Labrador Minnow Mayfly vs Arctic Mayfly

Side-by-side species comparison

Attribute Labrador Minnow Mayfly Arctic Mayfly
Scientific Name Baetis labradoriensis Baetis bundyae
Order Ephemeroptera Ephemeroptera
Family Baetidae Baetidae
Size 5-8 mm 5-8 mm
Habitat Rivers & Streams Tundra & Arctic
Diet Omnivores Omnivores
Regions North America Arctic Canada, Alaska, northern Scandinavia
Conservation Least Concern Least Concern

Labrador Minnow Mayfly

A small mayfly found in cold northern streams with rapid currents. Nymphs cling to submerged stones and feed on periphyton.

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Did You Know?

Nymphs can complete their development in as little as three weeks during warm summer conditions.

Arctic Mayfly

A small, delicate mayfly with transparent wings and two long tail filaments. Nymphs are agile swimmers in cold Arctic streams. Adults emerge for a very brief mating flight during the short Arctic summer.

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Did You Know?

Adult mayflies live only a few hours to a few days, just long enough to mate and lay eggs before dying.