Marbled Sedge vs Arctic Mayfly
Side-by-side species comparison
| Attribute | Marbled Sedge | Arctic Mayfly |
|---|---|---|
| Scientific Name | Hydropsyche contubernalis | Baetis bundyae |
| Order | Trichoptera | Ephemeroptera |
| Family | Hydropsychidae | Baetidae |
| Size | 12-18 mm | 5-8 mm |
| Habitat | Rivers & Streams | Tundra & Arctic |
| Diet | Omnivores | Omnivores |
| Regions | Europe | Arctic Canada, Alaska, northern Scandinavia |
| Conservation | Least Concern | Least Concern |
Marbled Sedge
A net-spinning caddisfly with distinctly marbled wing patterns. It is common in larger European rivers and is tolerant of moderate levels of organic enrichment.
Did You Know?
Marbled sedge larvae are territorial and will aggressively defend their net-spinning sites from rivals.
Arctic Mayfly
A small, delicate mayfly with transparent wings and two long tail filaments. Nymphs are agile swimmers in cold Arctic streams. Adults emerge for a very brief mating flight during the short Arctic summer.
Did You Know?
Adult mayflies live only a few hours to a few days, just long enough to mate and lay eggs before dying.