Colymbetes Diving Beetle vs Sulphur Mayfly
Side-by-side species comparison
| Attribute | Colymbetes Diving Beetle | Sulphur Mayfly |
|---|---|---|
| Scientific Name | Colymbetes fuscus | Ephemerella dorothea |
| Order | Coleoptera | Ephemeroptera |
| Family | Dytiscidae | Ephemerellidae |
| Size | 16-19 mm | 6-9 mm |
| Habitat | Ponds & Lakes | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Europe, Northern Asia | North America |
| Conservation | Least Concern | Least Concern |
Colymbetes Diving Beetle
A medium-sized diving beetle with finely lined yellowish-brown elytra found across Europe. It inhabits a wide range of standing water habitats.
Did You Know?
It is one of the first aquatic beetles to colonize newly created ponds, often arriving within days.
Sulphur Mayfly
A small pale yellow mayfly that produces reliable evening hatches on eastern North American streams. One of the most important species for fly anglers.
Did You Know?
Sulphur mayfly hatches are so predictable in timing that experienced anglers can arrive at the stream within minutes of the first emergence.