Lunate Ichneumon vs Totara Longhorn Beetle

Side-by-side species comparison

Attribute Lunate Ichneumon Totara Longhorn Beetle
Scientific Name Megarhyssa greenei Xylotoles costatus
Order Hymenoptera Coleoptera
Family Ichneumonidae Cerambycidae
Size 25-40 mm body, ovipositor up to 80 mm 1-2 cm
Habitat Woodlands Woodlands
Diet Parasitoids Wood Feeders
Regions North America New Zealand
Conservation Least Concern Endangered

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.

Totara Longhorn Beetle

A longhorn beetle endemic to the Chatham Islands of New Zealand. It breeds in dead wood of native Dracophyllum trees.

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Did You Know?

The Chatham Islands have been so heavily deforested that many of their endemic insects are now critically rare.