Kingdom Animalia (animals) Eumetazoa (metazoans) Bilateria (bilaterally symmetrical animals) Protostomia (protostomes) Ecdysozoa Arthropoda (arthropods) Hexapoda Class Insecta (insects) Order Zygentoma Family Lepismatidae (silverfish) Genus Lepisma Species Lepisma saccharina (silverfish)
