The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Option 1 | Option 2 |
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Mandibles each usually with uniform scraper blade (sf 19.83) | Mandibles almost always toothed (sf 19.49) |
If mandible toothed instead (sf 19.82), then more than 25 setae present on membraneous area of metanotum between the left and right metanotal sa1 sclerites (sf 19.81) | Setae typically absent from area between metanotal sa1 sclerites If setae present in this location, these setae number fewer than 25 |
Metanotal sa1 sclerites absent in some genera. Larvae construct cases mainly of mineral materials (sf 19.126, 19.429, 19.430, 19.481, 19.502) Distributed in Appalachian Mountains, North, and West | |
Remaining families: Limnephilidae and Rossianidae | |
1 Example Specimen | 5 Example Specimens |
Apataniidae | Go to Couplet 23 |