Elm Bark Beetle vs North American Horntail

Side-by-side species comparison

Attribute Elm Bark Beetle North American Horntail
Scientific Name Scolytus multistriatus Tremex columba
Order Coleoptera Hymenoptera
Family Curculionidae (Scolytinae) Siricidae
Size 2–3.5 mm 25–50 mm
Habitat Woodlands Woodlands
Diet Wood Feeders Wood Feeders
Regions Europe, North America Eastern North America
Conservation Not Evaluated Not Evaluated

Elm Bark Beetle

A small bark beetle that is the primary vector of Dutch elm disease in North America. It creates distinctive brood galleries under elm bark.

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Did You Know?

It spreads the fungus Ophiostoma novo-ulmi, which has wiped out millions of elm trees worldwide.

North American Horntail

A large horntail wasp found across eastern North America. It attacks dead and dying hardwood trees such as beech, maple, and elm.

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Did You Know?

The parasitoid wasp Megarhyssa macrurus uses its extremely long ovipositor to reach horntail larvae deep inside wood.