Well, I learned something new today!Well, I would have to disagree with you on that. I am fairly positive that they do have Armadillo in Pennsylvania and have for the last several years. There are plenty of articles online that tell you that they are there. We did not have them here either years ago as well as coyote and fire ants. They migrated from the west and then started heading north. They still may not be over abundant in Pennsylvania. And, even places that they are fairly abundant you will not see them very often so a lot of people still do not realize that they have them. However, when you get one foraging in your yard you will certainly see the damage.