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Megarhyssa macrurus
Wasp-like; bright orange and yellow. Transparent black wings. About 1 inch in diameter with very long ovipositor (which means it is a female).
Rural SW Pennsylvania
Thanks for the ID, Aaron. Been quite busy lately so am just getting around to updating the spotting.
Ichneumon Wasp
http://bugguide.net/node/view/150
There are quite a few of them to sort through. I hope you can find the species! She is lovely.