Lunate Ichneumon vs Dahlia Longhorn
Side-by-side species comparison
| Attribute | Lunate Ichneumon | Dahlia Longhorn |
|---|---|---|
| Scientific Name | Megarhyssa greenei | Agapanthia dahli |
| Order | Hymenoptera | Coleoptera |
| Family | Ichneumonidae | Cerambycidae |
| Size | 25-40 mm body, ovipositor up to 80 mm | 10-22 mm |
| Habitat | Woodlands | Farmland |
| Diet | Parasitoids | Parasitoids |
| Regions | North America | Europe, Turkey, Iran, Central Asia |
| Conservation | Least Concern | Least Concern |
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.
Did You Know?
It is the smallest of the three North American Megarhyssa species but still impressively large.
Dahlia Longhorn
A medium-sized longhorn with dense olive-green pubescence and a prominent yellow dorsal stripe on the pronotum. It is widely distributed across Europe and the Near East. Larvae develop inside the stems of umbellifers and composites.
Did You Know?
Larvae create a distinctive plug of frass at the base of the stem before pupating inside a silken cocoon.