Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
In the laboratory brown recluse spiders live approximately 18-24 months. In houses they may or may not live quite as long. This is a question that is very hard to answer. Currently there are no methods to mark and recapture spiders or determine their longevity in homes over multiple months or multiple years.
