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 areas such as basements, attics, kitchens, and bathrooms; they prefer environments with 75% to 95% humidity.

Diet & Feeding

General scavengers that consume matter containing polysaccharides, such as starches and dextrin in adhesives. This includes book bindings, carpet, clothing, coffee, dandruff, glue, hair, some paints, paper, photos, plaster, and sugar.

Behavior Patterns

Nocturnal, fast-moving, and avoid light. They undergo hemimetabolous metamorphosis (egg, nymph, adult) and are unique among insects for continuing to molt after reaching adulthood, potentially living up to eight years.

Risks & Benefits

They do not bite humans or spread disease, but they are considered household pests because they can damage books, photographs, and clothing. They also indicate a possible moisture or humidity issue in the home.