What's That Bug? does not endorse extermination

Giant Ichneumon land on sternum
Location:  Fairfield, Maine USA
August 27, 2010 11:09 pm
My wife ad I were heading up to our front door when this thing swooped down onto me. It landed on my chest and after a few awkward pictures, it walked up my neck and flew of my ear. It was very long, I would have guessed 5-6 inches, including the ovipositor. Do you think this a Megarhyssa greenei?
James R

Giant Ichneumon

Hi James,
We have never read a good way to distinguish the members of the genus
Megarhyssa from one another, other than that Megarhyssa atrata looks significantly different from the other three relatives.  This might be Megarhyssa greenei, though in our opinion, it seems to most closely resemble Megarhyssa macrurus, which you may view on BugGuide.

Giant Ichnuemon

What's That Bug? does not endorse extermination

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