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Greene's Giant Ichneumonid Wasp
Megarhyssa greenei
Megarhyssa greenei is a species of large ichneumon wasps. It is known from the United States and Canada. It is very similar in appearance to Megarhyssa macrurus, but the latter species has a relatively longer ovipositor (about 2x the total body length, where greenei is only slightly greater than 1x), and usually has more extensive dark wing markings. M. greenei also lacks the dark striping on the face present on M. macrurus.
From the article Megarhyssa greenei on Wikipedia (CC BY-SA), quoted section by section
Description
It is very similar in appearance to Megarhyssa macrurus, but the latter species has a relatively longer ovipositor (about 2x the total body length, where greenei is only slightly greater than 1x), and usually has more extensive dark wing markings. M. greenei also lacks the dark striping on the face present on M. macrurus.
Wikipedia: “Description and identification”
What it does
M. greenei is a parasitoid wasp, and its host is Tremex columba, a sawfly. Females must find a larva of this species, and lay an egg close by or on it. The larva of Megarhyssa devours it, it pupates under the bark of trees, and it emerges as an adult one year later.
Wikipedia: “Ecology”
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Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
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Every page naming Megarhyssa greenei in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 126250.