Lepismatidae is a family of primitive wingless insects with about 190 described species. This family contains the two most familiar members of the order Zygentoma: the silverfish (Lepisma saccharinum) and the firebrat (Thermobia domestica). It is one of five families in the order Zygentoma. Lepismatids are elongated, flattened insects, the majority of which are scavengers. The abdomen is usually clothed in tiny scales and terminates with three "tails" of roughly equal length. The compound eyes are small and well separated. They typically live in warm, damp environments, including indoors. They avoid light.

The following Strepsiptera species are known to parasitise Lepismatidae: Eoxenos laboulbenei on Tricholepisma aureum, Neoasterolepisma wasmanni and N. palmonii; Mengenilla parvula on Sceletolepisma michaelseni; Mengenilla nigritula on Ctenolepisma ciliatum and Ctenolepisma sp.; Mengenilla laevigata, M. quasita, M. spinulosa and M. subnigrescens on C. lineatum; and an unidentified species of Strepsiptera on Mormisma peyerimhoffi. Parasitic Apicomplexa are often found in the intestinal tract, especially the crop, of Lepismatidae. Ctenolepisma lineatum contains on average 15 parasite specimens per animal. Several species of gregarine parasites have been recorded from the intestinal tract of the gray silverfish:

These genera belong to the family Lepismatidae: - Acrotelsa Escherich, 1905 - Acrotelsella Silvestri, 1935 - Afrolepisma Mendes, 1981 - Allacrotelsa Silvestri, 1935 - Anallacrotelsa Mendes, 1996 - Anisolepisma Paclt, 1967 - Apteryskenoma Paclt, 1952 - Asiolepisma Kaplin, 1989 - Ctenolepisma Escherich, 1905 - Desertinoma Kaplin, 1992 - Gopsilepisma Irish, 1990 - Hemikulina Mendes, 2008 - Hemilepisma Paclt, 1967 - Heterolepisma Escherich - Hyperlepisma Silvestri, 1932 - Lepisma Linnaeus, 1758 - Lepismina Gervais, 1844 - Lepitrochisma Mendes, 1988 - Leucolepisma Wall, 1954 - Mirolepisma Silvestri, 1938 - Monachina Silvestri, 1908 - Mormisma Silvestri, 1938 - Namibmormisma Irish, 1989 - Namunukulina Wygodzinsky, 1957 - Nebkhalepisma Irish, 1989 - Neoasterolepisma Mendes, 1988 - Ornatilepisma Irish, 1989 - Panlepisma Silvestri, 1940 - Primacrotelsa Mendes, 2004 - Prolepismina Silvestri, 1940 - Psammolepisma Irish, 1989 - Sabulepisma Irish, 1989 - Sceletolepisma Wygodzinsky, 1955 - Silvestrella Escherich, 1905 - Stylifera Stach, 1932 - Swalepisma Irish, 1989 - Thermobia Bergroth, 1890 - Tricholepisma Paclt, 1967 - Xenolepisma Mendes, 1981 - † Burmalepisma Mendes & Poinar, 2008 Burmese amber, Myanmar, Cenomanian - † Cretalepisma Mendes & Wunderlich, 2013 Burmese amber, Myanmar, Cenomanian - † Onycholepisma Pierce, 1951 - † Paracrotelsa Paclt, 1967 - † Protolepisma Mendes & Poinar, 2013 Dominican amber, Miocene