverfish
Scientific Name Lepisma saccharinum Ctenolepisma longicaudatum
Order Zygentoma Zygentoma
Family Lepismatidae Lepismatidae
Size 10-15mm 10-15 mm
Habitat Indoors Underground
Diet Omnivores Omnivores
Regions Worldwide Europe
Conservation Least Concern Least Concern

Silverfish

A primitive wingless insect with a silvery scaled body and three tail filaments. A common household inhabitant.

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Did You Know?

Has existed in essentially the same form for 400 million years making it one of the oldest surviving insect designs.

Gray Silverfish

An invasive silverfish species spreading rapidly through northern Europe. It is larger and more uniformly gray than the common silverfish.

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Did You Know?

It has become a major household pest in Scandinavia since the 2000s.