Short-Tailed Stonefly vs Giant Stonefly
Side-by-side species comparison
| Attribute | Short-Tailed Stonefly | Giant Stonefly |
|---|---|---|
| Scientific Name | Brachyptera risi | Pteronarcys californica |
| Order | Plecoptera | Plecoptera |
| Family | Taeniopterygidae | Pteronarcyidae |
| Size | 8-14 mm | 30-50 mm body |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Herbivores |
| Regions | Europe | North America |
| Conservation | Least Concern | Least Concern |
Short-Tailed Stonefly
A medium-sized early-emerging stonefly with notably short cerci. It hatches in late winter and early spring across European rivers.
Did You Know?
It is one of the first insects to emerge each year, often appearing while rivers still have ice margins.
Giant Stonefly
Large aquatic insects whose nymphs require pristine, cold, oxygen-rich streams. Adults are poor fliers and stay near water. Important food source for trout.
Did You Know?
Stonefly nymphs are so sensitive to water pollution that their presence is used by scientists as a living indicator of water quality — no stoneflies means polluted water.