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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
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.
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Stonefly Species Doroneuria baumanni (Golden Stones)

Species Range

Physical description

Most physical descriptions on Troutnut are direct or slightly edited quotes from the original scientific sources describing or updating the species, although there may be errors in copying them to this website. Such descriptions aren't always definitive, because species often turn out to be more variable than the original describers observed. In some cases, only a single specimen was described! However, they are useful starting points.

Source: Eggs Of Western Nearctic Acroneuriinae (Plecoptera: Perlidae)

Egg. Outline oval with short, narrow collar (Fig. 9). Egg length ca. 500 µm, equatorial width ca. 400 µm, collar length ca. 20 µm width ca. 50 µm Chorionic surface coarsely punctate with shallow pits over middle half of egg (Figs 10, 12.); punctate zone ca. 260 µm wide; area around collar and a narrow opercular ring around lid lack pits; some pits on lid form obscure follicle cell impression walls. Micropylar row located on lid (Fig. 11); orifices raised, canals not clearly visible on surface.

Specimens of the Stonefly Species Doroneuria baumanni

1 Male Adult
2 Nymphs

Start a Discussion of Doroneuria baumanni

Stonefly Species Doroneuria baumanni (Golden Stones)

Species Range
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