Great Grey Sedge vs Long-Toed Water Beetle
Side-by-side species comparison
| Attribute | Great Grey Sedge | Long-Toed Water Beetle |
|---|---|---|
| Scientific Name | Arctopsyche grandis | Stenelmis crenata |
| Order | Trichoptera | Coleoptera |
| Family | Hydropsychidae | Elmidae |
| Size | 20-30 mm | 2-3.5 mm |
| Habitat | Mountains | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
Great Grey Sedge
One of the largest net-spinning caddisflies in North America with a wingspan over 40 mm. Larvae build robust catch-nets in powerful mountain torrents.
Did You Know?
Larvae are partially predatory, consuming small invertebrates trapped in their nets alongside organic debris.
Long-Toed Water Beetle
A small riffle beetle with elongated tarsal claws for gripping rocks in fast currents. Both adults and larvae are entirely aquatic.
Did You Know?
Adults can live for several years underwater, far longer than most beetles.