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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

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.

Male Ephemera guttulata (Green Drake) Mayfly Spinner Pictures

This spinner was the only member of its species I saw all night during an incredibly thick and tricky mixed hatch on Penn's Creek a few days before the real start of its famous green drake hatch.

Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Lateral view of a Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Ruler view of a Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania The smallest ruler marks are 1 mm.
Ventral view of a Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania
Male Ephemera guttulata (Ephemeridae) (Green Drake) Mayfly Spinner from Penn's Creek in Pennsylvania

This mayfly was collected from Penn's Creek in Pennsylvania on May 26th, 2007 and added to Troutnut.com by Troutnut on June 4th, 2007.

Discussions of this Spinner

green drake hatch on yellow creek
Posted by Liljrob on Jul 7, 2008
Last reply on Jul 7, 2008 by Liljrob
Is it just me or was the green drake hatch on yellow creek in PA the worst in a long time.

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Male Ephemera guttulata (Green Drake) Mayfly Spinner Pictures

Collection details
Location: Penn's Creek, Pennsylvania
Date: May 26th, 2007
Added to site: June 4th, 2007
Author: Troutnut
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