White-Gloved Howdy vs Pale Evening Dun
Side-by-side species comparison
| Attribute | White-Gloved Howdy | Pale Evening Dun |
|---|---|---|
| Scientific Name | Isonychia sadleri | Heptagenia adaequata |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Isonychiidae | Heptageniidae |
| Size | 12-16 mm | 8-12 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
White-Gloved Howdy
Named for the white tips of its forelegs resembling gloves. Nymphs are powerful swimmers found in fast-flowing Appalachian streams.
Did You Know?
The distinctive white-tipped forelegs are visible even in flight, giving rise to the fanciful common name.
Pale Evening Dun
A flat-bodied mayfly whose nymphs press tightly against rocks in swift currents. Adults emerge at dusk during summer months.
Did You Know?
Its extremely flattened body allows it to resist currents that would sweep away most other insects.