Spotted Sedge vs Grannom Caddisfly
Side-by-side species comparison
| Attribute | Spotted Sedge | Grannom Caddisfly |
|---|---|---|
| Scientific Name | Hydropsyche siltalai | Brachycentrus subnubilus |
| Order | Trichoptera | Trichoptera |
| Family | Hydropsychidae | Brachycentridae |
| Size | 10-14 mm | 8-12 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Detritivores |
| Regions | Europe | Europe |
| Conservation | Least Concern | Least Concern |
Spotted Sedge
A net-spinning caddisfly that constructs silken capture nets in fast-flowing water to filter food from the current. Adults have spotted brown wings.
Did You Know?
Net-spinning caddisfly larvae are such effective filter feeders that they can remove significant amounts of fine particles from stream water.
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.