Green Drake Mayfly vs Perlodes Stonefly

Side-by-side species comparison

Attribute Green Drake Mayfly Perlodes Stonefly
Scientific Name Ephemera guttulata Perlodes microcephalus
Order Ephemeroptera Plecoptera
Family Ephemeridae Perlodidae
Size 18-25 mm 15-25 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Predators
Regions Eastern North America Europe
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.

Perlodes Stonefly

A striking patterned stonefly with yellow and brown markings found across Europe. Nymphs are active predators that emerge in spring.

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Did You Know?

Males communicate with potential mates by vibrating their bodies against the substrate to produce drumming signals.