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.

I caught a nice brookie a few weeks earlier in this pool at the junction of a split channel in the stream. The huge fallen tree is great cover.

From the Mystery Creek # 23 in New York

Stream photos

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Isoperla (Stripetails and Yellow Stones) Stonefly Adult Isoperla (Stripetails and Yellow Stones) Stonefly Adult

Dorsal view of a Isoperla (Perlodidae) (Stripetails and Yellow Stones) Stonefly Adult from Mystery Creek #308 in Washington

9 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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Genus ID

Argia Damselfly Nymph

3 Pictures

Dorsal view of a Argia (Coenagrionidae) Damselfly Nymph from Fall Creek in New York

My friend Willy captured this early instar damselfly nymph and brought it to me for identification. It is more robust and stocky at this early stage than the spindly appearance of the later instars, and its appearance is less familiar.

Collected August 27, 2005 from Fall Creek in New York

Added by Troutnut on April 14, 2006

Collected August 27, 2005 from Fall Creek in New York and added by Troutnut on April 14, 2006

DMM
Posts: 34

DMM on Nov 18, 2006November 18th, 2006, 7:19 pm EST

May be Argia, detailed pictures of the prementum are always good for the ID of Odonata. Odonata can be tricky in general though, so the more details the better.

David

Hex MayfliesHexagenia limbata

Troutnut Forum › Specimen Discussion › Genus ID