Trico Mayfly vs Quill Gordon Mayfly
Side-by-side species comparison
| Attribute | Trico Mayfly | Quill Gordon Mayfly |
|---|---|---|
| Scientific Name | Tricorythodes stygiatus | Epeorus pleuralis |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Leptohyphidae | Heptageniidae |
| Size | 3-6 mm | 10-14 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | North America | Eastern North America |
| Conservation | Least Concern | Least Concern |
Trico Mayfly
A tiny mayfly that forms enormous morning spinner falls over calm streams and rivers. Males have distinctive white bodies with black thoraxes.
Did You Know?
Trico spinner falls create such dense blankets of spent mayflies on the water surface that trout gorge themselves to satiation.
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.