Labrador Minnow Mayfly vs Small Minnow Mayfly

Side-by-side species comparison

Attribute Labrador Minnow Mayfly Small Minnow Mayfly
Scientific Name Baetis labradoriensis Callibaetis ferrugineus
Order Ephemeroptera Ephemeroptera
Family Baetidae Baetidae
Size 5-8 mm 7-11 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Omnivores Detritivores
Regions North America North America
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.

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.