New Zealand Stonefly vs Yellow Sally
Side-by-side species comparison
| Attribute | New Zealand Stonefly | Yellow Sally |
|---|---|---|
| Scientific Name | Zelandoperla decorata | Isoperla fulva |
| Order | Plecoptera | Plecoptera |
| Family | Gripopterygidae | Perlodidae |
| Size | 15-25 mm | 8-12 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Herbivores | Omnivores |
| Regions | Oceania (New Zealand) | Europe |
| Conservation | Least Concern | Least Concern |
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.
Yellow Sally
A bright yellow stonefly common in European upland streams. Nymphs are omnivorous, feeding on both algae and small invertebrates.
Did You Know?
The vivid yellow color serves no known warning function and fades quickly in preserved specimens.