Brushleg Mayfly vs Dark Hendrickson Mayfly
Side-by-side species comparison
| Attribute | Brushleg Mayfly | Dark Hendrickson Mayfly |
|---|---|---|
| Scientific Name | Isonychia bicolor | Leptophlebia cupida |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Isonychiidae | Leptophlebiidae |
| Size | 12-18 mm | 8-12 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Detritivores |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
Brushleg Mayfly
A large, fast-swimming mayfly with forelegs fringed with bristles for filter feeding. Nymphs inhabit swift riffles of large streams and rivers.
Did You Know?
Unlike most mayflies, nymphs crawl out of water onto rocks to emerge as adults rather than hatching at the surface.
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.