Lake Stonefly vs Grannom Caddisfly
Side-by-side species comparison
| Attribute | Lake Stonefly | Grannom Caddisfly |
|---|---|---|
| Scientific Name | Megaleuctra complicata | Brachycentrus subnubilus |
| Order | Plecoptera | Trichoptera |
| Family | Leuctridae | Brachycentridae |
| Size | 8-14 mm | 8-12 mm |
| Habitat | Mountains | Rivers & Streams |
| Diet | Detritivores | Detritivores |
| Regions | North America | Europe |
| Conservation | Near Threatened | Least Concern |
Lake Stonefly
A rare stonefly found in cold mountain lake outlets and spring-fed streams.
Did You Know?
Its restricted cold-water habitat makes it vulnerable to climate warming.
Grannom Caddisfly
A small dark caddisfly that produces massive spring hatches on European rivers. Larvae build distinctive square-sectioned cases from silk and plant fibers.
Did You Know?
Grannom hatches are so dense on some rivers that local people historically swept up mounds of dead adults to use as fertilizer.