Horned Passalus vs Desert Longhorn Beetle

Side-by-side species comparison

Attribute Horned Passalus Desert Longhorn Beetle
Scientific Name Odontotaenius disjunctus Crossidius hirtipes
Order Coleoptera Coleoptera
Family Passalidae Cerambycidae
Size 28-37 mm 12-20 mm
Habitat Woodlands Meadows
Diet Wood Feeders Pollen Feeders
Regions Eastern North America North America
Conservation Least Concern Least Concern

Horned Passalus

A large, shiny black beetle with a small horn on its head, found in rotting logs. It lives in family groups where adults and larvae communicate by stridulation.

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Did You Know?

Adults chew wood into pulp and feed it to their larvae, one of the few beetles to show true parental care.

Desert Longhorn Beetle

A hairy, brightly marked longhorn beetle of the American Southwest. Adults visit desert wildflowers for pollen and nectar.

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Did You Know?

Its larvae take up to three years to develop inside the roots of rabbitbrush plants.