Cahill Mayfly vs Arctic Mayfly
Side-by-side species comparison
| Attribute | Cahill Mayfly | Arctic Mayfly |
|---|---|---|
| Scientific Name | Stenacron interpunctatum | Baetis bundyae |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Heptageniidae | Baetidae |
| Size | 8-12 mm | 5-8 mm |
| Habitat | Rivers & Streams | Tundra & Arctic |
| Diet | Detritivores | Omnivores |
| Regions | North America | Arctic Canada, Alaska, northern Scandinavia |
| Conservation | Least Concern | Least Concern |
Cahill Mayfly
A cream-to-tan colored mayfly found throughout eastern North America. It is named after the classic Light Cahill fly fishing pattern it inspired.
Did You Know?
The Light Cahill fly pattern, inspired by this mayfly, has been a staple of American fly fishing since the 1880s.
Arctic Mayfly
A small, delicate mayfly with transparent wings and two long tail filaments. Nymphs are agile swimmers in cold Arctic streams. Adults emerge for a very brief mating flight during the short Arctic summer.
Did You Know?
Adult mayflies live only a few hours to a few days, just long enough to mate and lay eggs before dying.