Ichneumon Wasp vs Green-striped Darner

Side-by-side species comparison

Attribute Ichneumon Wasp Green-striped Darner
Scientific Name Megarhyssa macrurus Aeshna verticalis
Order Hymenoptera Odonata
Family Ichneumonidae Aeshnidae
Size 25-50 mm body plus 100+ mm ovipositor 63-72 mm
Habitat Woodlands Woodlands
Diet Parasitoids Omnivores
Regions North America North America
Conservation Least Concern Least Concern

Ichneumon Wasp

A large parasitoid wasp with an extremely long, thread-like ovipositor that can exceed the length of its body. Females drill through solid wood to reach their host larvae deep inside.

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Did You Know?

The female can somehow detect horntail larvae vibrations through several centimeters of solid wood and then drill her flexible ovipositor to reach them with remarkable accuracy.

Green-striped Darner

A large darner of eastern North America with prominent green thoracic stripes. It flies late in the season and is often seen patrolling woodland edges.

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Did You Know?

It is one of the latest-flying darners in eastern North America, active into late October.