Embossed Stonefly vs Tube-Making Caddis
Side-by-side species comparison
| Attribute | Embossed Stonefly | Tube-Making Caddis |
|---|---|---|
| Scientific Name | Paragnetina immarginata | Psychomyia flavida |
| Order | Plecoptera | Trichoptera |
| Family | Perlidae | Psychomyiidae |
| Size | 18-25 mm | 5-8 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Gall Makers |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
Embossed Stonefly
A large patterned stonefly of clean eastern streams with raised body markings. Nymphs are top predators among stream cobble invertebrate communities.
Did You Know?
Nymphs moult up to 30 times before reaching adulthood, far more than most aquatic insects.
Tube-Making Caddis
A small caddisfly whose larvae build silken tubes cemented to rock surfaces in rivers. The tubes create a network of galleries on submerged stones.
Did You Know?
Entire rock surfaces can be covered in a patchwork of silken tubes built by dense colonies.