Embossed Stonefly vs Mountain Stonefly
Side-by-side species comparison
| Attribute | Embossed Stonefly | Mountain Stonefly |
|---|---|---|
| Scientific Name | Paragnetina immarginata | Protonemura montana |
| Order | Plecoptera | Plecoptera |
| Family | Perlidae | Nemouridae |
| Size | 18-25 mm | 6-10 mm body length |
| Habitat | Rivers & Streams | Mountains |
| Diet | Predators | Herbivores |
| Regions | North America | Europe, Alps, British mountains |
| Conservation | Least Concern | Least Concern |
Embossed Stonefly
A large patterned stonefly of clean eastern streams with raised body markings. Nymphs are top predators among stream cobble invertebrate communities.
Did You Know?
Nymphs moult up to 30 times before reaching adulthood, far more than most aquatic insects.
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.