New Zealand Caddisfly vs Weighted Casemaker

Side-by-side species comparison

Attribute New Zealand Caddisfly Weighted Casemaker
Scientific Name Olinga feredayi Goera pilosa
Order Trichoptera Trichoptera
Family Conoesucidae Goeridae
Size 8-12 mm 9-13 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Detritivores
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.

Weighted Casemaker

A caddisfly that attaches heavy ballast stones to the sides of its case for stability. Larvae are found in fast-flowing stony streams.

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Did You Know?

The ballast stones can weigh several times more than the larva itself, preventing displacement by floods.