Cuckoo Bee vs Lunate Ichneumon

Side-by-side species comparison

Attribute Cuckoo Bee Lunate Ichneumon
Scientific Name Nomada flava Megarhyssa greenei
Order Hymenoptera Hymenoptera
Family Apidae Ichneumonidae
Size 8-11 mm 25-40 mm body, ovipositor up to 80 mm
Habitat Meadows Woodlands
Diet Pollen Feeders Parasitoids
Regions Europe, Asia North America
Conservation Least Concern Least Concern

Cuckoo Bee

A slender, wasp-like bee with yellow and black banding that lacks pollen-collecting structures. It is a brood parasite that sneaks into the nests of mining bees to lay its eggs.

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Did You Know?

Like cuckoo birds, these bees lay their eggs in the nests of other bee species, where the cuckoo larva kills the host egg and consumes all the stored food.

Lunate Ichneumon

A reddish-brown parasitoid wasp native to North America. It targets horntail larvae in hardwood trees and uses its long ovipositor to reach them.

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Did You Know?

It is the smallest of the three North American Megarhyssa species but still impressively large.