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 specimen keys pretty easily to Onocosmoecus, and it closely resembles a specimen from Alaska which caddis expert Dave Ruiter recognized as this genus. As with that specimen, the only species in the genus documented in this area is Onocosmoecus unicolor, but Dave suggested for that specimen that there might be multiple not-yet-distinguished species under the unicolor umbrella and it would be best to stick with the genus-level ID. I'm doing the same for this one.
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DayTripper on May 12, 2008May 12th, 2008, 8:26 am EDT
Here are some bugs I found waiting for the Hendricksons to pop this weekend on the Battenkill. I believe this first one to be Maccaffertium vicarium
Here's some others I haven't identified yet
I've got different angles on the Hendrickson Spinner, and the Brown Stone, as well as the Beetle- if they're needed. Also some more pics of different vicarium nymphs, some have a slightly different coloration.
Here's some others I haven't identified yet
I've got different angles on the Hendrickson Spinner, and the Brown Stone, as well as the Beetle- if they're needed. Also some more pics of different vicarium nymphs, some have a slightly different coloration.
GONZO on May 12, 2008May 12th, 2008, 9:23 am EDT
Just on a quick glance:
The vicarium ID on the heptageniid nymph seems reasonable; the stonefly nymph looks like a perlodid; the (male) Hendrickson spinner ID seems right (though missing a tail); the big beetle looks like some sort of "borer," but I have no clue about the hitchhiker; the caddisfly larva is a hydropsychid; and I'd guess that the stonefly adult could be in Taeniopterygidae. (Dave could probably sort that out for you.)
The vicarium ID on the heptageniid nymph seems reasonable; the stonefly nymph looks like a perlodid; the (male) Hendrickson spinner ID seems right (though missing a tail); the big beetle looks like some sort of "borer," but I have no clue about the hitchhiker; the caddisfly larva is a hydropsychid; and I'd guess that the stonefly adult could be in Taeniopterygidae. (Dave could probably sort that out for you.)
DayTripper on May 12, 2008May 12th, 2008, 2:52 pm EDT
Here are some more pics of the adult stonefly
http://daytripperblog.com/2008/05/12/medium-brown-stonefly-taeniopterygidae/
http://daytripperblog.com/2008/05/12/medium-brown-stonefly-taeniopterygidae/
Raider83 on Jun 27, 2008June 27th, 2008, 6:24 am EDT
Daytripper, I think the mystery larva is a predaceous diving beetle larva
GONZO on Jun 27, 2008June 27th, 2008, 10:48 am EDT
Raider83,
Some Dytiscidae larvae have a superficial resemblance to some caddisfly larvae. If this larva had been photographed in the water (and from different angles), I think the differences would be easier to see.
Some Dytiscidae larvae have a superficial resemblance to some caddisfly larvae. If this larva had been photographed in the water (and from different angles), I think the differences would be easier to see.
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