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Megarhyssa atrata
Photos © Amy Wilson; Suburban backyard, Woodbridge, VA; July 2011    

Stump Stabber Ichneumon Wasp
Megarhyssa atrata

Order: Hymenoptera (Ants, Bees, Wasps and Sawflies)
Superfamily: Ichneumonoidea (Braconids and Ichneumons)
Family: Ichneumonidae (Ichneumon Wasps)

Size: Can be up to 3 inches long. The female's ovipositor can be as much as 4 inches long.

Habitat: Deciduous forests