Yellow Stonefly vs Glacial Stonefly
Side-by-side species comparison
| Attribute | Yellow Stonefly | Glacial Stonefly |
|---|---|---|
| Scientific Name | Isoperla dicala | Leuctra alpina |
| Order | Plecoptera | Plecoptera |
| Family | Perlodidae | Leuctridae |
| Size | 9-13 mm | 6-9 mm body length |
| Habitat | Rivers & Streams | Mountains |
| Diet | Predators | Detritivores |
| Regions | North America | Alps, Pyrenees |
| Conservation | Least Concern | Least Concern |
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.
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.