Rock Caddisfly vs Large Alpine Stonefly
Side-by-side species comparison
| Attribute | Rock Caddisfly | Large Alpine Stonefly |
|---|---|---|
| Scientific Name | Goera calcarata | Perla grandis |
| Order | Trichoptera | Plecoptera |
| Family | Goeridae | Perlidae |
| Size | 8-12 mm | 20-33 mm body length |
| Habitat | Rivers & Streams | Mountains |
| Diet | Omnivores | Omnivores |
| Regions | Europe | Europe, Alps, Pyrenees |
| 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.
Did You Know?
The calcareous case material provides partial camouflage against the pale limestone streambed.
Large Alpine Stonefly
One of the largest European stoneflies, found in clean mountain rivers. Its nymphs take several years to develop in cold water.
Did You Know?
Nymphs may take up to four years to complete development in cold alpine waters.