Marbled Sedge vs Spotted Sedge

Side-by-side species comparison

Attribute Marbled Sedge Spotted Sedge
Scientific Name Hydropsyche contubernalis Hydropsyche siltalai
Order Trichoptera Trichoptera
Family Hydropsychidae Hydropsychidae
Size 12-18 mm 10-14 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Omnivores
Regions Europe Europe
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.

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Did You Know?

Marbled sedge larvae are territorial and will aggressively defend their net-spinning sites from rivals.

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.