Salmonflies
Pteronarcys californica
The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
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This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
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The size of the head compared to the body in this larva is surprising, and I think this means it's a fairly early instar of something which is going to get a lot bigger, but I'm not sure.
Litobrancha on May 13, 2007May 13th, 2007, 7:19 am EDT
can't tell how much mesonotum sclerites are emarginated but has the horsehead look of Neophylax. case too. legs are long too. don't know any of the other uenoids.
Creno on Dec 21, 2007December 21st, 2007, 3:51 pm EST
Jason - do you have N.ornatus larvae? The leg coloration on these photos is fascinating. The sa1 setae appear to have a basal sclerite like N.ornatus.
Dave
Dave