Grannom Caddisfly vs Seychelles Cascader
Side-by-side species comparison
| Attribute | Grannom Caddisfly | Seychelles Cascader |
|---|---|---|
| Scientific Name | Brachycentrus subnubilus | Zygonyx hookeri |
| Order | Trichoptera | Odonata |
| Family | Brachycentridae | Libellulidae |
| Size | 8-12 mm | 5-6.5 cm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Predators |
| Regions | Europe | Seychelles |
| Conservation | Least Concern | Endangered |
Grannom Caddisfly
A small dark caddisfly that produces massive spring hatches on European rivers. Larvae build distinctive square-sectioned cases from silk and plant fibers.
Did You Know?
Grannom hatches are so dense on some rivers that local people historically swept up mounds of dead adults to use as fertilizer.
Seychelles Cascader
A large dragonfly endemic to the Seychelles that breeds in fast-flowing streams and waterfalls. Adults hawk insects over cascading water.
Did You Know?
It is one of only two dragonfly species found exclusively in the Seychelles archipelago.