Cascades Stonefly vs Striped Alder Sawfly
Side-by-side species comparison
| Attribute | Cascades Stonefly | Striped Alder Sawfly |
|---|---|---|
| Scientific Name | Doroneuria theodora | Hemichroa crocea |
| Order | Plecoptera | Hymenoptera |
| Family | Perlidae | Tenthredinidae |
| Size | 22-30 mm | 7-9 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Herbivores |
| Regions | North America | North America, Europe |
| 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.
Striped Alder Sawfly
A brightly colored sawfly with an orange body and black markings on the thorax. Larvae are pale yellowish-green with dark dorsal stripes and feed on alder and birch.
Did You Know?
This species can reproduce both sexually and parthenogenetically, with unfertilized eggs developing into males.