Hey, I saw this in my mom’s garden today and I promptly ran in and googled on the expression "what kind of bug is that" – and I ended up at your site and I learned it was a dobsonfly. W00t! Anyway, this fellow was maybe 7" from jaw-tip to wing-tip and the antenna were 6" across. He was spotted in Stowe, Pennsylvania, which is in the south eastern part of the state.
I guess we chose our site’s name wisely. We have always maintained that everyone wants to know “What’s That Bug?” Glad we could be helpful. Your photo is pretty impressive.