Horned Passalus vs Hop Flea Beetle

Side-by-side species comparison

Attribute Horned Passalus Hop Flea Beetle
Scientific Name Odontotaenius disjunctus Psylliodes attenuata
Order Coleoptera Coleoptera
Family Passalidae Chrysomelidae
Size 28-37 mm 2-3 mm
Habitat Woodlands Gardens
Diet Wood Feeders Herbivores
Regions Eastern North America Europe
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.

Hop Flea Beetle

A small bronze flea beetle that feeds on hops and hemp. Can cause economic damage to hop gardens. Adults create characteristic small round holes in leaves.

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Did You Know?

Has been associated with cannabis cultivation since ancient times, with records dating back centuries.