Yellow Sally vs Dobsonfly
Side-by-side species comparison
| Attribute | Yellow Sally | Dobsonfly |
|---|---|---|
| Scientific Name | Isoperla fulva | Corydalus cornutus |
| Order | Plecoptera | Neuroptera |
| Family | Perlodidae | Corydalidae |
| Size | 8-12 mm | 40-55 mm body, 125 mm wingspan |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Europe | North America |
| Conservation | Least Concern | Least Concern |
Yellow Sally
A bright yellow stonefly common in European upland streams. Nymphs are omnivorous, feeding on both algae and small invertebrates.
Did You Know?
The vivid yellow color serves no known warning function and fades quickly in preserved specimens.
Dobsonfly
Large insects with intimidating mandibles in males that are actually too large to bite effectively. Aquatic hellgrammite larvae are prized as fishing bait and indicate clean water.
Did You Know?
Male dobsonflies have terrifying mandibles up to 40 mm long, but they are so large the males cannot actually generate enough force to pinch — the females bite harder.