Yellow Sally Stonefly vs Brown Drake Mayfly
Side-by-side species comparison
| Attribute | Yellow Sally Stonefly | Brown Drake Mayfly |
|---|---|---|
| Scientific Name | Isoperla grammatica | Ephemera simulans |
| Order | Plecoptera | Ephemeroptera |
| Family | Perlodidae | Ephemeridae |
| Size | 8-14 mm | 14-20 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Europe | North America |
| Conservation | Least Concern | Least Concern |
Yellow Sally Stonefly
A common European stonefly with a distinctive yellow body, emerging in late spring on clean rivers. It is a well-known species among European fly anglers.
Did You Know?
Yellow sally stoneflies drum their abdomens on surfaces to produce vibrations that attract mates, a behavior unique to stoneflies.
Brown Drake Mayfly
A large brownish mayfly with mottled wings that produces dramatic evening hatches on trout streams. Nymphs burrow in sandy and silty streambeds.
Did You Know?
Brown drake hatches occur over just a few days each year, creating some of the most spectacular dry-fly fishing of the season.