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American House Spider (Parasteatoda tepidariorum)
The American house spider is one of the most common spiders found indoors across North America, recognized by its tangled cobwebs in corners and undisturbed areas. Although venomous, its bite is rarely harmful to humans and it actually helps control other household insects. Despite its beneficial role, large infestations can be unsightly and alarming. Perimeter treatments and web removal are effective in managing populations.