The Ephemerella Aroni, previously known as Aurivillii and commonly referred to as the large river mayfly, is a top-tier fly fishing bait across Scandinavia. Notable for luring even the largest trout to a frenzy, this fly is a must-have for serious anglers.
- Typically measures between 10 and 13 mm.
- Colour varies from light olive to olive-brown with a rusty hue.
- Dark brown or red-brown appearance as a spinner.
- Thrives in rivers and streams with rocky, mossy bottoms.
- Emerges by ascending to the surface, ideal for dry fly fishing.
- Best used with hook sizes 12 and 14 to accommodate its posture.