In Ohio there are two main groups of spiders that pose a potential hazard to humans; the recluse spiders and the widow spiders. These spiders are relatively rare in our state. The two species of recluse spiders found in Ohio (brown recluse – Loxosceles reclusa, Mediterranean recluse – Loxosceles rufescens). 
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Spiders found in Ohio include 19 unique species from 48 confirmed sightings based on contributions made by Spider ID members. It is important to remember that spiders seen in Ohio are not bound by the territorial lines decided on by humans, therefore their distribution is subject to change. Occasionally, spiders can be found well outside of their known range due to being intentionally or accidentally transported by humans in cars, luggage, and other belongings.

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