Dark Hendrickson Mayfly vs Western Fishfly
Side-by-side species comparison
| Attribute | Dark Hendrickson Mayfly | Western Fishfly |
|---|---|---|
| Scientific Name | Leptophlebia cupida | Neohermes filicornis |
| Order | Ephemeroptera | Megaloptera |
| Family | Leptophlebiidae | Corydalidae |
| Size | 8-12 mm | 40-55 mm wingspan |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Predators |
| Regions | North America | Western North America |
| Conservation | Least Concern | Least Concern |
Dark Hendrickson Mayfly
A dark-bodied spring mayfly important to trout anglers in the Northeast. Nymphs inhabit leaf packs and debris in slow to moderate stream sections.
Did You Know?
It often emerges alongside Ephemerella subvaria, and the two species together form the famed Hendrickson hatch.
Western Fishfly
A western North American fishfly with feathery antennae and brownish wings. Adults are attracted to lights near streams where their larvae develop.
Did You Know?
Fishflies are distinguished from dobsonflies by their feathery antennae and lack of massive mandibles in males.