Lancet Clubtail vs Yellow May Dun

Side-by-side species comparison

Attribute Lancet Clubtail Yellow May Dun
Scientific Name Phanogomphus exilis Heptagenia sulphurea
Order Odonata Ephemeroptera
Family Gomphidae Heptageniidae
Size 38-45 mm 10-15 mm
Habitat Forests Rivers & Streams
Diet Omnivores Omnivores
Regions North America Europe
Conservation Least Concern Least Concern

Lancet Clubtail

A small, slender clubtail dragonfly of eastern North America with greenish-yellow markings. It frequents small streams and creeks in forested areas.

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Did You Know?

It is one of the smallest clubtails in North America, easily overlooked along woodland streams.

Yellow May Dun

A bright sulfur-yellow mayfly common across European rivers during early summer. Its flat nymphs are adapted to fast-flowing water on stony substrates.

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Did You Know?

The striking yellow color of this mayfly makes it one of the most easily recognizable species on European rivers.