Thanks, Rob, for your comments. I doing some further checking, I found that the grass spider is often called house spider. I searching www.bugguide.net (a favorite reference of mine), I now believe this is the Greater European House Spider, Greater European House spider Tegenaria duellica . Let me know if you have any further thoughts.
Rob
31-Oct-2007 12:01
This looks to be a Grass Spider very common in Pennsylvania and the north eastern US.