Silverfish belong to a primitive order of insects which moult as adults, and have segmented bodies.
Each female silverfish lays approx 100 eggs in her lifetime and in a variety of locations.
Humidity plays a very important part in the development of silverfish, a relative humidity of 90% being the optimum for the development of the nymphal stage, with an optimal temperature for development is 22 - 27oc with a relative humidity of 75 - 95% which is why silverfish are often found around cookers, ovens and fires where the hot warm air becomes humid.
We are finding more and more silverfish in apartment blocks where the heating is controlled from a single point and as such the temperature would be higher than if the heating was in a normal house.
Silverfish are not known to be harmful to man and cannot bite or sting.
Their life span and speed of development is like all insect subject to temperature, humidity, food etc. The following is only a guide
Egg 19 - 40 days
Nymph 90 - 120 days
Adult 1 - 3 years
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