Spiders found in Pennsylvania include 7 unique species from 13 confirmed sightings based on contributions made by Spider ID members. It is important to remember that spiders seen in Pennsylvania 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.
Have you photographed spiders in Pennsylvania?
Please consider submitting pictures to expand our confirmed sightings.