Giant Michigan Mayfly vs Dark Hendrickson Mayfly
Side-by-side species comparison
| Attribute | Giant Michigan Mayfly | Dark Hendrickson Mayfly |
|---|---|---|
| Scientific Name | Hexagenia bilineata | Leptophlebia cupida |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Ephemeridae | Leptophlebiidae |
| Size | 18-28 mm | 8-12 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Detritivores |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
Giant Michigan Mayfly
A large burrowing mayfly with two dark stripes on its thorax. Nymphs dig into soft clay and silt bottoms of large rivers.
Did You Know?
Mass emergences along the Great Lakes have caused road closures due to the slippery accumulation of millions of dead adults.
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.