Yellow Sally vs Mountain Stonefly
Side-by-side species comparison
| Attribute | Yellow Sally | Mountain Stonefly |
|---|---|---|
| Scientific Name | Isoperla fulva | Protonemura montana |
| Order | Plecoptera | Plecoptera |
| Family | Perlodidae | Nemouridae |
| Size | 8-12 mm | 6-10 mm body length |
| Habitat | Rivers & Streams | Mountains |
| Diet | Omnivores | Herbivores |
| Regions | Europe | Europe, Alps, British mountains |
| Conservation | Least Concern | Least Concern |
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.
Mountain Stonefly
A small brown stonefly common along mountain brooks and streams. Nymphs feed on fallen leaves in cold, well-oxygenated water.
Did You Know?
Its presence is an indicator of excellent water quality in mountain streams.