Green Sedge vs Little Sister Sedge

Side-by-side species comparison

Attribute Green Sedge Little Sister Sedge
Scientific Name Rhyacophila dorsalis Cheumatopsyche campyla
Order Trichoptera Trichoptera
Family Rhyacophilidae Hydropsychidae
Size 10-14 mm 7-10 mm
Habitat Rivers & Streams Rivers & Streams
Diet Predators Omnivores
Regions Europe, Asia North America
Conservation Least Concern Least Concern

Green Sedge

A free-living caddisfly larva that does not build a case, instead roaming the streambed as an active predator. Adults have greenish wings.

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Did You Know?

Unlike most caddisflies, green sedge larvae are caseless predators that hunt like underwater wolves among the stream cobbles.

Little Sister Sedge

A small net-spinning caddisfly widespread in warm-water streams. Larvae tolerate moderate enrichment better than most Hydropsychidae.

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Did You Know?

Larvae vibrate their bodies to increase water flow through their catch-nets.