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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.

Female Ephemera varia (Yellow Drake) Mayfly Spinner Pictures

I found this female spinner ovipositing in a small stream. She came along while I was playing a trout -- every good bug seemed to do that last night! I didn't have my bug net, so I caught the trout in my landing net, released the trout, and caught the mayfly in my landing net. Her wing got a bit messed up from that.

This mayfly was collected from Cayuta Creek in New York on July 7th, 2006 and added to Troutnut.com by Troutnut on July 8th, 2006.

Discussions of this Spinner

Surprising Length
3 replies
Posted by Taxon on Jul 10, 2006
Last reply on Sep 13, 2006 by GONZO
Not sure who (originally) came up with a 13-16 mm. length range for Ephemera varia spinners, but I'm suspecting each subsequent author must have just parroted it. Your specimen appears to be 19 mm. in length, and there is certainly no doubt concerning its identity.

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