Saddle-Case Caddisfly vs Weighted Casemaker
Side-by-side species comparison
| Attribute | Saddle-Case Caddisfly | Weighted Casemaker |
|---|---|---|
| Scientific Name | Glossosoma conformis | Goera pilosa |
| Order | Trichoptera | Trichoptera |
| Family | Glossosomatidae | Goeridae |
| Size | 6-9 mm | 9-13 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Detritivores |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
Saddle-Case Caddisfly
A small caddisfly whose larvae build distinctive saddle-shaped cases from tiny stones. When it pupates, it cuts the case free from the rock and seals itself inside.
Did You Know?
Saddle-case caddisfly larvae graze algae so efficiently that they can create visible clean patches on otherwise algae-covered stream rocks.
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.
Did You Know?
The ballast stones can weigh several times more than the larva itself, preventing displacement by floods.