Small Spurwing Mayfly vs Light Cahill Mayfly
Side-by-side species comparison
| Attribute | Small Spurwing Mayfly | Light Cahill Mayfly |
|---|---|---|
| Scientific Name | Centroptilum luteolum | Heptagenia solitaria |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Baetidae | Heptageniidae |
| Size | 5-8 mm | 9-13 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | Europe | North America |
| Conservation | Least Concern | Least Concern |
Small Spurwing Mayfly
A tiny, elegant mayfly with a distinctive spur on its hindwing. It is widespread in European streams and rivers with good water quality.
Did You Know?
Unlike most mayflies that swarm over water, small spurwings often emerge individually and drift with the current.
Light Cahill Mayfly
A pale-colored mayfly highly prized by fly fishers for imitating hatches. Nymphs prefer moderate current over gravel substrates.
Did You Know?
The Light Cahill dry fly pattern, designed to mimic this species, has been used since the 1880s.