Eastern Salmonfly vs Yellow Stonefly
Side-by-side species comparison
| Attribute | Eastern Salmonfly | Yellow Stonefly |
|---|---|---|
| Scientific Name | Pteronarcys biloba | Isoperla dicala |
| Order | Plecoptera | Plecoptera |
| Family | Pteronarcyidae | Perlodidae |
| Size | 30-40 mm | 9-13 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Predators |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
Eastern Salmonfly
A large dark stonefly of Appalachian streams that emerges in late spring. Nymphs process leaf litter and are important detritivores.
Did You Know?
Nymphs retain functional gills throughout development, unlike many stoneflies that lose them with age.
Yellow Stonefly
A bright yellow springfly found in clean Appalachian streams. Nymphs are predatory on small invertebrates in gravel substrates.
Did You Know?
Males produce vibrational signals by rubbing their abdomen against the substrate, audible through special sensors.