Small Minnow Mayfly vs Noterus Diving Beetle

Side-by-side species comparison

Attribute Small Minnow Mayfly Noterus Diving Beetle
Scientific Name Callibaetis ferrugineus Noterus clavicornis
Order Ephemeroptera Coleoptera
Family Baetidae Dytiscidae
Size 7-11 mm 4-5 mm
Habitat Ponds & Lakes Ponds & Lakes
Diet Detritivores Omnivores
Regions North America Europe, Western Asia
Conservation Least Concern Least Concern

Small Minnow Mayfly

A mottled brown mayfly common in still waters across North America. Nymphs are excellent swimmers that mimic small minnows.

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Did You Know?

It can produce up to three generations per year in warm climates.

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.