Blue-winged Olives
Baetis
Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
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I was not fishing, but happened to be at an unrelated social event on a hill above this tiny creek (which I never even saw) when this stonefly flew by me. I assume it came from there. Some key characteristics are tricky to follow, but process of elimination ultimately led me to Sweltsa borealis. It is reassuringly similar to this specimen posted by Bob Newell years ago. It is also so strikingly similar to this nymph from the same river system that I'm comfortable identifying that nymph from this adult. I was especially pleased with the closeup photo of four mites parasitizing this one.
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Sayfu
Posts: 560
Posts: 560
Sayfu on Sep 5, 2011September 5th, 2011, 4:21 pm EDT
Another unusual bug day for me today. When I took my boat out of the river there was a very large black bug with long antennae on the transom of my boat. Called a guy over, and he knew what it was, a certain kind of pine beetle, and I forgot what he said the first name was. He said they can pinch, and draw blood. It was a good two inches long, and before we left to float the river there was a bigger one on its back in the womens room that couldn't turn itself over.
Jmd123 on Sep 6, 2011September 6th, 2011, 12:07 pm EDT
That sounds like a pine sawyer, a beetle in the family Cerambycidae. Did the antennae curl up a bit at their ends? Some of them do have pretty strong mandibles so handle carefully! Some of them can also make noise by scraping their wings, its called stridulation, and they do it when you try to pick them up (happened to me at the U of M Bio Station when I found one sitting on my alarm clock one night).
Jonathon
Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Sayfu
Posts: 560
Posts: 560
Sayfu on Sep 6, 2011September 6th, 2011, 1:43 pm EDT
Yes, the antennae did curl up at the end. First one I have ever seen.
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