Britain has more than 600 species of spiders, all of them harmless to man. Most arachnids (spiders) are predatory, feeding mainly on insects and they are extremely beneficial invertebrates, especially in the garden. Sadly, millions of perfectly rational people are terrified of spiders, so we must provide the most effective means of removal without resorting to killing the spiders. The best means of removal is containment and release.
Spiders: Description & Life Cycle
There are a number of spiders that stray into our homes. None of them are in the least bit dangerous and all should be treated with great care and released back into the garden if possible.