Green Sedge vs Spotted Sedge

Side-by-side species comparison

Attribute Green Sedge Spotted Sedge
Scientific Name Rhyacophila dorsalis Hydropsyche siltalai
Order Trichoptera Trichoptera
Family Rhyacophilidae Hydropsychidae
Size 10-14 mm 10-14 mm
Habitat Rivers & Streams Rivers & Streams
Diet Predators Omnivores
Regions Europe, Asia Europe
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.

Spotted Sedge

A net-spinning caddisfly that constructs silken capture nets in fast-flowing water to filter food from the current. Adults have spotted brown wings.

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Did You Know?

Net-spinning caddisfly larvae are such effective filter feeders that they can remove significant amounts of fine particles from stream water.