Horned Passalus vs Hagen's Web Spinner

Side-by-side species comparison

Attribute Horned Passalus Hagen's Web Spinner
Scientific Name Odontotaenius disjunctus Oligotoma humbertiana
Order Coleoptera Embioptera
Family Passalidae Oligotomidae
Size 28-37 mm 8.0-11.0 mm
Habitat Woodlands Woodlands
Diet Wood Feeders Wood Feeders
Regions Eastern North America Asia
Conservation Least Concern Not Evaluated

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.

Hagen's Web Spinner

A common web spinner of South and Southeast Asia found under bark and in soil crevices. It reproduces by parthenogenesis in many populations.

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Did You Know?

Many populations consist entirely of females that reproduce without mating, with males being extremely rare or absent.