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Photo © wingedwolfpsion, some rights reserved
Fontenelle Forest NE (Google, OSM) Details Hide details

Description

Another species of giant ichneumon, sharing the same stump with Megarhyssa atrata. A dozen of these were searching the wood beetle holes on the stump, and laying eggs.

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Comments & Identifications

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stump stabber - Photo (c) Ken-ichi Ueda, some rights reserved (CC BY-NC)
kueda's ID: stump stabber (Megarhyssa macrurus)

Nice one. There are only a handful of species in this genus, and I think only this and M. greenei have yellow chevrons on the side of the abdomen. M. greenei should not have that dusky patch in the wings (I think), so I believe this is M. macrurus.

Posted by kueda over 3 years ago (Flag)
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stump stabber - Photo (c) Ken-ichi Ueda, some rights reserved (CC BY-NC)
wingedwolfpsion's ID: stump stabber (Megarhyssa macrurus)
Posted by wingedwolfpsion over 3 years ago (Flag)
347 thumb

Nice, thanks. I love the Megarhyssas, they're amazing to watch.

Posted by wingedwolfpsion over 3 years ago (Flag)
10164 thumb

Wikipedia says they oviposit starting June. It is interesting that you observed an early one. I also observed an individual ovipositing: https://vimeo.com/71611503

Posted by uzaysezen almost 2 years ago (Flag)
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stump stabber - Photo (c) Ken-ichi Ueda, some rights reserved (CC BY-NC)
wingedwolfpsion's ID: stump stabber (Megarhyssa macrurus)
stump stabber - Photo (c) Ken-ichi Ueda, some rights reserved (CC BY-NC)
Community ID: stump stabber (Megarhyssa macrurus)
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kueda 1 person agrees
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