Horned Passalus vs Oak Processionary Moth
Side-by-side species comparison
| Attribute | Horned Passalus | Oak Processionary Moth |
|---|---|---|
| Scientific Name | Odontotaenius disjunctus | Thaumetopoea processionea |
| Order | Coleoptera | Lepidoptera |
| Family | Passalidae | Notodontidae |
| Size | 28-37 mm | 25-35 mm wingspan |
| Habitat | Woodlands | Woodlands |
| 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.
Did You Know?
Adults chew wood into pulp and feed it to their larvae, one of the few beetles to show true parental care.
Oak Processionary Moth
A moth whose caterpillars march nose-to-tail in long processions along tree branches.
Did You Know?
Its caterpillar hairs cause severe allergic reactions and rashes in humans.