Cascades Stonefly vs Skimmer Stonefly
Side-by-side species comparison
| Attribute | Cascades Stonefly | Skimmer Stonefly |
|---|---|---|
| Scientific Name | Doroneuria theodora | Acroneuria abnormis |
| Order | Plecoptera | Plecoptera |
| Family | Perlidae | Perlidae |
| Size | 22-30 mm | 20-30 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | North America | Eastern North America |
| Conservation | Least Concern | Least Concern |
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.
Skimmer Stonefly
A large predatory stonefly widespread in eastern North American rivers. Adults skim across the water surface during egg-laying flights.
Did You Know?
Female skimmer stoneflies bounce across the water surface while releasing eggs, appearing to skip like a stone.