Cascades Stonefly vs New Zealand Stonefly
Side-by-side species comparison
| Attribute | Cascades Stonefly | New Zealand Stonefly |
|---|---|---|
| Scientific Name | Doroneuria theodora | Zelandoperla decorata |
| Order | Plecoptera | Plecoptera |
| Family | Perlidae | Gripopterygidae |
| Size | 22-30 mm | 15-25 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Herbivores |
| Regions | North America | Oceania (New Zealand) |
| 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.
New Zealand Stonefly
An endemic New Zealand stonefly found in clean, fast-flowing streams. The aquatic nymphs are important indicators of water quality. Adults are poor fliers and often found resting on streamside vegetation. Stonefly diversity in New Zealand is remarkably high.
Did You Know?
New Zealand stoneflies are such sensitive indicators of water quality that their absence from a stream is a reliable sign of pollution or degradation.