Angler's Curse Mayfly vs White-Stockinged Black Fly

Side-by-side species comparison

Attribute Angler's Curse Mayfly White-Stockinged Black Fly
Scientific Name Caenis rivulorum Simulium vittatum
Order Ephemeroptera Diptera
Family Caenidae Simuliidae
Size 3-5 mm 2-5 mm
Habitat Rivers & Streams Rivers & Streams
Diet Detritivores Blood Feeders
Regions Europe North America
Conservation Least Concern Least Concern

Angler's Curse Mayfly

A tiny mayfly nicknamed for frustrating anglers who cannot imitate it on hook. Nymphs burrow in fine sediments of slow rivers and streams.

💡

Did You Know?

At just a few millimeters long, trout feed on them voraciously but anglers struggle to tie flies small enough to match.

White-Stockinged Black Fly

A widespread black fly species complex with distinctive white-banded legs. Larvae colonize almost any flowing water from irrigation ditches to large rivers.

💡

Did You Know?

It is one of the most commonly encountered black fly species in laboratory research.