Weighted Casemaker vs Speyer's Cave Beetle
Side-by-side species comparison
| Attribute | Weighted Casemaker | Speyer's Cave Beetle |
|---|---|---|
| Scientific Name | Goera pilosa | Aphaobius milleri |
| Order | Trichoptera | Coleoptera |
| Family | Goeridae | Leiodidae |
| Size | 9-13 mm | 3-5 mm |
| Habitat | Rivers & Streams | Caves |
| Diet | Detritivores | Detritivores |
| Regions | Europe | Austria, Slovenia |
| 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.
Speyer's Cave Beetle
A troglobitic beetle endemic to caves in the eastern Alps. It has a convex body shape and completely lacks eyes.
Did You Know?
It can tolerate near-freezing temperatures in high-altitude caves.