Long-tailed Giant Ichneumon vs Diamondback Moth Parasitoid

Side-by-side species comparison

Attribute Long-tailed Giant Ichneumon Diamondback Moth Parasitoid
Scientific Name Megarhyssa atrata Diadegma semiclausum
Order Hymenoptera Hymenoptera
Family Ichneumonidae Ichneumonidae
Size 30-50 mm body, ovipositor up to 130 mm 4-6 mm
Habitat Woodlands Farmland
Diet Wood Feeders Parasitoids
Regions North America Europe, Asia
Conservation Least Concern Least Concern

Long-tailed Giant Ichneumon

A large dark-bodied ichneumonid wasp found in eastern North America. Females bore through bark to parasitize pigeon tremex horntail larvae.

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Did You Know?

Multiple females often congregate on the same dead tree, drilling simultaneously for hosts.

Diamondback Moth Parasitoid

A small ichneumon wasp that is the most important natural enemy of the diamondback moth, a major global brassica pest. Females parasitize caterpillars with a quick ovipositor strike.

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Did You Know?

So effective at controlling diamondback moth that pesticide-free brassica production depends on this species.