What's That Bug? does not endorse extermination

Subject: unknown bugs
Location: Belleville Ontario Canada
May 23, 2012 7:41 pm
Hi, i found these 2 bugs in my wood pile do you know what they are? and would they sting you?
Signature: thanks Pam

Stump Stabbers: Giant Ichneumons

Hi Pam,
This is a marvelous photo of two female Giant Ichneumons in the genus
Megarhyssa, probably Megarhyssa macrurus, and they are using their lengthy ovipositors to lay eggs beneath the surface of these stumps.  The larval Giant Ichneumons parasitize the larvae of a Wood Wasp known as the Pigeon Horntail.  Giant Ichneumons are also commonly called Stump Stabbers.  They will not sting you, however, we concede that it is possible that if they are carelessly handled, the ovipositor might pierce the skin.

Megarhyssa macrurus females ovipositing

What's That Bug? does not endorse extermination
Location: Canada

One Response to Stump Stabbers stabbing a stump!!!

  1. Oh my goodness! This must be what I saw the other day; I watched it fly from the woods and I said, “what the heck was that!”

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