Glacial Stonefly vs Yellow Stonefly
Side-by-side species comparison
| Attribute | Glacial Stonefly | Yellow Stonefly |
|---|---|---|
| Scientific Name | Leuctra alpina | Isoperla dicala |
| Order | Plecoptera | Plecoptera |
| Family | Leuctridae | Perlodidae |
| Size | 6-9 mm body length | 9-13 mm |
| Habitat | Mountains | Rivers & Streams |
| Diet | Detritivores | Predators |
| Regions | Alps, Pyrenees | North America |
| Conservation | Least Concern | Least Concern |
Glacial Stonefly
A small, slender stonefly found in the coldest alpine headwater streams. Its needle-like wings are rolled tightly around its body at rest.
Did You Know?
Its rolled-wing resting posture gives the family its common name of needle flies.
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.