American Grannom vs Weedy Water Sedge
Side-by-side species comparison
| Attribute | American Grannom | Weedy Water Sedge |
|---|---|---|
| Scientific Name | Brachycentrus americanus | Leptocerus tineiformis |
| Order | Trichoptera | Trichoptera |
| Family | Brachycentridae | Leptoceridae |
| Size | 9-13 mm | 7-11 mm |
| Habitat | Rivers & Streams | Ponds & Lakes |
| Diet | Omnivores | Detritivores |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
American Grannom
A case-building caddisfly whose larvae attach their cases to rocks in fast current and filter-feed. Cases are chimney-shaped and built from silk and plant fragments.
Did You Know?
Larvae can switch between filter-feeding and scraping algae depending on current speed.
Weedy Water Sedge
A slender caddisfly associated with weedy European lakes and canals. Larvae build cases from fine sand and plant fragments.
Did You Know?
Adults are strongly attracted to light and often appear in large numbers at lakeside lamps.