Most observed native spiny crawler mayflies
Native to the US, by how plants support them, most observed first.
Other species All
15 native species with no plant ties on record, most observed first.
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Sulphur Dun
Ephemerella invaria
351 observations
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Pale Dun
Ephemerella dorothea
180 observations
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Dark Hendrickson
Ephemerella subvaria
161 observations
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Western Green Drake
Drunella doddsii
77 observations
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Western Green Drake
Drunella grandis
65 observations
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Great Red Quill
Timpanoga hecuba
48 observations
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Little Dark Hendrickson
Ephemerella needhami
42 observations
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Flav
Drunella flavilinea
21 observations