Mother of Pearl Caddisfly vs Yellow May Dun
Side-by-side species comparison
| Attribute | Mother of Pearl Caddisfly | Yellow May Dun |
|---|---|---|
| Scientific Name | Mystacides azurea | Heptagenia sulphurea |
| Order | Trichoptera | Ephemeroptera |
| Family | Leptoceridae | Heptageniidae |
| Size | 7-10 mm | 10-15 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | Europe, Asia | Europe |
| Conservation | Least Concern | Least Concern |
Mother of Pearl Caddisfly
A small iridescent caddisfly with long antennae and pearly blue-green wings. It swarms in large mating flights over lakes and slow rivers.
Did You Know?
The iridescent wing scales of this caddisfly create a shimmering blue-green appearance unique among the Trichoptera.
Yellow May Dun
A bright sulfur-yellow mayfly common across European rivers during early summer. Its flat nymphs are adapted to fast-flowing water on stony substrates.
Did You Know?
The striking yellow color of this mayfly makes it one of the most easily recognizable species on European rivers.