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.

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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Male Baetidae (Blue-Winged Olive) Mayfly Dun Male Baetidae (Blue-Winged Olive) Mayfly Dun

Lateral view of a Male Baetidae (Blue-Winged Olive) Mayfly Dun from Mystery Creek #308 in Washington

This dun emerged from a mature nymph on my desk. Unfortunately its wings didn't perfectly dry out.

7 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.

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.

Stonefly Genus Zapada (Tiny Winter Blacks)

Where & when

In 118 records from GBIF, adults of this genus have mostly been collected during April (32%), March (19%), May (11%), February (10%), June (10%), July (8%), and January (5%).

In 80 records from GBIF, this genus has been collected at elevations ranging from 34 to 11135 ft, with an average (median) of 6755 ft.

Genus Range

source

Map of specific collection sites

Specimens of the Stonefly Genus Zapada

2 Female Adults

Female Zapada columbiana (Tiny Winter Black) Stonefly Adult

2 Pictures

Female Zapada columbiana (Nemouridae) (Tiny Winter Black) Stonefly Adult from the N. Fk Touchet River in Washington

Collected March 25, 2012 from the N. Fk Touchet River in Washington

Added by Bnewell on March 26, 2012

Collected March 25, 2012 from the N. Fk Touchet River in Washington and added by Bnewell on March 26, 2012

Female Zapada cinctipes (Tiny Winter Black) Stonefly Adult

1 Picture

Female Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Adult from the Touchet River in Washington

From N. Touchet River at Touchet Corral.

Collected June 24, 2011 from the Touchet River in Washington

Added by Bnewell on June 26, 2011

Collected June 24, 2011 from the Touchet River in Washington and added by Bnewell on June 26, 2011

1 Adult

Zapada cinctipes (Tiny Winter Black) Stonefly Adult

1 Picture

Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Adult from the N. Fk. Touchet River in Washington

Collected April 16, 2012 from the N. Fk. Touchet River in Washington

Added by Bnewell on April 21, 2012

Collected April 16, 2012 from the N. Fk. Touchet River in Washington and added by Bnewell on April 21, 2012

1 Nymph

Zapada cinctipes (Tiny Winter Black) Stonefly Nymph

13 Pictures

Dorsal view of a Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Nymph from the Yakima River in Washington

Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.

Collected February 17, 2023 from the Yakima River in Washington

Added by Troutnut on February 20, 2023

Collected February 17, 2023 from the Yakima River in Washington and added by Troutnut on February 20, 2023