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Redadman has attached this picture to aid in identification. The message is below.
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RedadmanApril 24th, 2020, 2:24 am
NEW YORK

Posts: 2
This mayfly was observed in the Croton system yesterday. A size 14 maybe. My best guess is drunella cornuta based on photos from this site, but I'm stumped.
TaxonApril 24th, 2020, 4:28 am
Site Editor
Plano, TX

Posts: 1323
Hi Larry-

Welcome aboard. I believe this female subimago to be of genus Leptophlebia. If you lighten the image, the characteristic abdominal banding becomes more apparent.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
RedadmanApril 24th, 2020, 12:49 pm
NEW YORK

Posts: 2
Thanks for the quick response. Someone else thought it might be a hendrickson. I've fished this stream for years and never seen this exact coloration.
MartinlfMay 1st, 2020, 5:20 pm
Moderator
Palmyra PA

Posts: 3125
A little early for drunella? The legs don't look right for drunella, either, I think. And I think the black quill typically has a very short middle tail. Could it be a hennie? What size was it? Oh and pretty photo, by the way. More to consider https://www.inaturalist.org/guide_taxa/35362
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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