Ecdyonurus torrentis

Large Brook Dun Mayfly

Ecdyonurus torrentis, Large Brook Dun Mayfly. Nymphs are aquatic, living in flowing water, feeding by scaping algae from stones. Winged adult emerge in early summer to mate and lay eggs in the water.


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Ecdyonurus torrentis, Large Brook Dun Mayfly
Adult Mayfly
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Ecdyonurus torrentis, Large Brook Dun Mayfly
Adult Mayfly
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Ecdyonurus torrentis, Large Brook Dun Mayfly
Adult Mayfly
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Ecdyonurus torrentis, Large Brook Dun Mayfly
Adult Mayfly

Photograph detail


Slide 1: Ecdyonurus torrentis, Large Brook Dun Mayfly. On stone bridge support. Apedale Beck. Hargill, Redmire. May.


Slide 2: Ecdyonurus torrentis, Large Brook Dun Mayfly. On stone bridge support. Apedale Beck. Hargill, Redmire. May.


Slide 3: Ecdyonurus torrentis, Large Brook Dun Mayfly. On stone bridge support. Apedale Beck. Hargill, Redmire. May.


Slide 4: Ecdyonurus torrentis, Large Brook Dun Mayfly. On stone bridge support. Apedale Beck. Hargill, Redmire. May.