Drake Mackerel Mayfly vs Noterus Diving Beetle

Side-by-side species comparison

Attribute Drake Mackerel Mayfly Noterus Diving Beetle
Scientific Name Ephemera glaucops Noterus clavicornis
Order Ephemeroptera Coleoptera
Family Ephemeridae Dytiscidae
Size 15-20 mm 4-5 mm
Habitat Ponds & Lakes Ponds & Lakes
Diet Detritivores Omnivores
Regions Europe Europe, Western Asia
Conservation Least Concern Least Concern

Drake Mackerel Mayfly

A large European burrowing mayfly with distinctive dark markings on its wings. It emerges in synchronous swarms during warm summer evenings.

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Did You Know?

Swarms of this mayfly dancing over European rivers at sunset have inspired poets and naturalists for centuries.

Noterus Diving Beetle

A small, oval, yellowish-brown diving beetle with distinctively thickened antennae. It is widespread across Europe in still or slow-flowing waters.

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Did You Know?

Its swollen club-shaped antennae are unique among diving beetles and may enhance underwater sensory perception.