Green Drake Mayfly vs Labrador Minnow Mayfly

Side-by-side species comparison

Attribute Green Drake Mayfly Labrador Minnow Mayfly
Scientific Name Ephemera guttulata Baetis labradoriensis
Order Ephemeroptera Ephemeroptera
Family Ephemeridae Baetidae
Size 18-25 mm 5-8 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Omnivores
Regions Eastern North America North America
Conservation Least Concern Least Concern

Green Drake Mayfly

A large and strikingly beautiful mayfly with mottled wings that emerges in late spring. Its hatches on eastern North American streams create some of the year's best fly-fishing opportunities.

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Did You Know?

Green drake hatches trigger a feeding frenzy among trout, with even the largest fish rising to the surface.

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.