Springfly vs Hooked Stonefly
Side-by-side species comparison
| Attribute | Springfly | Hooked Stonefly |
|---|---|---|
| Scientific Name | Isoperla signata | Agnetina capitata |
| Order | Plecoptera | Plecoptera |
| Family | Perlodidae | Perlidae |
| Size | 9-13 mm | 20-30 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | Europe | Eastern North America |
| Conservation | Least Concern | Least Concern |
Springfly
A spring-emerging stonefly of fast-flowing European streams. Nymphs are active hunters that pursue prey among streambed gravels.
Did You Know?
Males locate females by producing species-specific vibrations that travel through the substrate.
Hooked Stonefly
A large, patterned stonefly of eastern North American rivers with distinctive hooked anal gills. Nymphs are active nocturnal predators under cobbles.
Did You Know?
Its nymphs are nocturnal, hiding under rocks by day and actively hunting at night.