Giant Salmonfly vs Springfly
Side-by-side species comparison
| Attribute | Giant Salmonfly | Springfly |
|---|---|---|
| Scientific Name | Pteronarcys princeps | Isoperla signata |
| Order | Plecoptera | Plecoptera |
| Family | Pteronarcyidae | Perlodidae |
| Size | 35-50 mm | 9-13 mm |
| Habitat | Mountains | Rivers & Streams |
| Diet | Detritivores | Predators |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
Giant Salmonfly
A massive stonefly of western mountain rivers with a three-year nymphal life cycle. Nymphs feed on decomposing leaf material in cold streams.
Did You Know?
Adults are among the largest flying insects in North America and can barely sustain flight due to their weight.
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.