Pond Olive Mayfly vs Cahill Mayfly
Side-by-side species comparison
| Attribute | Pond Olive Mayfly | Cahill Mayfly |
|---|---|---|
| Scientific Name | Cloeon dipterum | Stenacron interpunctatum |
| Order | Ephemeroptera | Ephemeroptera |
| Family | Baetidae | Heptageniidae |
| Size | 6-9 mm | 8-12 mm |
| Habitat | Gardens | Rivers & Streams |
| Diet | Omnivores | Detritivores |
| Regions | Europe, Asia | North America |
| Conservation | Least Concern | Least Concern |
Pond Olive Mayfly
One of the few mayflies that breeds in still water including garden ponds and rain barrels. Unusually for a mayfly, females are ovoviviparous.
Did You Know?
This is one of the only mayflies that gives birth to live nymphs rather than laying eggs, a unique trait in the order.
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.