New Zealand Caddisfly vs Marbled Sedge

Side-by-side species comparison

Attribute New Zealand Caddisfly Marbled Sedge
Scientific Name Olinga feredayi Hydropsyche contubernalis
Order Trichoptera Trichoptera
Family Conoesucidae Hydropsychidae
Size 8-12 mm 12-18 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Omnivores
Regions New Zealand Europe
Conservation Least Concern Least Concern

New Zealand Caddisfly

A stony-cased caddisfly endemic to New Zealand streams. Larvae are important grazers found in virtually all clean New Zealand rivers.

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Did You Know?

It is the most commonly encountered caddisfly in New Zealand freshwater surveys.

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.