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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Coleoptera (Beetle) Insect Larva Coleoptera (Beetle) Insect Larva

Lateral view of a Coleoptera (Beetle) Insect Larva from Sears Creek in Washington

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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.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

2 Matflies in need of names

Jummbeau has attached these 2 pictures to aid in identification. The message is below.

Jummbeau
Maine

Posts: 3

Jummbeau on Apr 21, 2008April 21st, 2008, 11:02 am EDT

Can anyone help with these two Mayflies? Both pictures were taken on June 17th, 2007 on Jam Black Brook in Appelton, Maine. The brown one is about a size 14 and the green one is about a 12/10. The brown one has 2 tais and I can't remember how many the other one had. Any assistence would be helpful.

Thank you in advance,

Jeff Space

Jummbeau
Maine

Posts: 3

Jummbeau on Apr 21, 2008April 21st, 2008, 11:09 am EDT

Sorry for the spelling mistakes. I guess I am not a very good proof reader.

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Apr 21, 2008April 21st, 2008, 12:25 pm EDT

In need of some names? Ok... the top one is Lenny. The bottom one is Bob.

As for species, I think the bottom one is some species in the Siphlonurus genus (gray drakes), though I couldn't tell you which one.

The top one might be in that genus, too, but I don't remember there being a species with that coloration in the spinner's hind wing.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Apr 21, 2008April 21st, 2008, 5:52 pm EDT

Jason and Jummbeau, based on the brown hind wing, I'd guess that "Lenny" is Siphlonurus mirus.

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Apr 21, 2008April 21st, 2008, 6:15 pm EDT

Hey Gonzo, you da man.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Apr 21, 2008April 21st, 2008, 6:28 pm EDT

Thanks, Roger. ;)

Jummbeau
Maine

Posts: 3

Jummbeau on Apr 23, 2008April 23rd, 2008, 9:39 am EDT

Thank you very much for your replies. Thank you also for giving me a good laugh. I made a pattern for the first mayfly, now it has a name "The Lenny".