Bug Identifier
Silverfish
Community identification

Silverfish

Lepisma saccharinum

Order & Family
Order Zygentoma, Family Lepismatidae
Size
12–19 mm (0.5–0.75 inches) in length
See this bug in the Encyclopedia

Natural Habitat

Damp, dark places with high humidity, such as basements, bathrooms, kitchens, and attics.

Diet & Feeding

Polysaccharides, especially starches and dextrin found in adhesives, paper, book bindings, wallpaper, and clothing. They also consume sugar, flour, and organic debris.

Behavior Patterns

Nocturnal and fast-moving insects that avoid light. They undergo simple metamorphosis (egg, nymph, adult) and are known for their fish-like wiggling motion when running.

Risks & Benefits

They do not bite or transmit diseases to humans but are considered household pests as they can damage books, photos, and textiles. In ecosystems, they provide a benefit by breaking down organic matter.