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|
|Larvae construct portable cases of sand grains or small rock fragments, coiled to resemble snail shells (sf 19.9, 19.178, 19.460a, 19.460b)||Larvae construct portable cases not shaped like coiled snail shells, or they construct no cases at all|
|Anal claw comb-shaped (sf 19.113, 19.117)||Anal claw with a stout apical hook |
|Remaining families: Apataniidae, Beraeidae, Brachycentridae, Calamoceratidae, Dipseudopsidae, Ecnomidae, Glossosomatidae, Goeridae, Hydrobiosidae, Hydropsychidae, Hydroptilidae, Lepidostomatidae, Leptoceridae, Limnephilidae, Molannidae, Odontoceridae, Philopotamidae, Phryganeidae, Polycentropodidae, Psychomyiidae, Rhyacophilidae, Rossianidae, Sericostomatidae, Thremmatidae, Uenoidae, and Xiphocentronidae|
5 Example Specimens
This species of Brachycentrus was extremely common in mid-September kick net samples in the Yakima canyon.
With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.
This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
I already had one of these on the site, but these giant Hydropsychidae larvae are just too photogenic to pass up.
|Helicopsychidae||Go to Couplet 2|