Brushleg Mayfly vs Quill Gordon Mayfly
Side-by-side species comparison
| Attribute | Brushleg Mayfly | Quill Gordon Mayfly |
|---|---|---|
| Scientific Name | Isonychia bicolor | Epeorus pleuralis |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Isonychiidae | Heptageniidae |
| Size | 12-18 mm | 10-14 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | North America | Eastern 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.
Quill Gordon Mayfly
A medium-sized flat-bodied mayfly that clings to rocks in fast Appalachian streams. It is one of the first major mayfly hatches of the spring season.
Did You Know?
Quill Gordon nymphs have only two tails instead of the three found in most mayfly species.