Small-headed Stonefly vs Strong Casemaker Caddisfly
Side-by-side species comparison
| Attribute | Small-headed Stonefly | Strong Casemaker Caddisfly |
|---|---|---|
| Scientific Name | Perlodes microcephala | Odontocerum albicorne |
| Order | Plecoptera | Trichoptera |
| Family | Perlodidae | Odontoceridae |
| Size | 15-22 mm body | 12-18 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Detritivores |
| Regions | Europe | Europe |
| Conservation | Least Concern | Least Concern |
Small-headed Stonefly
A large spring-emerging stonefly found in clean upland rivers. Nymphs are predatory, feeding on mayfly and midge larvae. An important bioindicator species.
Did You Know?
Nymphs require the cleanest, most oxygen-rich water of any stonefly, making them sensitive pollution indicators.
Strong Casemaker Caddisfly
A caddisfly that builds smooth, slightly curved sand-grain cases up to 20 mm long. Larvae inhabit cool, clean streams with gravel and cobble substrates.
Did You Know?
The cases are so precisely constructed they were once thought to be the work of marine worms rather than insects.