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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Kogotus Stonefly Nymph Kogotus Stonefly Nymph

Dorsal view of a Kogotus (Perlodidae) Stonefly Nymph from Mystery Creek #199 in Washington

This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.

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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 midge adult

Cherylkorca has attached these 3 pictures to aid in identification. The message is below.

Cherylkorca

Posts: 4

Cherylkorca on Jan 6, 2020January 6th, 2020, 2:10 pm EST

I live in Montana and right now we have decent hatch of what i call them yellow butt midges. Adult has folded back whitish , clear wings with front abdomen towards the head black and black legs and rear abdomen bright yellow. They hatch in slow water. Would love to know if anyone here would now the name of this midge. I would say its size 20-22
Thank you very much for your help,
Cheryl

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Jan 6, 2020January 6th, 2020, 9:26 pm EST

Hi Cheryl-

Based in what can be seen of the wing venation, I believe the adult images to be of Family Chironomidae, Subfamily Chironominae, and Tribe Chironomini.

However, if you desire an expert opinion, which mine as certainly not, I would recommend that you contact Ethan Bright at University Of Michigan, whose email address I can PM to you upon your request.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Cherylkorca

Posts: 4

Cherylkorca on Feb 18, 2020February 18th, 2020, 4:07 pm EST

Thank you Rodger