While the life cycle and mating habits of earwigs vary slightly according to species, the common European earwig offers a fairly clear picture of the reproductive processes that the pests go through in order to procreate.
After mating in the late summer or early fall, females lay 30 to 55 eggs, which they gather and store in a shallow hole. Uniquely, the female will then stand guard over the eggs and coat them with a protective layer of saliva.
Depending on the temperature, the eggs hatch within 20 to 70 days. Newly emerging earwigs are called nymphs and undergo four nymphal instars of development.
Developing earwigs reach adulthood in August or September, when they become sexually mature and start to mate.
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