
''Megarhyssa atrata'' is a species of large ichneumon wasp. It is known from North America, where it is found from Quebec, Michigan, Ohio and North and South Carolina to Florida. Adults are on wing from May to July. The larvae are parasitoids of the larvae of the woodwasp ''Tremex columba'' in dead deciduous trees.
Similar species: Wasps, Bees, Sawflies And Ants
By Christine Young
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Uploaded Feb 3, 2022. Captured Jun 2, 2021 10:13 in 281 Main St S, Woodbury, CT 06798, USA.
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