Little Sister Sedge vs Northern Stonefly
Side-by-side species comparison
| Attribute | Little Sister Sedge | Northern Stonefly |
|---|---|---|
| Scientific Name | Cheumatopsyche campyla | Nemoura arctica |
| Order | Trichoptera | Plecoptera |
| Family | Hydropsychidae | Nemouridae |
| Size | 7-10 mm | 6-10 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Herbivores |
| Regions | North America | Arctic Scandinavia, Finland, northern Russia, Iceland, Arctic Canada |
| Conservation | Least Concern | Least Concern |
Little Sister Sedge
A small net-spinning caddisfly widespread in warm-water streams. Larvae tolerate moderate enrichment better than most Hydropsychidae.
Did You Know?
Larvae vibrate their bodies to increase water flow through their catch-nets.
Northern Stonefly
A small, dark brown stonefly with two long cerci at the tip of the abdomen. Adults hold their wings flat over the body. Nymphs develop in cold, well-oxygenated streams and are indicators of clean water.
Did You Know?
Stonefly nymphs are so sensitive to pollution that their presence in a stream is used as an indicator of excellent water quality.