Order Zygentoma – Silverfish


4 UK species, 3 genera. Silverfish belong to a primitive order of insects called Zygentoma which also encompasses the firebrats. Once in an order called Thysanura, the Archaeognatha (bristletails) were recognised as a separate order of insects to avoid confusion.


Silverfish Lepisma saccharina
Silverfish
Lepisma saccharina