Like I said, I haven't found any myself, but I have a friend who did his thesis work on the high elevation Plethodon in WV and I've read up on them so I'd be able to distinguish them from similar species if I found any. P. wehrlei should have noticeably webbed feet and are supposed to be more of a milky grayish color as opposed to the darker black of most glutinosus, cylindraceus, etc. It's subjective, but they're also supposed to be more flattened and slender. Everyone I know who has found them talks like P. wehrlei and P. punctatus would be difficult to confuse with glutinosus or any of its sibling species if you're very familiar with salamanders.