October Caddis vs Arctic Caddisfly
Side-by-side species comparison
| Attribute | October Caddis | Arctic Caddisfly |
|---|---|---|
| Scientific Name | Dicosmoecus gilvipes | Apatania zonella |
| Order | Trichoptera | Trichoptera |
| Family | Limnephilidae | Apataniidae |
| Size | 20-28 mm | 6-9 mm |
| Habitat | Rivers & Streams | Ponds & Lakes |
| Diet | Herbivores | Omnivores |
| Regions | North America | Arctic Scandinavia, Iceland, Greenland, Svalbard, Arctic Canada |
| Conservation | Least Concern | Least Concern |
October Caddis
A large orange-bodied caddisfly that hatches in autumn on western North American rivers. It is one of the most important late-season food sources for steelhead and salmon.
Did You Know?
October caddis larvae build massive cases from pebbles and can be so abundant that they visibly alter the streambed substrate.
Arctic Caddisfly
A small, hairy-winged caddisfly with dark brown wings held tent-like over the body. Larvae build portable cases from sand grains and small stones. It is one of the most northerly distributed caddisflies in the world.
Did You Know?
Some Arctic populations of this caddisfly reproduce by parthenogenesis, with females producing offspring without mating.