Rock Caddisfly vs Mother-of-Pearl Caddis

Side-by-side species comparison

Attribute Rock Caddisfly Mother-of-Pearl Caddis
Scientific Name Goera calcarata Glyphotaelius pellucidus
Order Trichoptera Trichoptera
Family Goeridae Limnephilidae
Size 8-12 mm 15-22 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Omnivores Herbivores
Regions Europe Europe
Conservation Least Concern Least Concern

Rock Caddisfly

A caddisfly of limestone streams whose cases incorporate calcareous sand grains and pebble ballast. Larvae scrape algae from rock surfaces.

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Did You Know?

The calcareous case material provides partial camouflage against the pale limestone streambed.

Mother-of-Pearl Caddis

A large European caddisfly with translucent wings that shimmer with iridescence. Larvae construct flat cases from pieces of dead leaves.

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Did You Know?

Larvae cut leaf pieces into precise rectangles to build their distinctive flat cases.