Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin

Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

Stream photos

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Skwala (Large Springfly) Stonefly Nymph Skwala (Large Springfly) Stonefly Nymph

Dorsal view of a Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington

This Skwala nymph still has a couple months left to go before hatching, but it's still a good representative of its species, which was extremely abundant in my sample for a stonefly of this size. It's obvious why the Yakima is known for its Skwala hatch.

6 Recently Added Photos

27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.

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Help With Identification

Redadman has attached this picture to aid in identification. The message is below.

Redadman
NEW YORK

Posts: 2

Redadman on Apr 23, 2020April 23rd, 2020, 10:24 pm EDT

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.

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Apr 24, 2020April 24th, 2020, 12:28 am EDT

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

Redadman
NEW YORK

Posts: 2

Redadman on Apr 24, 2020April 24th, 2020, 8:49 am EDT

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.

Martinlf

Moderator
Palmyra PA

Posts: 3047

Martinlf on May 1, 2020May 1st, 2020, 1:20 pm EDT

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