Silverfish

Lepisma saccharina (commonly called the fishmoth, urban silverfish, silverfish or carpet shark) is a small, wingless insect typically measuring from a half to one inch (12–25 mm). Its common name derives from the animal’s silvery light grey and blue colour, combined with the fish-like appearance of its movements, while the scientific name indicates the silverfish’s diet of carbohydrates such as sugar or starches. It belongs to the basal insect order Thysanura.

As with many colorless or nearly colorless invertebrates, silverfish inhabit dark or damp areas such as kitchen cupboards of houses, bathroom sinks, and tubs. They can sometimes inhabit dry papery areas such as old books and newspaper stacks or be found high on ceilings in bathrooms, bedrooms, etc.