Cottonwood Stag Beetle vs Black Horntail

Side-by-side species comparison

Attribute Cottonwood Stag Beetle Black Horntail
Scientific Name Lucanus mazama Xeris spectrum
Order Coleoptera Hymenoptera
Family Lucanidae Siricidae
Size 22-35 mm 15–32 mm
Habitat Rivers & Streams Forests
Diet Wood Feeders Wood Feeders
Regions Central and Southern United States Europe, North America, Asia
Conservation Least Concern Not Evaluated

Cottonwood Stag Beetle

A medium-sized North American stag beetle found near river bottoms. Males have moderately large mandibles.

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Did You Know?

They are most commonly found near cottonwood and willow trees along river corridors.

Black Horntail

A slender black horntail wasp that breeds in dead conifer wood across the Northern Hemisphere. It is frequently found in fire-damaged forests.

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Did You Know?

It is typically one of the first wood-boring insects to colonize trees killed by forest fires.