Strong Casemaker Caddisfly vs Western Grannom Caddis
Side-by-side species comparison
| Attribute | Strong Casemaker Caddisfly | Western Grannom Caddis |
|---|---|---|
| Scientific Name | Odontocerum albicorne | Brachycentrus occidentalis |
| Order | Trichoptera | Trichoptera |
| Family | Odontoceridae | Brachycentridae |
| Size | 12-18 mm | 9-12 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | Europe | Europe |
| Conservation | Least Concern | Least Concern |
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.
Western Grannom Caddis
A widespread European caddisfly forming mass emergences in spring on alkaline rivers. Larvae build four-sided tapering cases and filter-feed in riffles.
Did You Know?
Spring Grannom hatches on English chalk streams can darken the sky with millions of emerging adults.