Cahill Mayfly vs Black-winged Damselfly
Side-by-side species comparison
| Attribute | Cahill Mayfly | Black-winged Damselfly |
|---|---|---|
| Scientific Name | Stenacron interpunctatum | Calopteryx atrata |
| Order | Ephemeroptera | Odonata |
| Family | Heptageniidae | Calopterygidae |
| Size | 8-12 mm | 55-68mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Predators |
| Regions | North America | Asia |
| 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.
Black-winged Damselfly
A large damselfly where males have entirely black iridescent wings with a metallic blue-green body. Females have dark smoky-brown wings. It inhabits clean streams in East Asia.
Did You Know?
In Japan it is called 'haguro-tonbo' (black-winged dragonfly) and is considered a symbol of good fortune.