Light Cahill Mayfly vs Small Minnow Mayfly
Side-by-side species comparison
| Attribute | Light Cahill Mayfly | Small Minnow Mayfly |
|---|---|---|
| Scientific Name | Heptagenia solitaria | Callibaetis ferrugineus |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Heptageniidae | Baetidae |
| Size | 9-13 mm | 7-11 mm |
| Habitat | Rivers & Streams | Ponds & Lakes |
| Diet | Omnivores | Detritivores |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
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.
Small Minnow Mayfly
A mottled brown mayfly common in still waters across North America. Nymphs are excellent swimmers that mimic small minnows.
Did You Know?
It can produce up to three generations per year in warm climates.