Subject: Never seen before
June 9, 2014 8:43 pm
This is an odd bug I have never seen flying around before. It looked like it was trying to drill into a stump the other day when it was noticed. If you know what this is and if it’s dangerous, an answer would be greatly appreciated.
Your inquiry is perfectly timed since we have just posted an image of two males Stump Stabbers which we believe are awaiting the emergence of a female. This is a Stump Stabber, a female Giant Ichneumon in the genus Megarhyssa and she is laying eggs. The eggs will hatch into larvae that feed on the wood boring larvae of Wood Wasps, like the Pigeon Horntail. Stump Stabbers are beneficial and not considered dangerous. They are not aggressive and we have never heard of anyone being pierced by the impressive ovipositor, which can be as long as five inches. It is designed to lay eggs, not to sting.