Bug Identifier
Silverfish (often confused with Firebrat)
Community identification

Silverfish (often confused with Firebrat)

Lepisma saccharina

Order & Family
Order: Zygentoma (formerly Thysanura); Family: Lepismatidae
Size
Typically 12–19 mm (0.5–0.75 in) in length, excluding appendages.
See this bug in the Encyclopedia

Natural Habitat

Identifying this as a silverfish based on outline and sheen, they prefer dark, damp, and humid environments. Common indoors in bathrooms, basements, attics, and kitchens.

Diet & Feeding

Carbohydrates such as sugars and starches. They consume paper, photos, book bindings, wallpaper glue, clothing (cotton, linen, silk), and pantry items like flour or oats.

Behavior Patterns

Nocturnal and moves with a distinct wiggling motion resembling a fish. They are fast runners and avoid light. They undergo simple metamorphosis (ametabolous), shedding their skin throughout their adult lives.

Risks & Benefits

Risks: Consider household pests; they can contaminate food and damage property like books, wallpaper, and clothing. They do not bite or spread disease to humans but can induce allergic reactions in some people. Benefits: Minimal, though they act as decomposers in nature.