Giant Ichneumon

Strange Bug?
Location: Zumbro Falls, MN (Mississippi River Vally)
August 14, 2011 3:59 pm
We where camping and found this bug on a almost completely dead tree. What we though was a large wasp but after a closer look it wasn’t a wasp but some wasp/mayfly looking thing, we stood there and ask a lot of people walking by, and everyone was stumped, can you help?
Signature: ?no idea?

Giant Ichneumon Ovipositing

Hi Lars,
This Giant Ichnuemon,
Megarhyssa atrata, is in the process of laying eggs.  She is a parasitoid member of the wasp and bee order, and her prey are the wood boring larvae of a wood wasp known as the Pigeon Horntail.

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