Great Purple Hairstreak vs Lunate Ichneumon

Side-by-side species comparison

Attribute Great Purple Hairstreak Lunate Ichneumon
Scientific Name Atlides halesus Megarhyssa greenei
Order Lepidoptera Hymenoptera
Family Lycaenidae Ichneumonidae
Size 32-50 mm wingspan 25-40 mm body, ovipositor up to 80 mm
Habitat Woodlands Woodlands
Diet Nectar Feeders Parasitoids
Regions Southern United States from California to the Atlantic coast North America
Conservation Least Concern Least Concern

Great Purple Hairstreak

The largest hairstreak in North America with brilliant iridescent blue upperside wings and a bright red-orange abdomen. Its underside is dark with metallic blue and red spots near the tails.

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Did You Know?

Its caterpillars feed only on mistletoe, and females seek out this parasitic plant high in oak canopies to lay their eggs.

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.