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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.

Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
This species was fairly abundant in a February sample of the upper Yakima.
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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Ameletus ludens (Brown Dun) Mayfly Nymph Pictures

Ruler view of a Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York The smallest ruler marks are 1 mm.
Dorsal view of a Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York
Ventral view of a Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York
Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York
Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York
In this picture, the contrast is artificially, strongly enhanced to show the configuration of setae that would otherwise be very difficult to see.

Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York
Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York

This mayfly was collected from Mystery Creek #62 in New York on April 1st, 2007 and added to Troutnut.com by Troutnut on April 3rd, 2007.

Discussions of this Nymph

Great pictures Jason
4 replies
Posted by CalebBoyle on Apr 4, 2007
Last reply on Sep 9, 2009 by Flytyer0423
Thanks for the pics of this genus Jason. I had sampled a creek that I live close to and had collected something that I thought was Siphloplecton, but afer seeing your photos it must be Ameletus.

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Ameletus ludens (Brown Dun) Mayfly Nymph Pictures

Collection details
Location: Mystery Creek #62, New York
Date: April 1st, 2007
Added to site: April 3rd, 2007
Author: Troutnut
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