Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Giant Ichneumon Wasps

Megarhyssa macrurus


There were three female wasps (?) clinging to the bark of a pine tree. The largest one was perched above the other two, and she did not have her ovipositor inserted into the bark. She, and another one flew off, leaving behind the final one that continued to insert her eggs. When she had finished, she retracted her ovipositor, and cleaned it thoroughly with her back legs.

1 Species ID Suggestions

Giant Ichneumon Wasps
Megarhyssa macrurus Species Megarhyssa macrurus - BugGuide.Net

Sign in to suggest organism ID

1 Comment

ForestDragon 7 years ago

Amazing find! These wasps parasitizes Tremex columba larvae, the Pigeon Tremex, which happens to be another type of wasp. The larvae are quite large and live in the wood of the trees.

Here is some info on the Pigeon Tremex:

Kansas, USA

Spotted on Jun 13, 2014
Submitted on Jun 14, 2014

Noah Guardians
Noah Sponsors

Join the Project Noah Team Join Project Noah Team