Dark Blue Quill vs Brown Drake Mayfly

Side-by-side species comparison

Attribute Dark Blue Quill Brown Drake Mayfly
Scientific Name Paraleptophlebia mollis Ephemera simulans
Order Ephemeroptera Ephemeroptera
Family Leptophlebiidae Ephemeridae
Size 6-9 mm 14-20 mm
Habitat Rivers & Streams Rivers & Streams
Diet Detritivores Omnivores
Regions North America North America
Conservation Least Concern Least Concern

Dark Blue Quill

A small dusky-winged mayfly of Appalachian headwater streams. Nymphs are slow crawlers among leaf debris in gentle currents.

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Did You Know?

It is one of the earliest mayflies to emerge each spring, sometimes hatching when snow still lines the streambanks.

Brown Drake Mayfly

A large brownish mayfly with mottled wings that produces dramatic evening hatches on trout streams. Nymphs burrow in sandy and silty streambeds.

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Did You Know?

Brown drake hatches occur over just a few days each year, creating some of the most spectacular dry-fly fishing of the season.