The females can lay eggs throughout the year. A female can lay around 100 oval eggs in batches of as few as 2 - 3 in crevices and under objects.
The eggs are smooth and white when first laid, but turn wrinkled and brown after a while. The eggs hatch in around 2 weeks and reach maturity in just 3 months, but will not hatch unless humidity is at least 50%.
For the first few months, or until the third moult the silvery scales are absent.
Silverfish are able to regrow legs etc. which have been lost as they moult throughout their lives. They can live for over 3 years.
The males must perform a dance for the female, then he deposits a spermatophore on the ground. Then he attaches signal threads leading from it to guide the female to its whereabouts.
Although some species are parthenogenic.