Weighted Casemaker vs Snail-Case Caddisfly
Side-by-side species comparison
| Attribute | Weighted Casemaker | Snail-Case Caddisfly |
|---|---|---|
| Scientific Name | Goera pilosa | Helicopsyche mexicana |
| Order | Trichoptera | Trichoptera |
| Family | Goeridae | Helicopsychidae |
| Size | 9-13 mm | 5-7 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | Europe | North America, Central America |
| Conservation | Least Concern | Least Concern |
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.
Snail-Case Caddisfly
A remarkable caddisfly whose larva builds a coiled sand-grain case resembling a tiny snail shell. Found in warm streams of the American Southwest.
Did You Know?
Cases so closely resemble snail shells that they were originally described as a new genus of freshwater snail.