Epomis Ground Beetle vs Cascades Stonefly
Side-by-side species comparison
| Attribute | Epomis Ground Beetle | Cascades Stonefly |
|---|---|---|
| Scientific Name | Epomis dejeani | Doroneuria theodora |
| Order | Coleoptera | Plecoptera |
| Family | Carabidae | Perlidae |
| Size | 14-20 mm (adults) | 22-30 mm |
| Habitat | Ponds & Lakes | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | Europe, Middle East | North America |
| Conservation | Least Concern | Least Concern |
Epomis Ground Beetle
A beetle whose larvae lure and devour frogs — a rare case of predator-prey role reversal. The larva waggles its antennae to attract an amphibian, then latches on and feeds.
Did You Know?
This is one of the only known cases where an insect larva regularly preys on vertebrates — the larvae have a near 100% success rate against attacking frogs.
Cascades Stonefly
A large predatory stonefly endemic to Cascade Range streams. Nymphs inhabit cold boulder-strewn torrents at moderate elevations.
Did You Know?
Adults drum their abdomens on streamside surfaces to communicate with potential mates.