Thread-waisted Wasp vs Emerald Ash Borer Parasite

Side-by-side species comparison

Attribute Thread-waisted Wasp Emerald Ash Borer Parasite
Scientific Name Ammophila sabulosa Spathius agrili
Order Hymenoptera Hymenoptera
Family Sphecidae Braconidae
Size 16-24 mm 3-5 mm
Habitat Beaches & Coastal Woodlands
Diet Predators Parasitoids
Regions Europe, Asia East Asia, Eastern North America
Conservation Least Concern Least Concern

Thread-waisted Wasp

An elegant wasp with an extremely narrow petiole and red-banded abdomen. It hunts caterpillars and carries them clasped beneath its body to sandy burrows.

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Did You Know?

It uses a small pebble as a tool to tamp down the sand plug sealing its burrow, one of the earliest documented cases of tool use in insects.

Emerald Ash Borer Parasite

A parasitoid wasp from China released in North America to combat the devastating emerald ash borer beetle. Females drill through bark to reach host larvae.

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Did You Know?

It was approved for release in the US in 2007 as part of an emergency effort to save North American ash trees.