The long-tailed silverfish (Ctenolepisma longicaudata) is a fast-moving, wingless insect known for feasting on starch, paper, and textiles. Unlike the common silverfish, it prefers drier indoor environments, making it a persistent structural and nuisance pest in homes, libraries, and museums.
Key Facts at a Glance
Physical Appearance: Slender, carrot-shaped body (15–20 mm long) covered in overlapping scales that give it a glimmering light- to dark-grey color.
Distinguishing Feature: It has three extremely long, hair-like appendages at its rear (a central filament and two lateral cerci), which are often as long as its entire body.
Diet: A "food generalist" that thrives on carbohydrates and cellulose. They eat paper, book bindings, wallpaper paste, cotton, and dead insects.Habitat: Hides in dark, narrow crevices during the day. They are well-adapted to modern, climate-controlled buildings.
Lifespan & Molting: Long-lived for an insect; they can live for 5 to 8 years and continue to molt throughout their adult lives.
Reproduction: Reproduction is slow. They take up to 2–3 years to reach sexual maturity and lay a relatively small number of eggs.
